DP-303 - Print Server D-LINK - Free user manual and instructions

Product Type	Print Server
Model	DP-303
Brand	D-Link
Printer Connections	3 x IEEE 1284 Bi-directional Parallel Ports (LPT1, LPT2, LPT3)
Network Connection	RJ-45 10/100Base-TX with NWay auto-negotiation
Network Protocols	IPX/SPX, TCP/IP, NetBEUI, AppleTalk
Supported Network OS	Novell NetWare 3.x/4.x/5.x, UNIX (lpr/lpd), Windows NT/2000/98/95, MacOS EtherTalk
Management	SNMP, MIB-II (RFC 1213), Telnet, PS Admin software
LED Indicators	Power/Tx, Link/Rx, LPT1, LPT2, LPT3
Dimensions (W x D x H)	223.3 x 131.7 x 35 mm
Weight	Approximately 430 g
Power Supply	External AC adapter, 5VDC input
Operating Temperature	0 to 50°C
Storage Temperature	-25 to 55°C
Humidity	5% to 95% non-condensing
Emissions	FCC Class A, CISPR 22 Class A, VCCI Class 1
Safety	UL (UL 1950), CSA (CSA950), TUV/GS (EN60950)
Self-Test	Power-on self-test with LED error codes
Included Accessories	Quick Installation Guide, CD with PS Admin software, AC power adapter
Port Pinouts	Standard 25-pin D-sub female parallel port (compatible with Centronics 36-pin)

Frequently Asked Questions - DP-303 D-LINK

How do I install the DP-303 print server?

First, connect the print server to your network using the RJ-45 port. Then, connect your printers to the LPT ports while they are powered off. Power on the printers, then connect the power adapter to the print server. The Power/Tx LED should light green. Finally, install PS Admin software from the CD to configure the print server.

What does each LED indicator mean during normal operation?

Power/Tx: Steady green means powered on; blinks off briefly when transmitting. Link/Rx: Steady or flashing green indicates good network connection; blinks off when receiving. LPT1/2/3: On when transferring print data through that port.

What should I do if the LPT LEDs show an error pattern during self-test?

The self-test uses the three LPT LEDs to indicate hardware faults. For example, if LPT1 is steady on and others off, there is an LPT1 error. Refer to the manual's error table to identify the faulty component and contact D-Link support for replacement.

Which network protocols does the DP-303 support?

It supports IPX/SPX (Novell NetWare), TCP/IP (UNIX, Windows), NetBEUI (Microsoft networks), and AppleTalk (MacOS EtherTalk). It also supports automatic frame type detection.

Can I configure the print server without Windows software?

Yes, you can configure it via Telnet if your network uses TCP/IP. The manual also mentions support for SNMP and a web-based interface may be available, but Telnet is the primary non-Windows method.

What is the maximum cable length for the parallel ports?

The manual does not specify a maximum length, but for IEEE 1284 parallel cables, the standard maximum length is 10 feet (3 meters) for high-speed bidirectional communication. Longer cables may cause data errors.

How do I reset the DP-303 to factory defaults?

The manual does not mention a reset button. To restore defaults, you may need to use the PS Admin software or Telnet to reload the firmware. If a hard reset is required, disconnect power for 10 seconds, but this won't clear settings. Check the PS Admin guide for factory reset instructions.

Does the DP-303 support DHCP?

Yes, it supports DHCP (Dynamic Host Configuration Protocol) for automatic IP address assignment. It also supports BOOTP, RARP, and manual static IP configuration via PS Admin or Telnet.

What printers are compatible with the DP-303?

Any printer with a standard parallel (Centronics) interface is compatible. The print server supports IEEE 1284 bidirectional communication and HP's Printer Job Language (PJL) for advanced features. Laser printers benefit most from the high-speed connection.

Why is the Link/Rx LED off?

If the Link/Rx LED is off, the print server is not connected to the network properly. Check that the Ethernet cable is securely plugged into both the print server and the switch/hub. Also ensure the switch port is active and supports 10/100Base-TX. Try a different cable or port.

USER MANUAL DP-303 D-LINK

Ethernet/Fast Ethernet

Print Server

Hardware User's Guide

Re v. 01 (May, 2000)

Contents subject to change without prior notice.

All trademarks belong to their respective proprietors.

Copyright Statement

No part of this publication may be reproduced in any form or by any means or used to make any derivative such as translation, transformation, or adaptation without permission, as stipulated by the United States Copyright Act of 1976.

FCC Warning

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with this user's guide, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

CE Mark Warning

This is a Class A product. In a domestic environment, this product may cause radio interference in which case the user may be required to take adequate measures.

注意

ABOUT THIS GUIDE......VII

INTRODUCTION....1

Print Server Features .... 1

External Features .... 3

Port Connectors .... 3

Network Cable Connector .... 3

DC Power Connector .... 4

LED Indicators 4

UNPACKING AND INSTALLATION......6

Unpacking and Inspecting the Print Server 6

Installing the Print Server 7

Power On Self-Test 8

Testing Your Print Server....9

PRODUCT SPECIFICATIONS 10

Printer Connection.... 10

Network Connection.... 10

Network Protocols 11

Management and Diagnostics.... 11

Environmental and Physical 11

PORT PINOUTS....13

Parallel Ports.... 13

ABOUT THIS GUIDE

This manual describes the 3 Parallel Port Ethernet/Fast Ethernet Multiprotocol Print Server, including a description of the print server's features, as well as the print server installation procedures and troubleshooting self-test results.

For information about software configuration of the Print Server to allow it to be used with your network, consult the PS Admin User's Guide included with your Print Server.

INTRODUCTION

The Print Server is a compact print server which connects to your Ethernet or Fast Ethernet network anywhere you wish to locate printer services. It manages the flow of print files from your workstations or file servers to its connected printers, delivering print jobs to high-performance printers much faster than a file server or a PC acting as a print server can.

Print Server Features

The Print Server improve network printing services in three ways:

- The Print Server picks up the workload of managing print file traffic to its connected printers. This provides workload relief to your file servers, and allows the file servers' full capacity to be used for file access or other direct services to network users. On peer-to-peer networks, workstations can print directly to the Print Server without increasing the load of another workstation or server.

• The Print Server's parallel printer ports are IEEE 1284 compliant high-speed bidirectional ports, which can transmit to high-speed laser printers much faster than a PC's parallel printer port. High-speed laser printers connected to the Print Server's parallel ports can be operated at their full capacity.
• Because the Print Server is very portable and inexpensive compared to a PC-based print server, and because the Print Server connects to your file servers through the network, printers can be deployed to locations of maximum convenience to users.

The Print Server offers extraordinary flexibility, operating with all major network operating systems and protocols:

♦ IPX/SPX

Novell NetWare 3.x, 4.x, 5.x (Using either bindery emulation or native NDS)

♦ TCP/IP

UNIX lpr/lpd (HP-UX, SunOS, Solaris, SCO, UnixWare, IBM AIX)

Windows NT, Windows 2000/98/95

NetBEUI

Windows NT, Windows 2000/98/95, Windows for Workgroups, Microsoft LAN Manager, IBM LAN Server

AppleTalk

MacOS EtherTalk

Windows-based setup and administration software, PS Admin, is supplied with the Print Server, making configuration and management quick and easy. The Print Server also supports configuration and management via the telnet protocol for networks without Windows-compatible machines.

External Features

This section describes the externally visible features of the Print Server.

Port Connectors

The Print Server's three printer ports are located on its rear panel. Three identical parallel ports are labeled LPT1, LPT2 and LPT3. These printer ports are independently configurable using the PS Admin program or the print server's telnet interface. (See the PS Admin User's Guide for information about configuring the print server's ports.)

Rear Panel Connectors

Network Cable Connector

The Print Server's rear panel features an RJ-45 connector for connection to 10Base-T Ethernet cabling or 100Base-TX Fast Ethernet cabling (which should be Category 5 twisted-pair cable). The port supports the NWay protocol, allowing the print server to automatically detect or negotiate the transmission speed of the network.

DC Power Connector

The DC power input connector is located on the Print Server's rear panel and is labeled DC 5V.

LED Indicators

The front panel of the Print Server features five LED indicators:

Front Panel LED Indicators

♦ Power/Tx

◇ Steady or flashing green confirms that the Print Server is powered on.
◇ The indicator blinks off briefly to indicate that the Print Server is transmitting to the network.

♦ Link/Rx

◇ Steady or flashing green confirms that the Print Server has a good connection to the Ethernet or Fast Ethernet network.
◇ The indicator blinks off briefly to indicate that the Print Server is receiving from the network.

♦ LPT1, LPT2, LPT3

These LED indicators light to show that the Print Server is transferring print data through the appropriate parallel port.

These three indicators are also used by the print server's power-on self test (POST) to indicate any hardware failures.

2

UNPACKING AND INSTALLATION

This chapter explains how to install your Print Server and connect it to the network. It also describes the print server self test indications.

Unpacking and Inspecting the Print Server

Carefully remove all items from the package. In addition to this Hardware User's Guide, be certain that you have:

♦ One 3 Parallel Port print server
♦ One AC power adapter suitable for your country’s electric power
♦ One Print Server Installation CD
♦ One Quick Installation Guide

If any item is missing, or if you find any damage or mismatch, promptly contact your dealer for assistance.

Installing the Print Server

WARNING: Configuration problems may result if the Print Server is powered up without first establishing its network connection. Follow this procedure to avoid complications at the configuration stage.

1. Confirm proper operation of each of the printers to be connected to the Print Server.
2. When you have confirmed proper operation of each printer, switch its power off.
3. Confirm that your network is operating normally.
4. Connect the Print Server to the network, using the RJ-45 (10Base-T/100Base-TX) connector on the print server's rear panel.
5. While each printer is powered off, install a printer cable to connect its parallel port to the printer port of the Print Server.
6. Switch on each connected printer.
7. Plug the AC power adapter's DC output plug into the DC 5V power socket on the rear panel of the Print Server.
8. Plug the power adapter into an electric service outlet. This will supply power to the Print Server, as it has no external power switch. The Power/Tx LED on the Print Server's front panel should light steady green, and the Print Server's self-test will proceed.

Power On Self-Test

When the Print Server is powered on, it automatically performs a self-test on each of its major components. The final result of the self-test is signaled by the state of the LPT1, LPT2, and LPT3 LED indicators following the self-test. Preliminary to the actual component tests, the three LED indicators are tested to confirm their steady and flashing operation.

Immediately after power-up, all five of the LED's should show steady green for several seconds. Then the LPT1, LPT2, and LPT3 LEDs should flash on simultaneously three times. Irregularity of any of the three LEDs during these LED tests may mean there is a problem with the LEDs themselves. Contact your dealer for correction of any LED problems before proceeding.

The actual component tests immediately follow the LED tests. A normal (no fault) result is signaled by a series of three cycles of sequential flashing of the three LEDs, followed by a quiescent state with all three LEDs dark.

If the self-test routine traps any component error, then following the LED tests the self-test will halt and the LED's will continuously signal the error according to the following table. In the event of any such error signal, contact your dealer for correction of the faulty unit.

LED Name			Faulty Component
LPT1 LPT2 LPT3
off	off	on/steady	LPT3 error
off	off	flashing	Parallel-3 Controller error
off	on/steady	off	LPT2 error
off	on/steady	on/steady	LAN Controller error
off	on/steady	flashing	LAN Memory error
off	flashing	off	Parallel-2 Controller error
off	flashing	on/steady	EEPROM error
off	flashing	flashing	Flash Protected
on/steady	off	off	LPT1 error
on/steady	off	on/steady	Timer INT error
on/steady	off	flashing	LAN IO Base error
on/steady	on/steady	off	RAM error
flashing	off	off	Parallel-1 Controller error
flashing	flashing	off	Flash erase/program error
flashing	flashing	flashing	Need to reload firmware

Testing Your Print Server

The PS Admin software includes a Print Test function for confirmation of printer cable connections and functions. That operational test can be completed after you have installed the PS Admin software, and have configured your Print Server and its ports. See the Testing Your Print Server section of the PS Admin User's Guide.

PRODUCT

SPECIFICATIONS

Printer Connection

Standards: IEEE 1284 bi-directional parallel interface

Ports: Bi-directional 25-pin parallel ports · 3

Parallel Port Bi-directional Communication: Hewlett-Packard PJL (Printer Job Language) supported

Network Connection

Network Standards: IEEE 802.3 10Base-T Ethernet, IEEE 802.3u 100BASE-TX Fast Ethernet

Network Data Transfer Rate: 10/100Mbps

Network Connector: RJ-45 connector for 10Base-T or 100BASE-TX unshielded twisted pair connection; NWay automatic speed negotiation supported.

Network Protocols

Ethernet Frame Types: 802.2, 802.3, Ethernet II, SNAP (auto-switching)

Transport Protocols: IPX/SPX, TCP/IP, NetBEUI, AppleTalk/EtherTalk

TCP/IP Protocols Supported: BOOTP, SNMP, Telnet, TFTP, FTP, lpd, RARP, DHCP

Management and Diagnostics

Standard: SNMP

MIBs: MIB-II (RFC 1213)

Diagnostic LED Indicators: Power/Tx, Link/Rx, LPT1, LPT2, LPT3

Environmental and Physical

Power Supply: External power supply providing 5VDC input

Dimensions: 223.3mm · 131.7mm · 35mm

Weight: approx. 430g

Operating Temperature: 0 to 50°C

Storage Temperature: -25 to 55°C

Humidity: 5% to 95% non-condensing

Emissions: FCC Class A, CISPR 22 Class A, VCCI Class 1,

Safety: UL (UL 1950), CSA (CSA950), TUV/GS (EN60950)

PORT PINOUTS

This appendix shows the pinouts of the Print Server parallel port connector.

Parallel Ports

The following table lists the pinouts of the print server's 25-pin parallel port connector (identical to the connector used on most personal computers), as well as the 36-pin Centronics connector used on most printers.

Signal names beginning with n are active-low signals.

25-pin	Centronics	Signal	Source
1	1	nStrobe	Host
2	2	Data 1	Bi-directional
3	3	Data 2	Bi-directional
4	4	Data 3	Bi-directional
5	5	Data 4	Bi-directional
6	6	Data 5	Bi-directional
7	7	Data 6	Bi-directional
8	8	Data 7	Bi-directional
9	9	Data 8	Bi-directional
10	10	nAck	Printer
11	11	Busy	Printer
12	12	PError	Printer
13	13	Select	Printer
14	14	nAutoFd	Host
15	32	nFault	Printer
16	31	nInit	Host
17	36	nSelectIn	Host
18-25	16, 17, 19-30	Ground