LevelOne OfficeCon GSW-2420 User manual

LevelOne
GSW-2420
24-Port Gigabit Switch
User Manual
Version 1.0-0602

FCC Certifications
This Equipment has been tested and found to comply with the limits for a ClassA
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 the instruction manual, 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
hisown expense.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and
(2) this device must accept any interference received; including interference that
may cause undesired operation.
CE Mark Warning
This equipment complies with the requirements relating to electromagnetic
compatibility, EN 55022 class A for ITE, the essential protection requirement of
Council Directive 89/336/EEC on the approximation of the laws of the Member
States relating to electromagnetic compatibility.
Company has an on-going policy of upgrading its products and it may be possible
that information in this document is not up-to-date. Please check with your local
distributors for the latest information. No part of this document can be copied or
reproduced in any form without written consent from the company.
Trademarks:
All trade names and trademarks are the properties of their respective companies.
Copyright © 2006,All Rights Reserved.

1
Unpacking Information
Thank you for purchasing GSW-2420 Gigabit Switch. Before installation, please verify
that your package contains the following items.
1. One GSW-2420 24-Port Gigabit Switch
2. One AC power cord
3. Rack-mount brackets
4. Stackable kit
5. Manual CD
Introduction
General Description
Easily boost your networking throughput, this product provides you 24 Gigabit ports that
lead you to a real Gigabit connection. Users are now able to transfer large and high
bandwidth-needed files faster and hence get a real efficiency improvement.
This product offers users with fast and reliable network. The store-and-forward
architecture filters errors and forwards packets in a non-blocking environment. Flow
control ensures the correctness of data transmitting. The 802.3x and backpressure flow
control mechanisms work respectively for full and half duplex modes.
The switch features with easy installation and maintenance. It supports Nway
auto-negotiation protocol that detects the networking speed (10/100/1000 Mbps) and the
duplex modes (Full/Half) automatically. Auto-MDI/MDI-X function alleviates the effort to
use crossover cables. Also, rich diagnostic LEDs are provided for users to get real-time
information of the connection status.
Key Features
 Complies with 10BASE-T specifications of the IEEE802.3 standard
 Complies with 100BASE-TX specifications of the IEEE802.3u standard
 Complies with 1000BASE-T specifications of the IEEE802.3ab standard
 24 * 10/100/1000Mbps RJ-45 Nway ports
 Supports NWay protocol for speed (10/100/1000Mbps) and duplex mode (Half/Full)
auto-detection
 Supports MDI/MDI-X auto crossover
 Supports full and half duplex operation on all ports
 Supports back-pressure (half duplex) and flow control (IEEE 802.3x)
 Wire-speed packet filtering and forwarding rate
 Store-and-forward architecture filters fragment & CRC error packets
 Supports 8K MAC address entries in whole system
 500KBytes buffer memory
 Support 9K bytes Jumbo Frames
 Supports extensive LED indicators for network diagnostics

2
 Internal power adapter
 FCC,VCCI,CE Class A, Meet RoHS
The Front Panel
The front panel consists of LED indicators . For detailed LED definition, please refer to the
next paragraph.
LEDs Definition
System LED
LED Status Operation
Steady Green The switch is powered on
Power Off The switch is powered off
Port LEDs
LED Status Operation
Steady Green Valid port connection at 1000 Mbps
Blinking Green Valid port connection and there is data
transmitting/ receiving
1000M
Off Port disconnected or the port is connected
at 10 Mbps or 100 Mbps
Steady Green Valid port connection at 10/ 100 Mbps
Blinking Green Valid port connection and there is data
transmitting/ receiving
10/ 100M
Off Port disconnected or the port is connected
at 1000 Mbps

3
The Rear Panel
Power Receptacle
To be compatible with the electric service standards around the world, the switch is
designed to afford the power supply in the range from 100 to 240VAC, 50/60Hz. Please
make sure that your outlet standard to be within this range.
To power on the switch, plug the female end of the power cord firmly into the receptacle of
the switch and the other end into an electric service outlet. After the power cord installation,
please check if the power LED is illuminated for a normal power status.
Installation
This switch can be placed on your desktop directly, or mounted in a rack. The installation
is a snap. Users can use all the features of the switch with simply attaching the cables and
turning the power on.
Before installing the switch, we strongly recommend:
1. The switch is placed with appropriate ventilation environment. A minimum 25mm
space around the unit is recommended.
2. The switch and the relevant components are away from sources of electrical noise
such as radios, transmitters and broadband amplifiers
3. The switch is away from environments beyond recommend moisture
Desktop Installation
1. Attach the provided robber feet to the bottom of the switch to keep the switch from
slipping. The recommend position has been square-marked.
2. Install the switch on a level surface that can support the weight of the unit and the
relevant components.
3. Plug the switch with the female end of the provided power cord and plug the male
end to the power outlet.

4
Rack-mount Installation
Rack mounting facilitate to an orderly installation when series of networking devices
being installed. The switch is supplied with rack mounting brackets and screws for
rack mounting the unit.
Procedures to Rack-Mount the Switch in the rack:
1. Disconnect all the cables from the switch before continuing.
2. Place the unit the right way up on a hard, flat surface with the front facing
you.
3. Locate a mounting bracket over the mounting holes on one side of the unit.
4. Insert the screws and fully tighten with a suitable screwdriver.
5. Repeat the two previous steps for the other side of the unit.
6. Insert the unit into the rack and secure with suitable screws (optional).
7. Reconnect all the cables.
Network Cables Installation
1. Crossover or straight-through cable: All the ports on the switch support
Auto-MDI/MDI-X functionality. Both straight-through or crossover cables can be
used to connect the switch with PCs as well as other devices like switches, hubs
or router.
2. Category 3,4,5 or 5e UTP/STP cable: To make a valid connection and obtain the
optimal performance. Appropriate cables corresponding to different
transmitting/receiving speed is required. To choose a suitable cable, please refer
to the following table.
Media Speed Wiring
10Mbps Category 3,4,5 Utp/STP
100Mbps Category 5 UTP/STP
10/100/1000Mbps copper
1000Mbps Category 5,5e UTP/STP

5
Port Operation
The auto-negotiation feature allows ports running at one of the following
operation modes:
Media Speed Duplex Mode
Full Duplex10Mbps Half Duplex
Full Duplex100Mbps Half Duplex
10/100/1000Mbps(copper)
1000Mbps Full Duplex
Backbone Network Application
This switch is ideal for boosting the throughput of backbone. For an application sample of
network topology, please refer to the following chart.

6
Product Specifications
Standard
IEEE802.3 10BASE-T
IEEE802.3u 100BASE-TX
IEEE802.3x full-duplex flow control
IEEE802.3ab 1000BASE-T
Interface 24*10/100/1000 Mbps auto MDI/MDI-X RJ-45 switching ports
Cable
Connections
RJ-45 (10BASE-T): Category 3,4,5 UTP/STP
RJ-45 (100BASE-TX): Category 5 UTP/STP
RJ-45 (1000BASE-T): Category 5,5e or enhanced UTP/STP
Transmission
Mode
10/100Mbps Full-duplex, Half-duplex
1000Mbps Full-duplex
LED indications
Power
24* 10/ 100M: Link/ACT
24* 1000M: Link/ACT
Memory 8K MAC entries
500K bytes Buffer Memory
Emission FCC, CE, VCCI
Operating
Temperature 00~ 400C (320~ 1040F)
Operating
Humidity 10% - 90%(non-condensing)
Power Supply Internal power supply
100-240V/50-60 Hz universal input