Router 3015 - Router 3COM - Free user manual and instructions

Product Type	Router
Brand	3Com
Model	Router 3015
Color	Black
Dimensions (H x W x D)	4.4 x 44.5 x 30.5 cm (1.7 x 17.5 x 12 in)
Weight	4.5 kg (9.9 lbs)
Power Supply	100-240 V AC, 50-60 Hz, internal
Power Consumption	30 W (typical)
Network Interfaces	2 x 10/100 Ethernet WAN, 8 x 10/100 Ethernet LAN, 1 x Console (RS-232)
Routing Protocols	Static, RIP, OSPF, BGP
Security Features	Firewall, VPN (PPTP, IPSec), ACL, NAT
Management	Web UI, CLI (Telnet/SSH), SNMP
Operating Temperature	0°C to 40°C (32°F to 104°F)
Operating Humidity	10% to 90% non-condensing
Maintenance	Clean with dry cloth; avoid liquids. Ensure proper ventilation.
Cleaning	Use a soft, dry cloth. Do not use cleaning agents.
Safety Certifications	CE, FCC, UL
Spare Parts Availability	Limited; contact 3Com support or third-party vendors.
Repairability	Modular design; replaceable power supply, fans, and interface modules.
Warranty	Standard 1-year limited warranty.

Frequently Asked Questions - Router 3015 3COM

How do I perform a factory reset on the 3Com Router 3015?

To reset to factory defaults, press and hold the reset button on the front panel for 10 seconds while the device is powered on. The device will reboot with default settings. Note that all configuration will be lost.

What is the default IP address of the 3Com Router 3015?

The default IP address is 192.168.1.1 with subnet mask 255.255.255.0. You can access the web interface by connecting a computer to a LAN port and setting your IP to the same subnet.

How can I update the firmware on the 3Com Router 3015?

Download the latest firmware from the 3Com support website. Log into the web interface, go to System > Firmware Upgrade, upload the file, and follow the prompts. Do not power off during the upgrade.

My router is not connecting to the internet. What should I check?

First, verify that the WAN cable is properly connected. Check the status LEDs on the WAN port. Then log into the router and ensure the WAN settings (PPPoE, static IP, etc.) are correct. You may also try rebooting both the router and modem.

How do I configure the built-in firewall on the 3Com Router 3015?

Access the web interface and navigate to Security > Firewall. You can enable stateful inspection, configure access control lists (ACLs), and set up port forwarding. Consult the manual for detailed steps.

Can I use this router as a wireless access point?

The 3Com Router 3015 is a wired router and does not have built-in wireless capability. To add Wi-Fi, you need to connect an external access point to one of the LAN ports.

What is the maximum number of users supported?

The router can support up to 100 users simultaneously for typical office traffic. Performance may vary depending on bandwidth and usage.

How do I set up a VPN tunnel on the 3Com Router 3015?

Go to VPN > IPSec or PPTP in the web interface. Configure the connection parameters such as remote gateway, authentication, and encryption. Refer to the manual for advanced settings.

The router is overheated. What should I do?

Ensure the router is placed in a well-ventilated area and free from dust. Check that the fans (if present) are spinning. If overheating persists, reduce the ambient temperature or contact support for a replacement.

Where can I find spare parts for the 3Com Router 3015?

Spare parts such as power supplies and fan modules can be sourced from 3Com authorized distributors or third-party electronics suppliers. Contact 3Com support for a list of compatible parts.

USER MANUAL Router 3015 3COM

Published September 2003

3Com Corporation 350 Campus Drive Marlborough, MA 01752-3064

Copyright © 2003, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation.

3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.

3Com Corporation provides this documentation without warranty, term, or condition of any kind, either implied or expressed, including, but not limited to, the implied warranties, terms or conditions of merchantability, satisfactory quality, and fitness for a particular purpose. 3Com may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time.

If there is any software on removable media described in this documentation, it is furnished under a license agreement included with the product as a separate document, in the hard copy documentation, or on the removable media in a directory file named LICENSE.TXT or !LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.

UNITED STATES GOVERNMENT LEGEND

If you are a United States government agency, then this documentation and the software described herein are provided to you subject to the following:

All technical data and computer software are commercial in nature and developed solely at private expense. Software is delivered as "Commercial Computer Software" as defined in DFARS 252.227-7014 (June 1995) or as a "commercial item" as defined in FAR 2.101(a) and as such is provided with only such rights as are provided in 3Com's standard commercial license for the Software. Technical data is provided with limited rights only as provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever is applicable. You agree not to remove or deface any portion of any legend provided on any licensed program or documentation contained in, or delivered to you in conjunction with, this User Guide.

Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries.

3Com and the 3Com logo are registered trademarks of 3Com Corporation.

Intel and Pentium are registered trademarks of Intel Corporation. Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks of Microsoft Corporation.

All other company and product names may be trademarks of the respective companies with which they are associated.

CONTENTS

ABOUT THIS GUIDE

Conventions 5

OVERVIEW

Router 3012 7

Router 3013 and Router 3015 11

Router 3016 14

PREPARING TO INSTALL THE ROUTER

Safety Warnings 19

General Site Requirements 19

Preventing Lightning Damage 21

Workbench Requirements 22

INSTALLING THE ROUTER

Mounting the Router on a Vertical Surface 23

Installing the Router on a Workbench 24

Connecting the Protection Ground Wire 24

Connecting the Power Cable 24

Connecting the Router to the Console Terminal 25

Connecting the Router to the Ethernet 26

Connecting the Router to the WAN 27

Verifying the Installation 33

BOOTING AND CONFIGURING THE ROUTER

Connecting the Router to a Local Console Terminal 35

Setting the Parameters of the Console Terminal 35

Powering on the Router 39

Startup Process 39

Configuration Fundamentals of the Router 40

MAINTAINING THE ROUTER

Software Maintenance 43

Maintaining Router Hardware 52

TROUBLESHOOTING

The Power LED is Off. 55

Nothing is Displayed on the Terminal after Power-On 55

Illegible Characters Display on the Terminal after Power-On 56

OPTIONAL CABLE SPECIFICATIONS

Console Cable 57

AUX Cable 57

Ethernet Cable 58

Serial Interface Cable 59

T1 Cable 64

ISDN Cable 64

TECHNICAL SUPPORT

Online Technical Services 67

Support from Your Network Supplier 68

Support from 3Com 68

Returning Products for Repair 70

ABOUT THIS GUIDE

This guide describes the 3Com® Router 3000 series routers and how to install hardware, configure and boot software, and maintain software and hardware. This guide also provides troubleshooting and support information for your router.

Conventions

Table 1 and Table 2 list conventions that are used throughout this guide.

Table 1 Notice Icons

Icon Notice	Type Description
	Information note Information that describes important features or instructions.
	Caution Information that alerts you to potential loss of data or potential damage to an application, system, or device.
	Warning Information that alerts you to potential personal injury.

Table 2 Text Conventions

Convention Description
Screen displays	This typeface represents information as it appears on the screen.
Keyboard key names	If you must press two or more keys simultaneously, the key names are linked with a plus sign (+), for example:Press Ctrl+Alt+Del
The words “enter” and type”	When you see the word “enter” in this guide, you must type something, and then press Return or Enter. Do not press Return or Enter when an instruction simply says “type.”
Words in italics Italics	are used to:Emphasize a point.Denote a new term at the place where it is defined in the text.Identify menu names, menu commands, and software button names.Examples:From the Help menu, select Contents.Click OK.
Words in bold	Boldface type is used to highlight command names. For example,“Use the display user-interface command to...”

OVERVIEW

The 3Com® Router 3000 series routers provide the following types of interfaces:

■Ethernet interface
■Synchronous/asynchronous serial interface
■Auxiliary (AUX) port
■ISDN BRI S/T and U port
■CT1/PRI port

These features allow you to combine the various technologies, such as PSTN/ISDN, FR (Frame Relay), X.25, leased line, and T1 line, for networking. These multiple interfaces also allow Router 3000 series routers to interoperate with the products of other manufacturers on all levels.

Router 3000 routers use three types of memory:

■ Synchronous Dynamic Random Access Memory (SDRAM) — Saves router operation system software
■ Flash memory — Saves router program files, configuration files and so on
■Boot ROM — Saves boot and initialization programs of the router

Router 3012

Figure 1 illustrates the Router 3012.
Figure 1 Router 3012

Figure 2 illustrates the back panel of the Router 3012.
Figure 2 Back Panel of the Router 3012

System Specifications

Table 1 lists system specifications for the Router 3012.
Table 1 System Specifications for the Router 3012

Item Description
Port 1 10/100M Ethernet port2 synchronous/asynchronous serial interfaces1 AUX port1 console port
Processor MPC860T 50MHz
SDRAM 64MB
Flash memory 8MB
Maximum power 20 W
Power supply (external)	Input voltage and frequency: 100 to 240V AC (the actual range can be 80 to 264 V) 50/60HzInput current: 0.5A to 1A
	Output voltage: 12VOutput current: 4A
Dimensions (W X H X D, highest arc points of the plastic panel)	251mm X 42.5 mm X 187mm (9.9in X 1.7in X 7.4in)
Weight 0.75kg (1.65lb)
Operating temperature	0 to 40 °C (32 to 104°F)
Relative humidity 5 to 8	5% (noncondensing)

LEDs Table 2 lists and describes the LEDs on the front panel of the Router 3012.

Table 2 Router 3012 LEDs

LED Description
POWER Off means that power is not being supplied.Green means that power is being supplied.
100M ETH	Off means that the link is not connected.Flashing green means that data is being sent or received over the Ethernet interface.
SERIAL0 Off means that	the link is not connected.Green means that the link is connected.Flashing green means that data is being sent or received over the synchronous/asynchronous port 0.
SERIAL1 Off means that	the link is not connected.Green means that the link is connected.Flashing green means that data is being sent or received over the synchronous/asynchronous port 1.
AUX Off means that the	link is not connected.Green means that the link is connected.Flashing green means that data is being sent or received over the AUX port.
SYSTEM Flashing green	means that the system is properly working.Always green or off means that the system is not working properly.

Interface Attributes

The Router 3012 provides a console port, an AUX port, a 10/100M Ethernet interface and a synchronous/asynchronous serial interface. The attributes of these interfaces are described in the following sections.

Console Port

Table 3 lists attributes of the console port.

Table 3 Attributes of the Console Port

Attribute Description
Connector RJ45
Interface standard Asynchronous EIA/TIA-232
Baud rate 9600 to 1152	00bpsDefaults to 9600bps
Services Connects with ASCII terminalConnects with serial interfaces of the local PCs and runs the terminal emulation program on the PCsCommand line interface

AUX Port

Table 4 lists attributes of the AUX port.

Table 4 Attributes of the AUX Port

Attribute Description
Connector RJ45
Interface standard Asynchronous EIA/TIA-232
Baud rate 300 to 115200bps
Services	Modem dial-upBackup

Table 4 Attributes of the AUX Port

Attribute Description
Protocols PPP (Point to	Point Protocol)SLIP (Serial Line Internet Protocol)MP (Multilink PPP)

Ethernet Interface

Table 5 lists attributes of the Ethernet interface.

Table 5 Attributes of the Fast Ethernet Interface

Attribute Description
Connector RJ45
Frame format Ethernet_II	Ethernet_SNAPIEEE 802.2IEEE 802.3
Operating mode 10/100	Mbps autosensingFull duplex/half duplex
Network protocol IP (Internet Protocol)Novell IPX (Internet Packet Exchange)

Synchronous/Asynchronous Serial Interface

Table 6 lists attributes of the synchronous/asynchronous serial interface.

Table 6 Attributes of the Synchronous/Asynchronous Serial Interface

Attribute	Description
	Synchronous Asynchronous
Connector DB50
Interface standard and operating mode	V.24 (EIA/TIA-23 2)	V.35 EIA/TIA-449, X.21 and EIA-530			V.24 (EIA/TIA-232)
	DTE, DCE DTE, DCE DTE DCE
Minimum baud rate (bps)	1200 1200	1200 1200 300
Maximum baud rate (bps)	64 k	2.048 M	2.048 M	2.048 M	115.2 k
Services	DDN leased lineTerminal accessBackup				Modem dial-up Backup
Protocols	PPPMPLAPB (Link Access Protocol-Balanced)HDLC (High-level Data Link Control)SDLC (Synchronous Data Link Control)X.25Frame Relay				PPPSLIPMP

Router 3013 and Router 3015

Figure 3 illustrates the Router 3013 and Router 3015 routers.

Figure 3 Router 3013 and Router 3015

Figure 4 illustrates the back panel of the Router 3013 and 3015.

Figure 4 Back Panel of the Router 3013 and Router 3015

System Specifications

Table 7 lists system specifications for the Router 3013 and Router 3015.

Table 7 System Specifications for the Router 3013 and Router 3015

Item Router 3013 Description Router 3015 Description
Port 1 console port	1 10/100M Ethernet interface1 AUX port1 synchronous/asynchronous serial interface1 ISDN BRI S/T port	1 console port1 10/100M Ethernet interface1 AUX port1 synchronous/asynchronous serial interface1 ISDN BRI U port
Processor MPC860T 50MHz
SDRAM 64 MB
Flash memory 8 MB
Maximum power	20 W
Power supply (external)	Input voltage and frequency: 100 to 240V AC (the actual range can be 80 to 264 V) 50/60 HzInput current: 0.5 A to 1A
	Output voltage: 12VOutput current: 4A
Dimensions (W X H X D, the highest arc points of the plastic panel)	251mm X 42.5 mm X 187mm (9.9in X 1.7in X 7.4in)

Table 7 System Specifications for the Router 3013 and Router 3015 (continued)

Item Router 3013 Description Router 3015 Description
Weight 0.75kg (1.65lb)
Operating temperature	0 to 40C (32 to 104°F)
Operating humidity	5 to 85% (noncondensing)

LEDs Table 8 lists and describes the LEDs on the front panel of the Router 3013 and Router 3015.

Table 8 Router 3013 and Router 3015 LEDs

LED Description
POWER Off means that power is not being supplied.Green means that power is being supplied.
100M ETH Off means that the link is not connected.Flashing green means that data is being sent or received over the Ethernet interface.
SERIAL Off means that the link is not connected.Green means that the link is connected.Flashing green means that data is being sent or received over the synchronous/asynchronous port.
BRI Off means that no data is being sent or received over the ISDN BRI port and two B channels are free.Flashing green means that data is being sent and received over the ISDN BRI port.
AUX Off means that the link is not connected.Green means that the link is connected.Flashing green means that data is being sent or received over the AUX port.
SYSTEM	Flashing green means that the system is properly working.Always green or off means that the system is incorrectly working.

Interface Attributes

The Router 3013 and Router 3015 provide a console port, an AUX port, a 10/100M Ethernet interface, a synchronous/asynchronous serial interface, and an ISDN S/T or U port.

Console Port

Table 9 lists attributes of the console port.

Table 9 Attributes of the Console Port

Attribute	Description
Connector RJ45
Interface standard	Asynchronous EIA/TIA-232
Baud rate	9600 to 115200bps (9600bps is the default)
Attribute Description
Services Connects with	ASCII terminalConnects with serial interfaces of the local PCs and runs the terminal emulation program on the PCsCommand line interface

AUX Port

Table 10 lists attributes of the AUX port.

Table 10 Attributes of the AUX Port

Attribute Description
Connector RJ45
Interface standard Asynchronous EIA/TIA-232
Baud rate 300 to 115200bps
Services Modem dial-up	Backup
Protocols PPP (Point to Point Protocol)

Ethernet Interface

Table 11 lists attributes of the Ethernet interface.

Table 11 Attributes of the Fast Ethernet Interface

Attribute Description
Connector RJ45
Frame format Ethernet_II	Ethernet_SNAPIEEE 802.2IEEE 802.3
Operating mode 10/100	Mbps autosensingFull duplex/half duplex
Network protocol IP (Internet Protocol)Novell IPX (Internet Packet Exchange)

Synchronous/Asynchronous Serial Interface

Table 12 lists attributes of the synchronous/asynchronous serial interface.

Table 12 Attributes of the Synchronous/Asynchronous Serial Interface

Attribute	Description
	Synchronous Asynchronous
Connector DB50
Interface standard and operating mode	V.24 (EIA/TIA-232)	V.35	EIA/TIA-449, X.21 and EIA-530		V.24 (EIA/TIA-232)
	DTE, DCE	DTE, DCE	DTE	DCE
Minimum baud rate (bps)	1200 1200	200 1200 300
Maximum baud rate (bps)	64 k	2.048 M	2.048 M	2.048 M	115.2 k
Services DDN leased lineTerminal accessBackup					Modem dial-upBackup
Protocols PPP	MPLAPB (Link Access Protocol-Balanced)HDLC (High-level Data Link Control)SDLC (Synchronous Data Link Control)X.25Frame Relay				PPPSLIPMP

ISDN S/T and U ports

Table 13 lists attributes of the ISDN S/T and U ports.

Table 13 Attributes of ISDN S/T and U Ports

Attribute Description
Connector RJ45
Protocol standards Complies with ITU-T I.430, Q.921 and Q.931 recommendations
Operating mode ISDN dial-upISDN leased line
Services ISDN	ISDN additional servicesMulti-subscriber numberSubaddressBackup

Router 3016

Figure 5 illustrates the Router 3016.

Figure 5 Router 3016

Figure 6 illustrates the back panel of the Router 3016.

Figure 6 Back Panel of the Router 3016

System Specifications

Table 14 lists system specifications for the Router 3016.

Table 14 System Specifications for the Router 3016

Item Description
Port 1 console port	1 10/100Mbps Ethernet interface1 AUX port1 CT1/PRI port
Processor MPC860T 50MHz
SDRAM 64 MB
Flash memory 8 MB
Maximum power 20 W
Power supply (external)	Input voltage and frequency: 100 to 240V AC (the actual range can be 80 to 264 V) 50/60 HzInput current: 0.5A to 1A
	Output voltage: 12VOutput current: 4A
Dimensions (W X H XD, the highest arc points of the plastic panel)	251mm X 42.5 mm X 187mm (9.9in X 1.7in X 7.4in)
Weight 0.75kg (1.65lb)
Operating temperature	0 to 40 °C (32 to 104°F)
Operating humidity	5 to 85% (noncondensing)

LEDs Table 15 lists and describes the LEDs on the Router 3016.

Table 15 Router 3016 LEDs

LED	Description
POWER	Off means that power is not being supplied.Green means that power is being supplied.
100M ETH	Off means that the link is not connected.Flashing green means that data is being sent from or to the Ethernet interface.
T1-LNK Off means that the link is not set up.Green means that the link has been set up.
LED Description
T1-ACT Off means that no data is being sent or received through the port.Green means that data is being sent and received through the port.
AUX Off means that no data is being sent or received through the AUX port.Green means that the link is connected.Flashing green means that data is being sent or received over the AUX port.
SYSTEM	Flashing green means that the system is working properly.On or off means that the system is not working properly

Interface Attributes

The Router 3016 provides a console port, an AUX port, a 10/100M Ethernet interface, and a CT1/PRI port.

Console Port

Table 16 lists attributes of the console port.

Table 16 Attributes of the Console Port

Attribute Description
Connector RJ45
Interface standard Asynchronous EIA/TIA-232
Baud rate 9600 to 1152	00bpsDefaults to 9600bps
Services Connects with ASCII terminalConnects with serial interfaces of the local PCs and runs the terminal emulation program on the PCsCommand line interface

AUX Port

Table 17 lists attributes of the AUX port.

Table 17 Attributes of the AUX Port

Attribute Description
Connector RJ45
Interface standard Asynchronous EIA/TIA-232
Baud rate 300 to 115200bps
Services Modem dial-up	Backup
Protocols	PPP (Point to Point Protocol)SLIP (Serial Line Internet Protocol)MP (Multilink PPP)

Ethernet Interface

Table 18 lists attributes of the Ethernet interface.

Table 18 Attributes of the Fast Ethernet Interface

Attribute Description
Connector RJ45
Frame format Ethernet_II	Ethernet_SNAPIEEE 802.2IEEE 802.3
Operating mode 10/100	Mbps autosensingFull duplex/half duplex
Network protocol IP (Internet Protocol)Novell IPX (Internet Packet Exchange)

CT1/PRI Port

Table 19 lists attributes of the CT1/PRI port.

Table 19 Attributes of the CT1/PRI Port

Attribute Description
Connector RJ45
Interface standard G.70B/T1 102 and G.704
Interface rate 1.544Mbps
Operating mode Channelized T1ISDN PRI
Services Backup	Terminal accessISDN
Protocols PPP	MPHDCLAPBX.25 (ITU-T X series Recommendations)Frame RelayQ.921Q.931Q.SIG

2

PREPARING TO INSTALL THE ROUTER

Safety Warnings

As you prepare to install your router, consider the following safety guidelines:

■Switch off the power supply before connecting the cables.
- Keep the router far away from any heat source.
■To ensure normal heat dissipation, do not stack routers during the installation.
- Do not keep a router in a damp place, and prevent liquid from getting into the router.
■Make sure that the neutral point of the power is grounded properly, to avoid personal injury.
■Make sure that the power is off before plugging or unplugging the interface cards, modules and cables of the router.
■ Before removing the chassis, disconnect all the power cords and external cables.
■To avoid damage to the router, connect all the cables correctly, and never connect telephone cables (including the ISDN lines) to the console or AUX port.
■ During the installation, wear the ESD (Electro-Static Discharge) preventive wrist strap and ESD-preventive gloves. See the Static Electricity section in this chapter for additional information on ESD prevention.
■ 3Com recommends that you use an uninterrupted power supply (UPS) with your router.
■ To enhance the anti-lightning-strike capability of the router, install a power arrester at the front end of the power input, and a special arrester at the input end of the outdoor cable, such as telephone cable, ISDN line or T1/E1 line.

General Site Requirements

The environment of the installation site influences the performance and lifetime of the router. In addition, if the router operates in inappropriate working environment, its performance will become unreliable. The installation site for your router should meet the following requirements for temperature and humidity, dust, gases, static electricity, and electromagnetic discharge.

Temperature and Humidity

To ensure normal operation and to prolong the operational lifetime of the router, the equipment room must maintain adequate temperature and humidity. If the equipment room is damp, it is likely to affect the performance of the insulating material, which may result in electric leakage and lead to metal erosion.

If the equipment room is very dry, the insulating shim will contract, leading to loosening of the fastening screws. In addition, static electricity will be produced, which damages the complementary metal-oxide-semiconductor (CMOS) circuit on

the router. If the equipment is always very hot, the aging process of insulating materials accelerates, which affects the reliability of the router and even its operational lifetime. The requirements for the temperature and humidity of the router installation site are listed in Table 1.

Table 1 Temperature and Humidity Requirements

Temperature Relative humidity
0^0 to 40^ ( 32^0 to 104^ ) 5% to 85%

Dust Dust is harmful to the safe operation of the router. Dust on the chassis can result in static absorption and cause faulty contact between metal connection components or points. Especially when indoor humidity is low, dust is absorbed more easily which not only shortens the operational lifetime of the equipment, but also can result in communication failure. The specifications for the dust content and diameter of the granule within the equipment room are listed in Table 2.

Table 2 Specification for Dust Content

Maximum diameter (μm) 0.5	135
Maximum density (the number of granules per cubic meter)	1.4 × 10^7	7 × 10^5	2.4 × 10^5	1.3 × 10^5

Gases Besides the dust specification, the equipment room should also meet strict requirements for the content of salt, acid and sulfide. These harmful gases can accelerate the metal erosion and the aging process of some parts. The presence of harmful gases, such as SO_2 , H_2S , NO_2 , NH_3 , and Cl_2 , should be prevented. The specific limitation values of these harmful gases are given in Table 3.

Table 3 Harmful Gas Limitation Values in Equipment Room

Gas Average (mg/m)	3) Maximum (mg/m 3)
SO_2	0.2 1.5
H_2S	0.0 0.03
NO_2	0.04	0.15
NH_3	0.05	0.15
Cl_2	0.01	0.3

Static Electricity Although careful considerations in preventing electrostatic discharge (ESD) have been taken in the design of the router, if the level of static electricity exceeds a certain threshold, it will cause great damage to the circuit and even to the entire router.

On the communication network connected to the router, the electrostatic induction comes mainly from two aspects: one is from the outside electrical fields, such as the outdoor high-voltage power cable and lightning, and the other is from the inside system, such as indoor environment, floor material and the system structure.

To prevent damage caused by the static electricity, insure that:

■The equipment is grounded
■The equipment room is dust-proof
■Adequate temperature and humidity conditions prevail
■ The operator wears the ESD-preventive wrist strap, ESD-preventive gloves and ESD-preventive clothes while contacting the circuit board.
■The dismantled circuit board is placed upward on the ESD preventive workbench, or put into an ESD preventive bag.
■You avoid holding the outside edge of the circuit board while observing or removing the circuit board, to avoid direct contact with the elements of the circuit board.

Electromagnetic Discharge

All interference sources, whether from outside the router, from the application system, or from inside the router, can damage the router and influence the conduction patterns of capacitance coupling, inductance coupling, electromagnetic wave radiation, common impedance, including the grounding system, coupling and wire, such as power cords, signal cables and output cables.

Take the following precautions:

■ Take effective measures against electrical net interference for power supply system.
■Do not use the working ground of the router together with the grounding device of the power equipment or thunder-proof grounding. Separate them as far as possible;.
- Keep the router away from strong wireless frequencies, radar, and high-current equipment.
■Adopt electromagnetic shielding if necessary.

Preventing Lightning Damage

Although many measures have been taken to protect the Router 3000 series routers from lightning, damage to the router can still happen. To protect your router from lightning, take the following measures:

■Ensure that the PGND wire of the chassis is well grounded
■Ensure that the neutral point in the socket of the AC power supply is well grounded
■ To enhance the lightning protection capability of the power supply, a lightning arrester could be installed at the input end of the power supply
- As for the signal line outdoors to which the interface modules of Router 3000 series routers are connected, such as an ISDN line or telephone line, a special lightning arrester should be installed at the input end of the signal line to enhance the lightning protection capability.

Workbench Requirements

Whether you install the router in a cabinet or directly place it on the workbench, it is necessary to ensure that:

■There is spacing reserved at the air inlet and outlet in the router so as to facilitate the ventilation of the router cabinet.
■ The cabinet and workbench are firm enough to support the weight of the router and other installation accessories.
■The cabinet and workbench are well grounded.

Inspecting the Router and Accessories

After you verify that the installation conditions comply with these requirements, open the packing case of the router and check the contents against the your order contract. Contact your Service representative if you find any discrepancies.

Installation Equipment To install your router, you will need:

■Tools
Phillips screwdriver
Flat-head screwdriver
ESD-preventive wrist strap and ESD-preventive gloves
Flat-blade screws (used in wall mounting)

■Cables
Ethernet cable
Console cable
AUX cable
Power supply, power cord, and chassis ground wire
Interface cables for the selected interface modules

■Equipment

A router

Ethernet 10/100Base-T Hub or LAN switch

Channel service unit/data service unit (CSU/DSU) or other data communications equipment (DCE) equipment (such as a modem)

Configuration terminal, such as a PC

Additional equipment for the selected interface modules

3

INSTALLING THE ROUTER

There are two ways you can install your router:

■On a vertical surface
■On a workbench

Mounting the Router on a Vertical Surface

The Router 3000 series routers can be mounted onto a vertical surface using 2 pan-head screws and 2 brackets on the base of the router using the following procedure:

1 Mark the bracket positions on the wall.
2 Screw 2 pan-head screws into the marked positions on the wall or the vertical surface, so that the screws match the 2 brackets on the base of the router. Each screw should project 0.6 cm (.25 in) from the wall or the surface.
3 Hang the router on the screws by the two brackets.
4 Make sure that the front panel LEDs are easily visible to the operator
5 Fix the external power supply of the router to prevent the power cords from falling down

See Figure 1 and Figure 2 for illustrations of this procedure.

Figure 1 The Bottom of the Router

Figure 2 Hanging the Router on a Vertical Surface

Installing the Router on a Workbench	To install the router on a workbench, take the following precautions:■Make sure that the workbench is smooth and stable.■Leave a heat-dissipation clearance of 10cm (4in) around the router.■Do not put heavy things on the router.
Connecting the Protection Ground Wire	Properly connect the protection ground (PGND) wire before connecting other cables. Shorten the ground wire as much as possible to avoid the router and the peer device being damaged during lightning.The AC input of the router is connected to an AC noise filter whose neutral point is connected to the chassis directly, that is PGND (protection ground). The chassis must be grounded properly, to improve the router's ability to resist electromagnetic interference. The PGND also provides protection for the external network, to ensure that the PGND wire lets out the lightning current.The grounding point of the chassis is located on the rear panel and is labeled with a grounding label. The grounding resistance should not be greater than 5 ohm. Connect this point to the ground using a grounding wire.
Connecting the Power Cable	External AC power supplies are provided for Router 3000 series routers. The power supplies have the following specifications:■Input: 100 to 240VAC, 50/60Hz, 0.5 to 1 A■Output: 12VDC, 4AConnect the power supply to a 3-core outlet with a neutral point. The neutral point of the outlet should be grounded reliably.To connect the power supply:1 Turn off the power to the router.2 Connect the output end of the power supply to the power socket on the rear panel of the router.3 Connect the input end of the power supply to the AC power outlet.4 Turn on the power switch on the router.5 Confirm that the router has power by checking whether the POWER LED is on.

Figure 3 illustrates the power supply.
Figure 3 Router 3000 Power Supply

Technical line drawing of a mechanical or electrical component assembly (no text or symbols)

To connect the AC power cord:

1 Turn off the power to the router.
2 Connect the output of the power supply to the power input on the rear panel of the router.
3 Insert the input connector of the power supply into an AC power outlet.
4 Turn on the power the power to the router.
5 Confirm that the router has power by checking whether the POWER LED is on.
6 If you repeat this procedure several times and the POWER LED remains off, see Chapter 6, Troubleshooting.

Connecting the Router to the Console Terminal

The Router 3000 series routers provide an EIA/TIA-232 asynchronous serial console port, through which you can configure the router.

The console cable is an 8-core shielded cable. The end that is used to connect to the console port of the router has an RJ-45 connector. The other end of the console cable has both a DB-9 (female) adapter and a DB-25 (female) adapter. Use the appropriate connector for the port on the console terminal.

Figure 4 illustrates the console cable.

Figure 4 Console Cable Assembly

See Appendix A for the pinout details of the console cable.

To configure the router through the console terminal:

1 Turn off power to the router.
2 Select a console terminal — The console port can be either a standard ASCII terminal with an RS-232 serial interface, or a PC.
3 Connect the cable — Turn the power switch off, and then connect the RS-232 serial interface of the console cable to the console port of the router.

After the connection and verification, power on the router. The startup information of the router is displayed on the console terminal.

Connecting the Router to the Ethernet

The Router 3000 series routers provide a fixed 10/100BASE-TX fast Ethernet interface that uses category-5 twisted pair cable, as shown in Figure 5

Figure 5 Ethernet Cable Assembly

The Ethernet cables are classified as straight-through network cable and crossover network cable. They have the following features:

■Straight-through network cable — The sequences of the wires crimped at the RJ-45 connectors of the two ends are the same. The cable is used in the connection between a terminal device, such as a PC or a router, and the Hub or LAN Switch. Straight-through network cables are delivered along with the router.
■Crossover network cable — The sequences of the wires crimped at the RJ-45 connectors of the two ends are different. The cable is used in the connection between the terminal device, such as a PC or a router, and another terminal device. You can create this cable yourself, if necessary.

For the pinouts, identification and making of the two network cables, see Appendix A. Take the following considerations into account before you connect:

■The fixed Ethernet cables are included in the standard configuration of the router.
■ Use shielded cables to ensure electromagnetic compatibility.
■Identify the mark on the module port so you can plug the cable in correctly.
■ When connecting the Ethernet cable to a LAN Switch, plug the cable into the 10/100BASE-T interface marked with MDIX.

To connect the Ethernet cable:

1 Turn off power to the router.
2 Select the Ethernet cable.

When connecting the router with a PC or a router, use the crossover network cable.

When connecting the router to a hub or a LAN switch, use the straight-through network cable.

3 Connect one end of the Ethernet cable to the appropriate Ethernet module on the router.
4 Connect the other end of the Ethernet cable to the Ethernet interface of the Hub or the LAN switch.
5 Verify the connection by checking that the 100M ETH LED on the top of the router is on.

Connecting the Router to the WAN

The Router 3000 series routers provide the following WAN interfaces:

■AUX port (all models)
■ Mutiprotocol synchronous/asynchronous serial port (Router 3012, Router 3013, Router 3015)
■ISDN S/T (Router 3013)
■ISDN U (Router 3015)
■CT1/PRI (Router 3016)

Connecting the AUX Port to the Modem

The auxiliary (AUX) port is an EIA/TIA-232-compliant sync/async serial interface that is used for remote configuration or dial-up backup. To be connected to a remote device, a local modem must be connected to a remote modem through PSTN. For the connection method, see Chapter 4, Booting and Configuring the Router. If the console port fails, the AUX port can also serve as a console port. For AUX port specifications, see Chapter 1, Overview.

The AUX cable is an 8-core shielded cable. One end of the cable has an RJ-45 connector and connects to the AUX port of the router. The other end has both a DB-25 (male) adapter and a DB-9 (male) adapter. Use the appropriate connector for the port on the modem.

Figure 6 illustrates the AUX cable.

Figure 6 AUX Cable Assembly

To connect the AUX cable:

1 Turn off power to the router.
2 Plug the RJ-45 connector of the AUX cable into the AUX port of the router.
3 Connect the DB-25 or DB-9 adapter of the AUX cable to the serial interface of the analog modem.

For pinout details of the AUX cable, see Appendix A.

Connecting the Synchronous/Asynchronous Serial Interface to a CSU/DSU

The synchronous/asynchronous serial interface is usually used to connect a WAN device, such as a modem, and a CSU/DSU. It can operate in synchronous/asynchronous mode and DTE/DCE mode. For the attributes of the interface, see Chapter 1, Overview.

Synchronous and Asynchronous mode

V.35 and V.24 (EIA/TIA-232) standards support synchronous operating mode, while only V.24 (EIA/TIA-232) standard supports the asynchronous operating mode. The maximum transmission distance and baud rate of the signal vary with the operating mode. See Table 1 for the details.

Table 1 Transmission Rate and Transmission Distance of V.24 (EIA/TIA-232)/V.35 Cable

V.24 (EIA/TIA-232) V.35
Baud Rate (bps)	Maximum Transmission Distance (m) Baud Rate (bps)		Maximum Transmission Distance (m)
2400 60 2400 1250
4800 60 4800 625
9600 30 9600 312
19200 30 19200 156
38400 20 38400 78
64000 20 56000 60
115200 10 64000 50
-- 2048000 30

Caution: The baud rate should not exceed 64 Kbps when the V.24 cable operates in synchronous mode.

DTE and DCE mode

The synchronous serial interface can operate in both DTE mode and DCE mode. For two devices connected directly, one device should operate in DTE mode, and the other device should operate in DCE mode. The DCE mode device provides a synchronous clock and specifies the transmission rate, the DTE mode device accepts the synchronous clock and communicates at the specified transmission rate. Usually, the router serves as the DTE device. To determine whether the device is a DTE or a DCE, refer to the user manual for the device. Table 2 helps identify DTE and DCE devices.

Table 2 Typical DTE and DCE

Type of Equipment

Type of Interface

Typical Equipment

DTE male PC or router
DCE female Modem, multiplexer or CSU/DSU

In general, the asynchronous serial interface is connected to a modem or a terminal adapter (TA) to act as the dial-up interface. In this case, it is unnecessary to determine whether the device is DTE or DCE, you must only select the appropriate baud rate.

The synchronous/asynchronous serial interface cable is connected to a DB-50 receptacle. Proper connection cable needs to be selected for the protocol applied.

Nine types of synchronous/asynchronous serial interface cables are available. However, these cables are optional and you must select the proper one based on your requirements when you purchase the router All these types of cables have a DB-50 adapter at the router end.

At the network end, the connector is different for each type of cable, as described in the following list:

■V.24 (EIA/TIA-232) DTE cable — DB-25 (male) adapter
■ V.24 (EIA/TIA-232) DCE cable — DB-25 (female) adapter
■V.35 DTE cable — 34-pin (male) adapter
■V.35 DCE cable — 34-pin (female) adapter
■X.21 DTE cable — DB15 (male) adapter
■X.21 DCE cable — DB15 (female) adapter
■EIA/TIA-449 DTE cable — DB37 (male) adapter
■EIA/TIA-449 DCE cable — DB37 (female) adapter
■EIA-530 DTE cable — DB25 (male) adapter

For the pinouts of these cables, see Appendix A.

The following figures show the assembly of all 9 cable types:

■V.24 DTE Cable Assembly
■V.24 DCE Cable Assembly
■V.35 DTE Cable Assembly
■V.35 DCE Cable Assembly
■X.21 DTE Cable Assembly
■X.21 DCE Cable Assembly
■EIA/TIA-449 DTE Cable Assembly
■EIA/TIA-449 DCE Cable Assembly
■EIA-530 DTE Cable Assembly

Figure 7 V.24 DTE Cable Assembly

Figure 8 V.24 DCE Cable Assembly

Figure 9 V.35 DTE Cable Assembly

Figure 10 V.35 DCE Cable Assembly

Figure 11 X.21 DTE Cable Assembly

Figure 12 X.21 DCE Cable Assembly

Figure 13 EIA/TIA-449 DTE Cable Assembly

Figure 14 EIA/TIA-449 DCE Cable Assembly

Figure 15 EIA-530 DTE Cable Assembly

Use the following procedure to connect the synchronous/asynchronous cable to the SERIAL0 interface and the DSU/CSU device:

1 Turn off power to the router.

Caution: Plugging/unplugging the connectors of the synchronous/asynchronous serial interface online can damage the router or the remote device.

2 Choose the appropriate synchronous/asynchronous cable.
3 Plug the DB-50 adapter of the cable into the SERIAL0 interface of the router.
4 Connect the other end of the cable to the CSU/DSU device. (If the WAN uses a dial-up line, connect the cable to the serial interface of the analog modem. See Connecting the AUX Port to the Modem.)

Connecting to the CT1/PRI Port

The Router 3016 provides a CT1/PRI port that provides CT1 (channelized T1) access and Implements the ISDN PRI function. See CT1/PRI interface attributes.

CT1/PRI cable is a 100 ohm shielded straight-through cable and both ends of which are RJ45 connectors, as shown in Figure 16.

Figure 16 T1 Cable

For pinout details of the T1 cable, see Appendix A.

To connect the T1 cable:

1 Turn off power to the router.

Caution: Identify the mark on the CT1/PRI port. Plugging the connector in incorrectly can cause damage to the router.

2 Insert the connector at one end of the T1 cable into the CT1/PRI port of the router.

3 Insert the connector at the other end of the T1 cable into the corresponding device.

4 Power on the router and verify that T1-LNK LED on the top of the router chassis is lit. If it is off, check the connection cable.

Connecting to the ISDN Port

The Router 3013 router provides an ISDN S/T port, and the Router 3015 router provides an ISDN U port. These routers perform data transfer in 2B+D mode and support both ISDN dial-up and leased line. See for the ISDN interface attributes.

ISDN S/T Cable

The ISDN S/T cable for the Router 3013, shown in Figure 17, is a 4-core twisted pair cable. Both ends of the cable have RJ-45 connectors, of which, 3-pin and 6-pin are sending end, and 4-pin and 5-pin are receiving end.

Figure 17 ISDN S/T Cable

Technical line drawing of a mechanical assembly with no visible text or symbols

ISDN U Cable

The ISDN U cable for the Router 3015 router, shown in Figure 18, is a 2-core twisted pair. One end has an RJ11 connector and the other end has an output terminal (OT) connector.

Figure 18 ISDN U Cable

Technical line drawing of a mechanical assembly with no visible text or symbols

For pinout details of the ISDN cables, see Appendix A.

To connect the ISDN BRI port:

1 Turn off power to the router.

Caution: Identify the router model and the ISDN BRI mark on the port when making the connection. Plugging the connector in incorrectly can cause damage to the router

2 Confirm the type of ISDN line provided by the telecommunications service provider.

3 Connect the cable.

For the Router 3013:

a If the line is ISDN U, use an NT1 adapter. Insert one end of the S/T cable into the S/T port of the NT1, and the other end into the ISDN BRI port of the router.

b If the line is ISDN S/T, insert the cable directly into the ISDN BRI port of the router

For the Router 3015:

a If the line is ISDN S/T, replace your router with a Router 3013.

b If the line is ISDN U interface cable, connect the RJ-45 connector to the ISDN BRI interface of the router, and connect the output terminal (OT) end to the ISDN line through a telephone adapter.

Verifying the Installation

During the installation of the router, you must verify whether the router has been correctly installed by checking the following items:

■ There is enough heat-dissipation clearance around the router, and whether the workbench is stable enough
■Power is connected correctly
■The ground wire of the router is correctly connected
■ The router is connected to other devices, such as the console terminal

BOOTING AND CONFIGURING THE ROUTER

During the initial configuration of the router, you can use only the console or AUX port. This chapter describes how to connect the router to a local or remote console terminal and how to set parameters at the console terminal.

Connecting the Router to a Local Console Terminal

To set up the local configuration environment, connect the RJ-45 connector of the console cable to the console port on the router, and the DB-25 connector or DB-9 connector to the serial interface of a PC, as shown in Figure 1.

Figure 1 Local Configuration Through the Console Port

graph TD
    PC["PC"] --> RS232["RS232 Serial interface"]
    RS232 --> Router["Router 3012"]
    Router --> ConsolePort["Console port"]
    ConsolePort --> ConsoleCable["Console cable"]

Setting the Parameters of the Console Terminal

To set terminal parameters:

1 Start the PC and select Start > Programs > Accessories > Communications > HyperTerminal.
The HyperTerminal window displays the Connection Description dialog box, as shown in Figure 2.
2 Enter the name of the new connection in the Name field and click OK. The Connect To dialog box, shown in Figure 3 displays.
3 Select the serial port for the connection from the Connect using dropdown menu and click OK. The Connection Properties dialog box, shown in Figure 4 displays.

Figure 2 Connection Description Dialog Box

Figure 3 Connect To Dialog Box

Figure 4 Connection Properties Dialog Box

4 Set the following parameters:

Bits per second — 9600

Data bits — 8

Parity — None

Stop bits — 1

Flow control — None.

5 Click OK. The HyperTerminal dialog box displays, as shown in Figure 5.
6 Select Properties. The Properties dialog box for your connection displays.

Figure 5 HyperTerminal Window

7 Click the Settings tab, shown in Figure 6.
8 In the Emulation dropdown menu, select VT100 or Auto detect. Click OK.

Figure 6 Settings Tab

Powering on the Router

Before you power on the router, verify that:

■The connection between the power cord and ground wire is secure
■The voltage of the power supply complies with the requirement of the router
■ The console cable is correctly connected to either the PC or the terminal, and that the settings are correct

Warning: Before switching on the power, locate the power-off switch in the workroom so that, in case of an electrical accident, power can be turned off quickly.

Turn on the power switch of the router.

Checking and operating after power-on

After the router is powered on, verify that:

■The LEDs on the front panel are normal.
For the status of the LEDs during normal operation after power-on, see the LED tables in Chapter 1.
■The console terminal display is normal
For the local configuration, the startup interface on the console terminal displays after the router is powered on. See Startup Process.

For the remote configuration, you must dial up, using HyperTerminal, after the router is powered on, as shown in Figure 7. After the dial up, the startup interface is displayed on the terminal. See Startup Process.

Figure 7 Connect Dialog Box

After the POST, press Enter. When the [3Com] prompt displays, you can configure the router.

Startup Process

After the router starts up, the Boot ROM program runs and the following information displays on the terminal screen:

Booting

****************************************************************************************

* 3Com Router Boot Rom, V4.60

******************************************************************************************

Copyright(C) 2002-2005 by 3Com Corporation, Inc.

Compiled at 20:46:59, Jul 25 2003.

Now testing memory...OK!

64M bytes SDRAM

8192k bytes flash memory

Hardware Version is MTR 0.1

CPLD Version is CPLD 1.0

Bootrom Version is V1.00

Press Ctrl-B to Enter Boot Menu

Note: The contents displayed on the terminal can vary with different versions of Boot ROM.

If you press Ctrl+B immediately, the system displays the Boot Menu. If you do not press Ctrl+B, the system initiates the program decompression process.

Note: After "3Com Router Boot Rom, V4.60" appears, "Booting" disappears.

When the system begins the decompression and initialization process, the screen displays:

Now system is self-decompressing...

System now is starting...

Press ENTER to get started

Press Enter. The system displays the [3Com] prompt, which indicates that the router has entered the system view and you can configure the router.

Configuration Fundamentals of the Router

The configuration process includes the following steps:

1 Clarify your networking requirements. These requirements include:

■The connectivity requirements of the remote sites
■The types of LAN and WAN interfaces required for the network
■The configuration of IP and IP subnet settings and any other protocols
■ The network reliability, management, and security policies

2 Based on your network requirements, draw a clear and integrated networking diagram.

3 Configure the WAN interface of the router:

• Configure the physical operating parameters (the operating mode of the serial interface, baud rate, and synchronous clock) of the interface according to the transmission medium of the WAN. For the dial-up interface, you need to configure DDR parameters.
• Configure the link layer protocol encapsulated on the interface and the related operating parameters according to the type of the WAN.

4 Configure the IP addresses or IPX network number for all the ports of the router according to the division of the subnets.

5 Configure the routes. If you have to start up the dynamic routing protocol, configure the related operating parameters of the protocol.

6 Create the security configuration for the router, as necessary.

7 Create the reliability configuration for the router, as necessary.

SNMP Management

For help managing routers on your network, you can use 3Com Network Supervisor software to discover, map, and display network links and IP devices.

To allow Network Supervisor to monitor your routers, you must first configure SNMP V1 and SNMP Trap support with the following commands:

[3Com] snmp-agent sys-info version v1
[3Com] snmp-agent community read <read-community-string>
[3Com] snmp-agent community write <write-community-string> 

[3Com] snmp-agent trap enable
[3Com] snmp-agent target-host trap address <addr> parameter v1 securityname <security-name-string> 

In this example, is the address of the PC on which you have installed Network Supervisor.

To learn more about Network Supervisor, on the 3Com Corporation World Wide Web site, enter this URL into your Internet browser:

http://www.3com.com/3ns

Command Line Interface

The command line interface of the Router 3000 series routers provides commands to configure and manage the router. The command line interface has the following characteristics:

■Performs the local configuration through the console port.
■ Performs local or remote configuration through the telnet command, which can be used to log on directly and manage other routers.
■Implements the configuration on the router through the terminals (the asynchronous interface, including those connected to the AUX port and AS port) in the dumb terminal mode.
■Configures the hierarchical user protection (guest, operator, administrator). Only administrator users are authorized to configure and manage the routers.
■Online help, available by typing? at any time.

■ Provides network diagnostic tools, such as Tracert and Ping, to quickly diagnose the availability of the network.
■Provides detailed debugging information to diagnose network faults.
■The command line interpreter adopts fuzzy search for the keywords of the command. A conflict-free keyword if entered, will be interpreted accordingly. For example, for a display command, you can enter dis.

To facilitate the management of the router in the system view, all the commands are grouped. Each group corresponds to a view. Users can use these commands to switch between different views. Many commands are limited to use in a single view. Other commands (such as ping, display current-configuration, interface) can be executed in all views.

5

MAINTAINING THE ROUTER

Software Maintenance

There are three types of files that the Router 3000 routers manage:

■BootROM program files
■Application files
■Configuration files

Software maintenance for the router consists of upgrade, upload, and download of configuration files and application files. This chapter introduces some of the configuration methods.

Boot Menu The Boot menu is used during software maintenance of the router. Create a configuration environment (see Configuration Fundamentals of the Router in Chapter 4) and boot the router. The terminal screen displays the following information:

Booting

* R3000 Boot Rom, V4.60

******************************************************************************************

Copyright(C) 2002-2005 by 3Com Corporation, Inc. Compiled at 20:46:59, Jul 25 2003.

Now testing memory...OK!

64M bytes SDRAM

8192k bytes flash memory

Press Ctrl-B to Enter Boot Menu

If you do not press Ctrl+B within 5 seconds, the system begins the decompression process. To access the Boot menu after the router begins the program decompression process, you must restart the router.

If you press Ctrl+B within 5 seconds, the system prompts you for the BootROM password:

Please input bootrom password :

Enter the Boot ROM password, if there is one, and press Enter. The system will enter the Boot menu. The following information displays:

Boot Menu:

1: Download application program with XMODEM
2: Download application program with TFTP
3: Clear application password
4: Clear configuration
5: Start up and ignore console configuration
6: Download Boot ROM ALL with XMODEM
7: Restore Boot ROM from FLASH
8: Backup Boot ROM from FLASH
9: Exit and reboot

Enter your choice(1-9):

The Boot menu provides two methods for upgrading the applications. See Downloading Applications with the Xmodem Protocol and Downloading Applications with the TFTP Protocol.

Caution: When you upgrade application programs, verify and match the version of the Boot ROM software to the version of the main software.

Downloading Applications with the Xmodem Protocol

If you upgrade software applications by downloading them with the Xmodem protocol, you can use the console port rather than building up another configuration environment.

Use the following process to download applications with the Xmodem protocol:

1 Enter the Boot menu.
2 Press 1 to select the Download application program with Xmodem. The router provides the following download speed options:

Downloading application program from serial ...

Please choose your download speed:

1: 9600 bps

2: 19200 bps

3: 38400 bps

4: 57600 bps

5: 115200 bps

6: Exit and reboot

Enter your choice(1-6):

3 Select the appropriate download speed. The router displays information based on your selection, for example:

Download speed is 115200 bps. Change the terminal's speed to 115200 bps, and select Xmodem protocol. Press ENTER key when ready.

4 Change the baud rate at the console terminal (refer to Figure 4-6) to make it consistent with your selection in Step 3.

To allow the new baud rate to take effect, you must disconnect the terminal and reconnect it.

5 Press Enter to begin the download. The system displays the following prompt:

Downloading ... CCCCC

6 Select Transmit/Send file in the terminal window.

7 Select Browse in the Send File dialog box, shown in Figure 1, and select the application you want to download.

Figure 1 Send File Dialog Box

8 In the Protocol dropdown menu, select Xmodem.

9 Click Send. The system displays the Xmodem file send dialog box, shown in Figure 2.

Figure 2 Xmodem File Send Dialog Box

After the download is complete, the system begins the operation of writing to Flash memory, after which, the following information will be displayed in the terminal interface, indicating that the download is completed:

Download completed.

Writing to flash memory...

Please wait, it needs a long time (about 5 min).

######

Write Flash Success

Please return to 9600 bps. Press ENTER key to reboot the system.

10 Restore the baud rate of the console terminal to 9600bps and repeat the disconnecting and reconnecting of the terminal.

Downloading BootROM with the Xmodem Protocol

To upgrade the Boot ROM by downloading it with Xmodem:

1 Power on the router to implement the self-tests, and press Ctrl+B within 5 seconds of the prompt that tells you to do so.

2 Enter the Boot ROM password at the prompt:

Please input bootrom password:

The terminal displays the following menu:

Boot Menu:

1: Download BootRom program
2: Modify BootRom password
3: Reboot

Enter your choice(1-3):

3 Enter 1 and use the same procedure as for downloading application with Xmodem, continuing with Step 3 in Downloading Applications with the Xmodem Protocol.

Downloading Applications with the TFTP Protocol

TFTP Server software is not provided with your Router 3000 series router but you can download a free copy from:

ftp://ftp.3com.com/pub/utilbin/win32/3ts01_04.exe

To download application upgrades with the TFTP protocol, you must create the configuration shown in Figure 3.

Figure 3 TFTP Upgrade Environment

graph TD
    A["PC (TFTP Server) 10.110.10.13"] --> B["LAN"]
    C["Router 3012 10.110.10.10"] --> B
    B --> D["Console port (TFTP Client)"]
    B --> E["Console cable"]
    style B fill:#f9f,stroke:#333

To create the TFTP upgrade configuration:

1 Connect the ETHERNET port to a PC through a crossover network cable.
2 Connect the console port of the router to an external console terminal and configure HyperTerminal. See Setting the Parameters of the Console Terminal.
3 Install the TFTP Server on the PC.
4 Copy the new application files to a path that is assumed to be C:\R3000.
5 Configure the IP address for the Ethernet port on the PC, and assume that the address is 10.110.10.13.
6 Start the TFTP Server on the PC. The TFTP dialog box displays, as shown in Figure 4.

Figure 4 TFTP Server Dialog Box

7 Depending on your TFTP server interface, click on the icon or button, such as Options in Figure 4 to set the path for the application on your system.

To configure the router:

1 Enter the TFTP configuration status.

2 Boot the router and press N quickly when Booting displays on the screen. The following information displays on the terminal interface:

(M)odify any of router configuration or (C)ontinue? [M]

3 Press Enter. The following information displays:

For each of the following questions, you can press to select the value shown in braces, or you can Enter a new value. NETWORK INTERFACE PARAMETERS:

4 Configure the network interface parameters for the router, including the interface to be used, its IP address, and subnet mask.

Do you want a LAN interface? [N] y This board's LAN IP address? [169.254.10.10]10.110.10.10 Subnet mask for LAN (0 for none)? [255.255.0.0] TFTP SERVER PARAMETERS: Configure the TFTP Server parameters, including IP address of the Ethernet interface on the PC, file name of the application program, CPU delay time and so on. IP address of the TFTP server? [169.254.75.166]10.110.10.13 What is the name of the file to be loaded and started? [m8241ram.arj] How long (in seconds) should CPU delay before starting up? [5]

As you configure these parameters, set the values so that:

■The IP address of the TFTP server is the IP address of the PC connected to the Ethernet port on the router.
■The IP address and subnet mask are the same as the IP address and subnet mask of the LAN0 port.
- The IP addresses of the PC network interface and the LAN0 port of the router reside on the same segment.

After you enter the last parameter, the following information displays and you can verify that the parameters are set correctly.

NETWORK INTERFACE PARAMETERS:
IP address on LAN is 10.110.10.10
LAN interface's subnet mask is 0xffff0000
HARDWARE PARAMETERS:
Processor type is MPC8241
Internal Clock Rate 200 Mhz
External Clock Rate 100 Mhz
Serial channels will use a baud rate of 9600
TFTP SERVER PARAMETERS:
IP address of the TFTP host is 10.110.10.13
The file to download and start is m8241ram.arj
After board is reset, start-up code will wait 5 seconds

(M)odify any of this or (C)ontinue? [M]C 

5 Enter C to confirm this configuration or M to modify any of the parameter settings.

To enter the Boot menu:

1 Boot the system normally.
2 Press Ctrl+B within 5 seconds of the prompt that tells you to do so.
3 Enter the BootROM password, if necessary.
4 Enter 2 at the Boot menu, and select to download the application program through TFTP. The following information displayS:

Please start TFTP server then press ENTER key to get started

5 If the PC running TFTP Server is ready, press Enter to begin loading the program.

Starting the TFTP download...

TFTP download completed...
read len=[03713478]
Writing program code to FLASH...
Please waiting, it needs a long time (about 5 min)
###
Write Flash Success.
Press ENTER key to reboot the system. 

6 After the loading, press to reboot the router.

Uploading and Downloading Applications and Configuration Files Using FTP

Uploading files involves transferring them from a PC running the FTP client to a router running the FTP server, through the router's Ethernet interface. This is called a put operation.

Downloading files involves transferring them from the FTP server on the router, through its Ethernet port, to the PC running the FTP client. This is called a get operation. All FTP clients, including local and remote users, who are connected to a router can upload and download if they pass user authentication.

To transfer files using FTP, you must create the appropriate configuration, as shown in Figure 5 and Figure 6, and described in the following procedures.

Figure 5 Creating a Local FTP Upload/Download Configuration

graph LR
    A["10.110.10.13"] --> B["LAN"]
    C["10.110.10.10"] --> D["Router 3012 (FTP Server)"]
    B --> E["Ethernet port"]

PC (FTP Client)

To create a local FTP upload/download configuration:

1 Connect the PC to any of the Ethernet ports on the router.
2 Configure the IP address for the Ethernet port on the router. The default IP address is 10.110.10.10.
3 Configure the IP address of the Ethernet port on the PC. The default IP address is 10.110.10.13.
The IP addresses of the PC network port and of the router's Ethernet port must be on the same segment.
4 Copy the application program files to a path, the default is C:\version.

Figure 6 Creating a Remote FTP Upload/Download Configuration

graph LR
    A["Router 3012 (FTP Server)"] --> B["WAN"]
    B --> C["Router 3012"]
    C --> D["PC (FTP Client)"]

To create a remote FTP upload/download configuration:

1 Connect the PC to any port on the router through a WAN. This procedure does not require that the IP address of the PC and that of the router be on the same segment and is used for remote upgrading routers.
2 Copy the application program files or configuration files to a path, the default is C:\version.

To start the FTP server on the router and to set the user name and password, you should work with the maintenance personnel at the router site. All FTP client programs can use the username and password to log on to the FTP server.

To start the FTP server and set the user name and password:

1 Set the authentication mode:

2 [3Com] aaa-enable

3 [3Com] aaa authentication-scheme login default local

4 [3Com] aaa accounting-scheme optional

5 Add the user name and password:

[3Com] local-user user password simple 123 service-type ftp where user is the user name and 123 is the password.

6 Start the FTP server:

[3Com] ftp-server enable

To upload or download an application program file or configuration file:

1 In DOS mode, enter the path where the application or configuration files are located.

2 Execute the FTP command and set up the FTP connection with the router. For example:

C:\version\ftp 10.110.10.10

If the connection is set up, the following information displays:

Connected to 10.110.10.10 220 FTP server ready on R3000 at User(10.110.10.10:(none)):

3 Use the username and password that have already been set on the router to log on to the FTP server.

User(10.110.10.10:(none)): user 331 Password required for ftp Password: 230 User ftp logged in ftp>

The appearance of the ftp> prompt indicates that you can begin the upload or download operation.

During the upload and download operation, the default name of the router's application program is SYSTEM. Configurations file are named CONFIG by default.

4 To upload the application or configuration files, enter the appropriate path and file name at the following prompts:

ftp>put
local file
remote file 

After the uploading is completed, the ftp> DOS prompt displays again.

5 Enter dir to display the name and size of the file on the router. If the upload is successful, the sizes of the file on the router and on the PC will be the same.

6 To download the application or configuration files, enter the appropriate path and file name at the following prompts:

ftp>get
local file
remote file
After the upload or download is complete, exit the FTP client program:
ftp>quit 

Creating a New Router Password If the router's Boot ROM password or user password is lost, use the following procedure:

1 Boot the router.
2 Press Ctrl+B within 5 seconds of the prompt that tells you to do so.

3 Enter 3 when prompted for your choice:

Boot Menu:
1: Download application program with Xmodem
2: Download application program with TFTP
3: Clear application password
4: Clear configuration
5: Start up and ignore Console configuration
6: Exit and reboot
Enter your choice(1-6):3 

4 When the Boot menu is shown again, enter 6 to exit the Boot menu and run the router's main software.

5 Press Enter in the system view to enter the user password directly.

[3Com] local-user user password simple service-type exec-administrator 123 

In this example, user indicates the user name, 123 indicates the new user password.

[R3000] quit
[R3000] save 

6 Execute the save command after modifying the user password to save the change.

If the Boot ROM password for the router is lost, contact your Service representative.

Maintaining Router Hardware

In preparation for the maintenance of your router hardware, collect and have ready the following tools:

■Phillips screwdriver
■ESD-preventive wrist strap and ESD-preventive glove
■Static shielding bag

■Chip extractor

Caution: Observe the following precautions when maintaining your router hardware:

■There is a seal on one of the screws on the chassis of the Router 3000 routers. When the Service representative performs maintenance on the router, the seal is must be intact. Contact your Service representative before you open the chassis.
- Replace the hardware of router sensibly and in a proper way under the guidance of the technical support personnel.
■Confirm that all power supplies have been disconnected from the router while performing the hardware maintenance. Otherwise, the operator may get injured through an electric shock.
■ Wear an ESD-preventive wrist strap and ESD-preventive gloves during the hardware maintenance for the router and ensure that the strap makes a good skin contact.
■For the device to operate normally, use only the SDRAM provided by 3Com Corporation.

Opening the Cover of Router Chassis

Use the following procedure to open the router chassis cover:

1 Turn off the power to router and remove the power cord.
2 Remove all port cables on the back panel of the router. Do not remove the PGND cable.
3 Place the router upside down on your work surface. Remove the screws on the bottom of the chassis with the Phillips screwdriver and set them aside.
4 Turn the router right side up, with the rear panel toward you.
5 Remove the captive screws on the rear panel with the Phillips screwdriver and set them aside.
6 Raise the chassis cover until it is free of the bottom of the router, and put it to one side.

Figure 7 Removing the Screws from the Bottom of the Router Chassis

Line drawing of a server rack with ventilation slots and a screwdriver inserted (no text or symbols)

Replacing the Boot ROM

When a Boot ROM is damaged or when data that becomes corrupted because of a software failure and cannot be corrected, it should be replaced.

Router 3000 Boot ROMs are located at the same position on the mainboard, as shown in.

Figure 8 Boot ROM Location

Caution: Use a chip extractor to replace the Boot ROM.

To replace the Boot ROM:

1 Insert the top end of the chip extractor into the Boot ROM socket, turn inward slightly, withdraw the extractor upward and lift the Boot ROM out.
2 Put the Boot ROM into the static shielding bag.
3 Insert the end of the chip extractor into the socket of the new Boot ROM.
4 Position the Boot ROM so that the beveled edge of the socket matches the beveled edge on the Boot ROM and plug it into the Boot ROM socket.

Caution: Be careful not to damage or bend the pins at the bottom of the Boot ROM. If the pins are bent, straighten them with needle-nose pliers.

Closing the Router Chassis Cover

To prevent cables from being pressed or cut off when you close the cover of the router chassis, roll up all the cables and put them into the chassis before closing the cover.

6

TROUBLESHOOTING

The Power LED is Off. If the power LED is off, verify that:

■The power switch of the router is turned on.
■The power supply switch is turned on.
■The power cord of the router is connected properly.
■The power supply suits the requirement of the router.

Caution: Do not plug in or unplug the power cord when the power is on. After having checked the conditions in the previous list, if the power LED is still off, contact your Service representative.

Nothing is Displayed on the Terminal after Power-On

After the system runs the power-on self-test (POST), if the system operates normally, the start-up information is displayed on the console terminal. If the configuration system has a fault, the terminal may display nothing.

If the terminal does not display any information after the power-on self-test, verify that:

■The power system is normal.
■The console cable is connected correctly.

If the power system is normal and the console cable is connected properly, there may be something wrong with the console cable or the HyperTerminal parameters. Check the cable or the parameters.

HyperTerminal parameters should have the following values:

■Baud — 9600
■Data bits — 8
■Stop bit — 1
■Parity — None
■Flow control — None
■Terminal emulation — VT100

If the parameter settings do not match these values, reconfigure them.

If the previous checks do not solve the problem, contact your Service representative and follow the representative's instructions.

Illegible Characters Display on the Terminal after Power-On

If the system operates normally after the system runs the power-on self-test (POST), the start-up information is displayed on the console terminal. If the configuration system has a fault, the terminal may display only illegible characters.

If the console terminal displays illegible characters after the POST, verify that the HyperTerminal parameters are set properly, as follows:

■Baud: 9600
■Data bits: 8
■Stop bit: 1
■Parity: None
■Flow control: None
■Terminal emulation: VT100

If the parameter settings do not match these values, reconfigure them.

OPTIONAL CABLE SPECIFICATIONS

The tables in this appendix describe the pinouts for the cables that you can use with Router 3000 series routers. Pins that are not described in the following tables are not connected.

Console Cable

Table 1 describes the Console cable pinouts.
Table 1 Console Cable Pinouts

RJ-45	Signal Direction	DB-25	DB-9	Signal
1 → 5 8 CTS
2 → 6 6 DSR
3 → 3 2 RXD
4 <— 8 1 DCD
5 - 7 5 GND
6 <— 2 3 TXD
7 <— 20 4 DTR
8 <— 4 7 RTS

AUX Cable

Table 2 describes the AUX cable pinouts.
Table 2 AUX Cable Pinouts

RJ-45	Signal Direction	DB-25	DB-9	Signal
1 → 4 7 RTS
2 → 20 4 DTR
3 → 2 3 TXD
4 <— 8 1 DCD
5 - 7 5 GND
6 <— 3 2 RXD
7 <— 6 6 DSR
8 <— 5 8 CTS

Ethernet Cable

The Ethernet cable uses an RJ-45 connector and category 5 twisted pair cable.

Table 3 describes straight-through network cable pinouts.

Table 3 Straight-through Network Cable Pinouts

RJ-45 Signal		Category 5 twisted pair	Signal Direction	RJ-45
1 TX+ White (Orange) —> 1
2 TX- Orange —> 2
3 RX+ White (Green) <— 3
4 -	Blue -	4
5	-	White (Blue)	-	5
6	RX-	Green	<—	6
7	-	White (Brown)	-	7
8 -	Brown	-	8

Table 4 describes crossover network cable pinouts.

Table 4 Crossover Network Cable Pinouts

RJ-45	Signal	Category 5 Twisted Pair	Signal Direction	RJ-45
1 TX+ White (Orange) —>3
2 TX- Orange —>6
3 RX+ White (Green) <— 1
4 -	Blue -	4
5	-	White (Blue)	-	5
6	RX-	Green	<—	2
7	-	White (Brown)	-	7
8 -	Brown	-	8

You can use Table 4 as a reference while distinguishing or preparing the two kinds of Ethernet cables. While preparing the Ethernet cables, follow the chromatogram given in this table to arrange the wires. Otherwise, communication quality will be affected even though the equipment at two ends is connected.

Serial Interface Cable

V.24 (EIA/TIA-232) DTE Cable Pinouts

Table 5 describes V.24 (EIA/TIA-232) DTE cable pinouts. Table 5 V.24 (EIA/TIA-232) DTE Cable Pinout

DB-50	Signal	Signal Direction	DB-25	Signal
5 TxD/RxD —> 2	TxD
27 RxD/TxD <—	3 RxD
2 RTS/CTS —> 4	RTS
31 CTS/RTS <—	5 CTS
6 DSR/DTR <—	6 DSR
30 DCD/LL <—	8 DCD
3	TxC/NIL	<—	15	TxC
28 RxC/TxCE	<— 17 RxC
1 LL/DCD —> 18	LTST
26 DTR/DSR —>	20 DTR
4	TxCE/TxC	—>	24	TxCE
50	GND	-	1	Shield_GND
7	GND	-	7	Circuit_GND

V.24 (EIA/TIA-232) DCE Cable Pinouts

Table 6 describes V.24 (EIA/TIA-232) DCE cable pinouts. Table 6 V.24 (EIA/TIA-232) DCE Cable Pinouts

DB-50	Signal	Signal Direction	DB-25	Signal
5 TxD/RxD —> 3	RxD
27 RxD/TxD <—	2 TxD
2 RTS/CTS —> 5	CTS
31 CTS/RTS <—	4 RTS
26 DTR/DSR —>	6 DSR
1 LL/DCD —> 8	DCD
4	TxCE/TxC	—>	15	TxC
29 NIL/RxC	—> 17 RxC
30 DCD/LL <—	18 LTST
6 DSR/DTR <—	20 DTR
28	RxC/TxCE	<—	24	TxCE
50	GND	-	1	Shield_GND
7	GND	-	7	Circuit_GND

V.35 DTE Cable Pinouts

Table 7 describes V.35 DTE cable pinouts.

Table 7 V.35 DTE Cable Pinouts

DB-50	Signal	Signal Direction	34PIN	Signal
2 RTS/CTS → C RTS
31 CTS/RTS <— D	CTS
6 DSR/DTR <— E	DSR
30	DCD/LL	<—	F	RLSD
26 DTR/DSR → H	DTR
1	LL/DCD	→	K	LT
15	TxD/RxD+	→	P	SD+
39	TxD/RxD-	→	S	SD-
20	RxD/TxD+	<—	R	RD+
44	RxD/TxD-	<—	T	RD-
16	TxC/E/TxC+	→	U	SCTE+
40	TxC/E/TxC-	→	W	SCTE-
19	RxC/TxC/E+	<—	V	SCR+
43	RxC/TxC/E-	<—	X	SCR-
18	TxC/RxC+	<—	Y	SCT+
42	TxC/RxC-	<—	AA	SCT-
50	GND	-	A	Shield_GND
7	GND	-	B	Circuit_GND
24	RxD-REST	GND	-	-
49	RxC-REST	GND	-	-
25	TxC-REST	GND	-	-

V.35 DCE Cable Pinouts

Table 8 describes V.35 DCE cable pinouts.

Table 8 V.35 DCE cable Pinouts

DB-50	Signal	Signal Direction	34PIN	Signal
31	CTS/RTS	<—	C	RTS
2	RTS/CTS	—>	D	CTS
26	DTR/DSR	—>	E	DSR
1	LL/DCD	—>	F	RLSD
6	DSR/DTR	<—	H	DTR
30	DCD/LL	<—	K	LT
20	RxD/TxD+	<—	P	SD+
44	RxD/TxD-	<—	S	SD-
15	TxD/RxD+	—>	R	RD+
39	TxD/RxD-	—>	T	RD-
19	RxC/TxCE+	<—	U	SCTE+
43	RxC/TxCE-	<—	W	SCTE-
17	NIL/RxC+	→	V	SCR+
41	NIL/RxC-	→	X	SCR-
16	TxC/E/TxC+	→	Y	SCT+
40	TxC/E/TxC-	→	AA	SCT-
50 GND - A Shield_GND
7 GND - B Circuit_GND
24 RxD-REST GND --
49 RxC-REST GND --
25	TxC-REST	GND	-	-

X.21 DTE Cable Pinouts

Table 9 describes X.21 DTE cable pinouts.

Table 9 X.21 DTE Cable Pinouts

DB50	Signal	Signal Direction	Signal	DB15
7	GND	<-->	Circuit GND	8
23	DTE/DCE	-	Circuit GND	8
50	GND	<-->	Shield GND	1
10	RTS/CTS+	->	Control+	3
34	RTS/CTS-	->	Control-	10
38	CTS/RTS+	<-	Indication+	5
14	CTS/RTS-	<-	Indication-	12
20	RXD/TXD+	<-	Receiver+	4
44	RXD/TXD-	<-	Receiver-	11
15	TXD/RXD+	->	Transmit+	2
39	TXD/RXD-	->	Transmit-	9
19	RXC/TXCE+	<-	Timing+	6
43	RXC/TXCE-	<-	Timing-	13
-	Shielding sheath	<-->	Shielding sheath	-

X.21 DCE Cable Pinouts

Table 10 describes X.21 DCE cable pinouts.

Table 10 X.21 DCE Cable Pinouts

DB50	Signal	Signal Direction	Signal	DB15
7	GND	<-->	Circuit GND	8
50	GND	<-->	Shield GND	1
10	RTS/CTS+	->	Indication+	5
34	RTS/CTS-	->	Indication-	12
38	CTS/RTS+	<-	Control+	3
14	CTS/RTS-	<-	Control-	10
2044 RXD/TXD- <- Transmit- 9	RXD/TXD+	<-	Transmit+	2
15 TXD/RXD+ -> Receiver+ 4
39 TXD/RXD- -> Receiver- 11
16 RXC/TXCE+ -> Timing+ 6
40 RXC/TXCE- -> Timing- 13
-	Shielding sheath	<-->	Shielding sheath	-

EIA/TIA-449 DTE Cable Pinouts

Table 11 describes EIA/TIA-449 DTE cable pinouts.

Table 11 EIA/TIA-449 DTE Cable Pinouts

DB50	Signal	Signal Direction	Signal	DB37
7	GND	<-->	Circuit GND	19
23	DTE/DCE	-	Circuit GND	19
50	GND	<-->	Sield GND	1
8	DTR/DSR+	->	TR+	12
32	DTR/DSR-	->	TR-	30
13	DSR/DTR+	<-	DM+	11
37	DSR/DTR-	<-	DM-	29
10	RTS/CTS+	->	RS+	7
34	RTS/CTS-	->	RS-	25
38 CTS/RTS+ <- CS+ 9
14 CTS/RTS- <- CS- 27
36 DCD/DCD+	<- RR+	13
12 DCD/DCD-	<- RR-	31
1	LL/LL	->	LL	10
20	RXD/TXD+	<-	RD+	6
44	RXD/TXD-	<-	RD-	24
15	TXD/RXD+	->	SD+	4
39	TXD/RXD-	->	SD-	22
16	TXCE/RXC+	->	TT+	17
40	TXCE/RXC-	->	TT-	35
19	RXC/TXCE+	<-	RT+	8
43	RXC/TXCE-	<-	RT-	26
18 TXC/NIL+ <- ST+ 5
42	TXC/NIL-	<-	ST-	23
-	Shielding sheath	<-->	Shielding sheath	-

EIA/TIA-449 DCE Cable Pinouts

Table 12 describes EIA/TIA-449 DCE cable pinouts.

Table 12 EIA/TIA-449 DCE Cable Pinouts

DB50 Signal Signal	Direction Signal	DB37
7	GND	<-->	Circuit GND	19
50 GND <--> Shield	GND 1
8	DTR/DSR+	-->	DM+	11
32	DTR/DSR-	-->	DM-	29
13	DSR/DTR+	<-	TR+	12
37	DSR/DTR-	<-	TR-	30
10	RTS/CTS+	-->	CS+	9
34	RTS/CTS-	-->	CS-	27
38	CTS/RTS+	<-	RS+	7
14	CTS/RTS-	<-	RS-	25
36 DCD/DCD+ <-	RR+	13
12	DCD/DCD-	<-	RR-	31
20	RXD/TXD+	<-	SD+	4
44	RXD/TXD-	<-	SD-	22
15	TXD/RXD+	-->	RD+	6
39	TXD/RXD-	-->	RD-	24
16	TXCE/RXC+	<-	RT+	8
40	TXCE/RXC-	<-	RT-	26
19	RXC/TXCE+	<-	TT+	17
43	RXC/TXCE-	<-	TT-	35
17	NIL/TXC+	<-	ST+	5
41	NIL/TXC-	<-	ST-	23
-	Shielding sheath	<-->	Shielding sheath	-

EIA-530 DTE Cable Pinouts

Table 13 describes EIA-530 DTE cable pinouts.

Table 13 EIA-530 DTE Cable Pinouts

DB50 Signal Signal	Direction Signal	DB25
7 GND <--> Circuit	GND 7
23	DCE/DTE	-	Circuit GND	7
50 GND <--> Shield	GND 1
8	DTR/DSR+	->	DTR+	20
32	DTR/DSR-	->	DTR-	23
13	DSR/DTR+	<-	DSR+	6
37	DSR/DTR-	<-	DSR-	22
10	RTS/CTS+	->	RTS+	4
34	RTS/CTS-	->	RTS-	19
38	CTS/RTS+	<-	CTS+	5
14	CTS/RTS-	<-	CTS-	13
36 DCD/DCD+ <-	DCD+	8
12	DCD/DCD-	<-	DCD-	10
DB50	Signal	Signal Direction	Signal	DB25
1 LL/LL -> LL 18
20 RXD/TXD+ <- RXD+ 3
44 RXD/TXD- <- RXD- 16
15 TXD/RXD+ -> TXD+ 2
39 TXD/RXD- -> TXD- 14
16	TXCE/RXC+	->	TXCE+	24
40	TXCE/RXC-	->	TXCE-	11
19 RXC/TXCE+ <- RXC+ 17
43	RXC/TXCE-	<-	RXC-	9
18	TXC/NIL+	<-	ST+	15
42	TXC/NIL-	<-	ST-	12
-	Shielding sheath	<-->	Shielding sheath	-

T1 Cable

Table 14 describes T1 cable pinouts.
Table 14 T1 Cable Pinouts

RJ-45	Straight-through Shielded Network Cable	Signal	Description	RJ-45
1	White (Orange)	Rx	Ring	1
2	Orange	Rx	Tip	2
3	White (Green)	-	-	3
4	Blue	Tx	Ring	4
5	White (Blue)	Tx	Tip	5
6	Green -	-	6
7	White (Brown)	-	-	7
8	Brown -	-	8

ISDN Cable

ISDN S/TInterface Cable Pinouts

Table 15 describes ISDN S/T interface cable pinouts.
Table 15 ISDN S/TInterface Cable Pinouts

RJ45	Signal	RJ45
1	-	1
2	-	2
3	Tx+	3
4	Rx+	4
5	Rx-	5
6	Tx-	6
7	-	7
8	-	8

ISDN U Interface Cable Pinouts

Table 16 describes ISDN U interface cable pinouts.

Table 16 ISDN U Interface Cable Pinouts

RJ45 Signal
1	-
2	-
3	-
4 Ring
5 Tip
6	-
7	-
8	-

TECHNICAL SUPPORT

3Com provides easy access to technical support information through a variety of services. This chapter describes these services.

Information contained in this chapter is correct at time of publication. For the most recent information, 3Com recommends that you access the 3Com Corporation World Wide Web site.

Online Technical Services

3Com offers worldwide product support 24 hours a day, 7days a week, through the following online systems:

■World Wide Web site
■3Com Knowledgebase Web Services
■3Com FTP site

World Wide Web Site

To access the latest networking information on the 3Com Corporation World Wide Web site, enter this URL into your Internet browser:

http://www.3com.com/

This service provides access to online support information such as technical documentation and software library, as well as support options that range from technical education to maintenance and professional services.

3Com Knowledgebase Web Services

The 3Com Knowledgebase is a database of technical information to help you install, upgrade, configure, or support 3Com products. The Knowledgebase is updated daily with technical information discovered by 3Com technical support engineers. This complimentary service, which is available 24 hours a day, 7 days a week to 3Com customers and partners, is located on the 3Com Corporation World Wide Web site at:

http://www.knowledgebase_3com.com/

3Com FTP Site

Download drivers, patches, software, and MIBs across the Internet from the 3Com public FTP site. This service is available 24 hours a day, 7 days a week.

To connect to the 3Com FTP site, enter the following information into your FTP client:

Hostname: ftp.3com.com

Username: anonymous

Password:

Note: You do not need a user name and password with Web browser software such as Netscape Navigator and Internet Explorer.

Support from Your Network Supplier	If you require additional assistance, contact your network supplier. Many suppliers are authorized 3Com service partners who are qualified to provide a variety of services, including network planning, installation, hardware maintenance, application training, and support services.When you contact your network supplier for assistance, have the following information ready:■ Product model name, part number, and serial number■ A list of system hardware and software, including revision levels■Diagnostic error messages■Details about recent configuration changes, if applicableIf you are unable to contact your network supplier, seeSupport from 3Com for instructions on how to contact 3Com.
Support from 3Com	If you are unable to obtain assistance from the 3Com online technical resources or from your network supplier, 3Com offers email and telephone technical support services. To find out more about your support options, email or call the 3Com technical support services at the location nearest you.
Email Support	Some 3Com regions offer an email support service. To access this service for your region, use the appropriate URL or email address from the list below.Asia, Pacific RimFrom this region, email:[e-mail], Middle East and AfricaEnter the URL:http://emea.3com.com/support/email.htmlLatin AmericaSpanish speakers, enter the URL:http://lat.3com.com/lat/support/form.htmlPortuguese speakers, enter the URL:http://lat.3com.com/br/support/form.htmlEnglish speakers, email:[e-mail]

Telephone Support

When you contact 3Com for assistance, have the following information ready:

■Product model name, part number, and serial number
■ A list of system hardware and software, including revision levels
■Diagnostic error messages
■ Details about recent configuration changes, if applicable

Table 1 provides a list of worldwide technical telephone support numbers. These numbers are correct at the time of publication. Refer to the 3Com Web site for updated information.
Table 1 Telephone Support Numbers

Country	Telephone Number	Country	Telephone Number
Asia, Pacific Rim		Europe, Middle East and Africa
Australia	1 800 678 515	From anywhere in these regions, call:	[phone] phone
India	[phone] or 000800 6501111
Indonesia	001 803 61 009
Malaysia	1800 801 777	Austria	01 7956 7124
New Zealand	0800 446 398	Belgium (Flemish)	070 700 000
Pakistan	[phone]	Belgium (French)	070 700 770
Philippines	1235 61 266 2602 or [phone]	Denmark	7010 7289
Singapore	800 6161 463	Finland	01080 2783
S. Korea	00798 611 2230 or 02 3455 6455	France	0825 809 622
Taiwan	0080 611 261	Germany	01805 404 747
Thailand	001 800 611 2000	Hungary	06800 14466
		Ireland	1800 509359
		Israel	1800 943 2632
		Italy	199 161346
		Luxembourg	800 29880
		Netherlands	0900 777 7737
		Norway	815 33 047
		Poland	00800 441 1357
		Portugal	707 200 123
		South Africa	0800 991196
		Spain	9 021 60455
		Sweden	07711 14453
		Switzerland	08488 50112
		U.K.	0870 241 3901
Latin AmericaFrom the Caribbean, Central and SouthAmerica, call:AntiguaArgentinaArubaBahamasBarbadosBelizeBermudaBonaireBrazilCaymanChileColombiaCosta RicaCuracaoEcuadorDominicanRepublicGuatemalaHaitiHondurasJamaicaMartiniqueMexicoNicaraguaPanamaParaguayPeruPuerto RicoSalvadorTrinidad and TobagoUruguayVenezuelaVirgin Islands		North America: 1 800	876 3266
	1 800 988 21120 810 444 3COM1 800 998 21121 800 998 21121 800 998 211252 5 201 00101 800 998 21121 800 998 21120800 13 3COM1 800 998 2112AT&T [phone]AT&T [phone]AT&T [phone] 998 2112AT&T [phone]AT&T [phone] 657 0888AT&T [phone] 998 2112571 657 088801 800 849 CAREAT&T [phone]AT&T [phone] 4894 1888AT&T [phone] 998 2112AT&T [phone] 998 2112AT&T [phone]AT&T [phone] 657 0888

Returning Products for Repair

Before you send a product directly to 3Com for repair, you must first obtain an authorization number. Products sent to 3Com without authorization numbers will be returned to the sender unopened, at the sender's expense.

You can obtain an authorization number (called an RMA) by entering the following URL into your Internet browser:

http://www.3com.com/support/en_US/repair

Alternatively, you can obtain an RMA by calling or faxing one of the numbers in Table 2.

Table 2 Fax Numbers for Return Authorization Numbers

Country Telephone Number	Fax Number
Asia, Pacific Rim [phone]	[phone]
Europe, Middle East and Africa	[phone]
Austria	01 7956 7124
Belgium (Flemish)	070 700 000
Belgium (French)	070 700 770
Denmark	7010 7289
Finland	01080 2783
France	0825 809 622
Germany	01805 404 747
Hungary	06800 14466
Ireland	1800 509359
Israel	1800 943 2632
Italy	199 161346
Luxembourg	800 29880
Netherlands	0900 777 7737
Norway	815 33 047
Poland	00800 441 1357
Portugal	707 200 123
South Africa	0800 991196
Spain	9 021 60455
Sweden	07711 14453
Switzerland	08488 50112
U.K.	0870 241 3901
USA and Canada	1 800 876 3266	1 508 323 6061 (not toll free)
Latin America
Antigua	1-800-988-2112
Argentina	0-810-444-3COM
Aruba	1-800-998-2112
Bahamas	1-800-998-2112
Barbados	1-800-998-2112
Belize	52-5-201-0010
Bermuda	1-800-998-2112
Bonaire	1-800-998-2112
Brazil	0800-13-3COM
Cayman	1-800-998-2112
Chile	AT&T [phone]
Colombia	AT&T [phone]
Costa Rica	AT&T [phone]
Curacao	1-800-998-2112
Ecuador	AT&T [phone]
Dominican Republic	AT&T [phone]
Guatemala	AT&T [phone]
Haiti	57-1-657-0888
Honduras	AT&T [phone]
Jamiaca	1-800-998-2112
Martinique	57-1-657-0888
Mexico	01-800-849CARE
Nicaragua	AT&T [phone]
Panama	AT&T [phone]
Paraguay	54-11-4894-1888
Peru	AT&T [phone]
Puerto Rico	1-800-998-2112
Salvador	AT&T [phone]
Trinidad and Tobago	1-800-998-2112
Uruguay	AT&T [phone]
Venezuela	AT&T [phone]
Virgin Islands	57-1-657-0888
Asia, Pacific Rim [phone]	[phone]