GTL2091 - Switch LEVELONE - Free user manual and instructions

Product type	Managed Ethernet network switch
Brand	LevelOne
Model	GTL-2091
Main functions	Management via Web interface and CLI, console port, 19-inch rack or desktop mounting
Power supply	100-240 V AC, 50/60 Hz
Operating temperature	0°C to 50°C
Operating humidity	10% to 90% non-condensing
Interfaces	RS-232 console port, Ethernet ports (not specified)
Rack mounting	Yes, 19-inch standard with included L-brackets
Desktop mounting	Yes, with included rubber feet
Included accessories	Power cord, quick installation guide, L-brackets, CD-ROM, console cable, rubber feet
Compliance	CE (EMC, Low Voltage, RoHS, REACH directives)
Applied standards	EN 55032, EN 55024, EN 60950-1, EN 61000
Default configuration	IP address: 192.168.1.1, credentials: admin/admin
Maintenance	Avoid direct light, heat, high humidity; clean with a soft dry cloth

Frequently Asked Questions - GTL2091 LEVELONE

How to initially configure the GTL-2091 switch?

Connect a PC to the console port via the supplied cable, configure the serial port to 9600 bps (8 bits, no parity, 1 stop), then log in with username admin and password admin.

What are the default credentials to access the management interface?

The default username is admin and the password is admin.

How to access the switch's web interface?

Open a browser and enter the IP address 192.168.1.1 in the address bar. Log in with the default credentials.

What IP address should I assign to my computer to access the switch?

Use a free IP address in the range 192.168.1.2 to 192.168.1.254 with the appropriate subnet mask.

How to install the switch in a rack?

Attach the supplied L-brackets to each side of the switch, place it in the rack on a shelf, then securely screw the brackets to the rack rails. Connect the power cord.

Can I place the switch on a desk?

Yes. Turn the switch over, remove the protective film from the rubber feet and stick them to the designated spots on the bottom. Place the switch back on a stable surface and connect the power.

What cables and accessories are supplied with the switch?

The box contains the main unit, a power cord, a quick installation guide, two L-brackets, a CD-ROM, a console cable, and four rubber feet.

What is the required power supply voltage for the switch?

The switch operates with an AC mains power supply of 100 to 240 V at 50/60 Hz.

How to reset the switch to factory settings?

The reset procedure is not detailed in the provided manual. Refer to the Web management guide or the CLI reference guide for reset instructions.

Does the switch support remote management?

Yes, via the Web interface (HTTP) and command-line interface (CLI) by console or Telnet/SSH after configuration.

USER MANUAL GTL2091 LEVELONE

Quick Installation Guide

( GTL - 2091 )

level® one

Content

English 2

Deutsch......6

Français 10

Español 14

Italiano 18

Português ....22

EU Declaration of Conformity....26

This Quick Installation Guide only describes the most basic situations and settings. All detailed information is described in the user manual.

English

Package Contents

This product is provided with the following accessories in the box; please check them carefully. If any of the accessories is missing or damaged, please contact with your local dealer timely.

Serial number	Name	Quantity	Note
1	Master unit	1	Required
2	Power cord	1	Required
3	Quick Installation Guide	1	Required
4	L-shaped bracket and other	1	Required
5	Resource CD (User Manual, QIG)	1	Required
6	Console Cable	1	Required
7	Rubber Feet	1	Required

1. Preparing for installation

For smooth installation, please prepare the following items:

● Installation tools, including: Phillips screwdriver, anti static wrist strap, etc.

- Connecting cables, such as network cable, optical fiber, optical fiber module, etc.

● Related devices, such as electrical outlets, HUB, switch, router, etc.

!

The installation environment for the switch must meet the following requirements:

1. The switch must avoid direct sunlight, away from heat and sources of strong electromagnetic interference.
2. The switch must be placed in a cool, dry place, and there should be enough gap for heat dissipation all around for the purpose of ventilation and heat dissipation.
3. The switch must work in the indoor environment with a temperature of 0^ C\~ 50^ C and humidity of 10%\~90% without condensation.

2. Equipment Installation

■ It is installed in the rack

Install the switch on a 19-inch standard rack, and the installation steps are as follows:

1. Check the grounding and stability of the rack;
2. Install the two L-shaped brackets in the accessories on both sides of the switch panel, and fix them with the screws in the accessories;
3. Place the switch in the appropriate location of the rack, and support it using a tray;
4. Secure the L-shaped brackets on the guide slots fixed at both ends of the rack, to ensure that the switch can be mounted on the rack in astable, horizontal manner;
5. Use a power cord to connect the switch power connector with the powersocket.

Diagram of a network switch device showing labeled ports and connectors, with numbered annotations.

■ Installed on the working table

Install the switch on a working table, and the installation steps are as follows:

1. Place the switch with its bottom up on a sufficiently large, stable and properly-grounded working table;
2. Remove the adhesive protective paper from the foot pad, and stick the 4 pads in the 4round slots at the bottom of the casing respectively;
3. Flip over the switch, and place it on the working tablestably;
4. Use a power cord to connect the switch power connector with the power socket.
5. The switch uses 100-240V, 50/60Hz AC, and make sure that both power supply and grounding are normal before power on.
6. After power on, please check the switch's power indicator (Power) is on, and if so, it indicates that the power supply is connected properly.
7. Do not place heavy objects on the top of the switch.

3. Perform Initial Configuration

Diagram showing connection between a network switch and an external device with labeled pins 1, 2, and 3.

1. Connect a PC to the switch console port using the included console cable.
2. Configure the PC's serial port: 9600 bps, 8 characters, no parity, one stop bit, 8 data bits, and no flow control.
3. Log in to the CLI using default settings: Username "admin" and password "admin."

Note: For further information on switch configuration, refer to the Web Management Guide and CLI Reference Guide.

4. Logging on to the equipment

1. Connect the RJ-45 interface cable of a switch with a computer using a network cable.
2. Set the TCP/IP properties of the computer, see the Appendix: Setting up your computer.
3. Logging on to the equipment: Open a browser and type 192.168.1.1 in the address bar, and then press Enter; in the pop-up login interface, enter the factory logon username "admin", password "admin" and click OK.

File

Edit

192.168.1.1

Favorites

Tools

Help

Windows Security

iexplore.exe

The server 192.168.1.1 is asking for your user name and password. The server reports that it is from Switch.

Warning: Your user name and password will be sent using basic authentication on a connection that isn't secure.

admin

●●●●●

Remember my credentials

OK

Cancel

5. Appendix: Setting up your computer

Windows

1. Click Start—> Control Panel—> Network and Internet—> Network and Sharing Center—> Change adapter settings, right click Local connection and select Properties;

Ethernet Unidentified network Realtek PCIe GBE Family C... Disable Status Diagnose Bridge Connections Create Shortcut Delete Rename Properties

1. Double-click Internet Protocol 4 (TCP/IPv4);

Ethernet Properties Networking Sharing Connect using: Realtek PCIe GBE Family Controller Configure... This connection uses the following items: QoS Packet Scheduler Internet Protocol Version 4 (TCP/IPv4) Microsoft Network Adapter Multiplexor Protocol Microsoft LLDP Protocol Driver Internet Protocol Version 6 (TCP/IPv6) Link-Layer Topology Discovery Responder Link-Layer Topology Discovery Mapper I/O Driver Install... Uninstall Properties Description Transmission Control Protocol/Internet Protocol. The default wide area network protocol that provides communication across diverse interconnected networks. Internet Protocol Version 4 (TCP/IPv4) Properties General You can get IP settings assigned automatically if your network supports this capability. Otherwise, you need to ask your network administrator for the appropriate IP settings. Obtain an IP address automatically Use the following IP address: IP address: 192 . 168 . 1 . 2 Subnet mask: 255 . 255 . 255 . 0 Default gateway: . Obtain DNS server address automatically Use the following DNS server addresses: Preferred DNS server: . Alternate DNS server: . Validate settings upon exit Advanced... OK Cancel OK Cancel

1. Set the computer's IP address: The computer's IP address should be any one of the following free IP addresses 192.168.1.2 \~ 192.168.1.254, and then click OK, to return to the previous page, click OK.

Deutsch

Lieferumfang

Diagram of a network switch device with labeled ports and connectors, showing internal structure and connection points.

Diagram showing connection between a network switch and an oscilloscope via cable, with labeled components 1, 2, and 3.

Windows Security iexplore.exe The server 192.168.1.1 is asking for your user name and password. The server reports that it is from Switch. Warning: Your user name and password will be sent using basic authentication on a connection that isn't secure. admin ...... Remember my credentials OK Cancel

Ethernet Unidentified network Realtek PCIe GBE Family C... Disable Status Diagnose Bridge Connections Create Shortcut Delete Rename Properties

Ethernet Properties Networking Sharing Connect using: Realtek PCIe GBE Family Controller Configure... This connection uses the following items: QoS Packet Scheduler Internet Protocol Version 4 (TCP/IPv4) Microsoft Network Adapter Multiplexor Protocol Microsoft LLDP Protocol Driver Internet Protocol Version 6 (TCP/IPv6) Link-Layer Topology Discovery Responder Link-Layer Topology Discovery Mapper I/O Driver Install... Uninstall Properties Description Transmission Control Protocol/Internet Protocol. The default wide area network protocol that provides communication across diverse interconnected networks. Internet Protocol Version 4 (TCP/IPv4) Properties General You can get IP settings assigned automatically if your network supports this capability. Otherwise, you need to ask your network administrator for the appropriate IP settings. Obtain an IP address automatically Use the following IP address: IP address: 192 . 168 . 1 . 2 Subnet mask: 255 . 255 . 255 . 0 Default gateway: . Obtain DNS server address automatically Use the following DNS server addresses: Preferred DNS server: . Alternate DNS server: . Validate settings upon exit Advanced... OK Cancel

Diagram of a network switch device with labeled ports and connectors, showing internal structure and terminal connections.

Diagram showing connection between a network switch and an external device with labeled ports

Windows Security iexplore.exe The server 192.168.1.1 is asking for your user name and password. The server reports that it is from Switch. Warning: Your user name and password will be sent using basic authentication on a connection that isn't secure. admin ****** Remember my credentials OK Cancel

Ethernet Unidentified network Realtek PCIe GBE Family C... Disable Status Diagnose Bridge Connections Create Shortcut Delete Rename Properties

1. Double-cliquez sur Internet Protocol 4 (TCP/IPv4);

Ethernet Properties Networking Sharing Connect using: Realtek PCIe GBE Family Controller Configure... This connection uses the following items: ✓ QoS Packet Scheduler ✓ Internet Protocol Version 4 (TCP/IPv4) □ Microsoft Network Adapter Multiplexor Protocol ✓ Microsoft LLDP Protocol Driver □ Internet Protocol Version 6 (TCP/IPv6) ✓ Link-Layer Topology Discovery Responder ✓ Link-Layer Topology Discovery Mapper I/O Driver Install... Uninstall Properties Description Transmission Control Protocol/Internet Protocol. The default wide area network protocol that provides communication across diverse interconnected networks. Internet Protocol Version 4 (TCP/IPv4) Properties General You can get IP settings assigned automatically if your network supports this capability. Otherwise, you need to ask your network administrator for the appropriate IP settings. ○ Obtain an IP address automatically ● Use the following IP address: IP address: 192 . 168 . 1 . 2 Subnet mask: 255 . 255 . 255 . 0 Default gateway: . ○ Obtain DNS server address automatically ● Use the following DNS server addresses: Preferred DNS server: . . . . Alternate DNS server: . . . . ✓ Validate settings upon exit Advanced... OK Cancel OK Cancel

Diagram of a network switch device with labeled ports and connectors, showing internal structure and connection points.

Diagram showing connection between a network switch and an external device, labeled with numbered components.

Windows Security iexplore.exe The server 192.168.1.1 is asking for your user name and password. The server reports that it is from Switch. Warning: Your user name and password will be sent using basic authentication on a connection that isn't secure. admin ...... Remember my credentials OK Cancel

Ethernet Unidentified network Realtek PCIe GBE Family C... Disable Status Diagnose Bridge Connections Create Shortcut Delete Rename Properties

1. Haga doble clic en Protocolo de Internet 4 (TCP/IPv4);

Ethernet Properties Networking Sharing Connect using: Realtek PCIe GBE Family Controller Configure... This connection uses the following items: QoS Packet Scheduler Internet Protocol Version 4 (TCP/IPv4) Microsoft Network Adapter Multiplexor Protocol Microsoft LLDP Protocol Driver Internet Protocol Version 6 (TCP/IPv6) Link-Layer Topology Discovery Responder Link-Layer Topology Discovery Mapper I/O Driver Install... Uninstall Properties Description Transmission Control Protocol/Internet Protocol. The default wide area network protocol that provides communication across diverse interconnected networks. Internet Protocol Version 4 (TCP/IPv4) Properties General You can get IP settings assigned automatically if your network supports this capability. Otherwise, you need to ask your network administrator for the appropriate IP settings. Obtain an IP address automatically Use the following IP address: IP address: 192 . 168 . 1 . 2 Subnet mask: 255 . 255 . 255 . 0 Default gateway: . Obtain DNS server address automatically Use the following DNS server addresses: Preferred DNS server: . Alternate DNS server: . Validate settings upon exit Advanced... OK Cancel OK Cancel

Diagram of a network switch device with labeled ports and connectors, showing internal structure and connection points.

Diagram showing connection between a network switch and an external computer via cable, with labeled components 1, 2, and 3.

Windows Security iexplore.exe The server 192.168.1.1 is asking for your user name and password. The server reports that it is from Switch. Warning: Your user name and password will be sent using basic authentication on a connection that isn't secure. admin ...... Remember my credentials OK Cancel

Ethernet Unidentified network Realtek PCIe GBE Family C... Disable Status Diagnose Bridge Connections Create Shortcut Delete Rename Properties

Ethernet Properties Networking Sharing Connect using: Realtek PCIe GBE Family Controller Configure... This connection uses the following items: ✓ QoS Packet Scheduler ✓ Internet Protocol Version 4 (TCP/IPv4) □ Microsoft Network Adapter Multiplexor Protocol ✓ Microsoft LLDP Protocol Driver □ Internet Protocol Version 6 (TCP/IPv6) ✓ Link-Layer Topology Discovery Responder ✓ Link-Layer Topology Discovery Mapper I/O Driver Install... Uninstall Properties Description Transmission Control Protocol/Internet Protocol. The default wide area network protocol that provides communication across diverse interconnected networks. Internet Protocol Version 4 (TCP/IPv4) Properties General You can get IP settings assigned automatically if your network supports this capability. Otherwise, you need to ask your network administrator for the appropriate IP settings. Obtain an IP address automatically Use the following IP address: IP address: 192 . 168 . 1 . 2 Subnet mask: 255 . 255 . 255 . 0 Default gateway: . Obtain DNS server address automatically Use the following DNS server addresses: Preferred DNS server: . Alternate DNS server: . Validate settings upon exit Advanced... OK Cancel

Diagram of a network switch device with labeled ports and connectors, showing internal structure and connection points.

Diagram showing connection between a network switch and an electronic device via cable, labeled with components 1, 2, and 3.

Windows Security iexplore.exe The server 192.168.1.1 is asking for your user name and password. The server reports that it is from Switch. Warning: Your user name and password will be sent using basic authentication on a connection that isn't secure. admin ...... Remember my credentials OK Cancel

Ethernet Unidentified network Realtek PCIe GBE Family C... Disable Status Diagnose Bridge Connections Create Shortcut Delete Rename Properties

Ethernet Properties Networking Sharing Connect using: Realtek PCIe GBE Family Controller Configure... This connection uses the following items: QoS Packet Scheduler Internet Protocol Version 4 (TCP/IPv4) Microsoft Network Adapter Multiplexor Protocol Microsoft LLDP Protocol Driver Internet Protocol Version 6 (TCP/IPv6) Link-Layer Topology Discovery Responder Link-Layer Topology Discovery Mapper I/O Driver Install... Uninstall Properties Description Transmission Control Protocol/Internet Protocol. The default wide area network protocol that provides communication across diverse interconnected networks. Internet Protocol Version 4 (TCP/IPv4) Properties General You can get IP settings assigned automatically if your network supports this capability. Otherwise, you need to ask your network administrator for the appropriate IP settings. Obtain an IP address automatically Use the following IP address: IP address: 192 . 168 . 1 . 2 Subnet mask: 255 . 255 . 255 . 0 Default gateway: . Obtain DNS server address automatically Use the following DNS server addresses: Preferred DNS server: . Alternate DNS server: . Validate settings upon exit Advanced... OK Cancel

Declaration of Conformity

We, the undersigned, Digital Data Communications GmbH

Address Hohe Straße 1, 44139 Dortmund, Germany

Certify and declare under our sole responsibility that the following apparatus

Type : Ethernet switch

Brand name : LevelOne

Product : GTL-2091

Conforms with the essential requirements of the EMC Directive 2014/30/EU, 2014/35/EU, RoHS 2011/65/EU, REACH EC/1907/2006 Sbased on the following specifications applied:

EU harmonised standards

EN 55032: 2015
EN 61000-3-2: 2014
EN 61000-3-3: 2013
● EN 55024: 2010+A1: 2015
● EN 60950-1:2006+A11:2009+A1:2010+A12:2011+A2:2013
IEC 61000-4-2: 2008
IEC 61000-4-3: 2006
IEC 61000-4-4: 2004
IEC 61000-4-5: 2005
IEC 61000-4-6: 2008
IEC 61000-4-8: 2009
IEC 61000-4-11: 2004

CE

and therefore complies with the essential requirements and provisions of the EMC Directive.

The symbol confirms that this product conforms to the above named standards and regulations.

Amanda(Shu-Wen) Chen

Name (Full Name)

Geschäftsführerin

Title/ Department

2019/02/15

Date

Legal Signature

CE