Justec jgs800i User manual

8 Port Gigabit Switch
User’s Manual
FCC Certifications
This Equipment has been tested and found to comply with the limits for a ClassAdigital 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 his own 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 Afor 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 © 2004, All Rights Reserved.

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Unpacking Information
Thank you for purchasing the Gigabit Ethernet Switch. Before installation,
please check that your package contains the following items.
1.One Gigabit Ethernet Switch
2.One power cord
3.Rack-mount brackets (optional)
4.User’s Manual
Introduction
General Description
Easily boost your networking throughput, this switch provides you 8 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.
The switch 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 protocol, which detects the networking speed (either 10/100/1000
Mbps) and the duplex modes (Full or Half duplex) automatically and do an
immediately adjustment to advance the capability and performance.
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 that helps to do quick response and correction.
Key Features
zComplies IEEE802.3, IEEE802.3u and IEEE802.3ab standard
z8 * 10/100/1000Mbps RJ-45 Nway ports
zSupports NWay protocol for speed (10/100/1000Mbps) and duplex mode
(Half/Full) auto-detection
zSupports MDI/MDI-X auto crossover
zSupports full and half duplex operation on all ports
zSupports back-pressure (half duplex) and flow control (IEEE 802.3x)
zStore-and-forward architecture filters fragment & CRC error packets

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zSupports 8K MAC address entries in whole system
z180K Bytes buffer memory
zSupport up to 9K bytes jumbo Frames
zSupports extensive LED indicators for network diagnostics
zRack mountable
zInternal power supply
z100~240VAC/50~60Hz universal input
zFCC Class A, CE
The Front Panel
The front panel consists of LED indicators and the ports. For detailed LED
definition, please refer to the next paragraph.
LEDs Definition
The switch contain 1* power LED for the device, 1*1000M and 1*10/100M
LED for each port.
System LED:
LED Status Operation
Steady Green The switch is powered on
Power Off The switch is powered off
Port LEDs
LED Status Operation
Green The port is connected at 1000 Mbps
Blinking Green Data transmitting /receiving.
1000M Off No valid link on this port or the Port is
connected at 10/100 Mbps
Green The port is connected at 10 or 100 Mbps
Blinking Green Data transmitting /receiving.
10/100M
Off No valid link on this port or the port is
connected at 1000 Mbps

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The Rear Panel
The rear panel of the switch is shown as below
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 from100 to
240VAC, 50/60Hz. Please make sure that your outlet standard to be within
this range.
To power on the switch, please 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 lit
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.Install the switch on a level surface that can support the weight of the
unit and the relevant components.
2.Plug the switch with the female end of the provided power cord and plug
the male end to the power outlet.
Rack-mount Installation
Rack mounting facilitate to an orderly installation when series of networking
devices circumstance needed. The switch is supplied with rack mounting

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brackets and screws for rack mounting the unit.
Procedures to Rack-Mounting 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.
7.Reconnect all the cables.
Installation of Network Cables
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 5eUTP/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 Category3,4,5 UTP/STP
100Mbps Category 5 UTP/STP
10/100/1000
Mbps copper
1000Mbps
Category5,5e UTP/STP
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.

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Product Specifications
Standard
IEEE802.3 10BASE-T
IEEE802.3u 100BASE-TX
IEEE802.3ab 1000BASE-T
IEEE802.3x flow control
Interface 8 * 10/100/1000Mbps auto MDI/MDI-X RJ-45 ports
Network
Data Rate 10/100/1000Mbps Auto-negotiation
Transmission
Mode 10/100Mbps Full-duplex, Half-duplex 1000Mbps Full-duplex
LED
indications
System:
Power
Ports:
1000M, 10/100M
Memory 8K MAC entries
180K Bytes Memory
Jumbo frame
9K bytes
Emission FCC Class A, CE
Operating
Temperature
00~ 400C (320~ 1040F)
Operating
Humidity 10% - 90%(non-condensing)
Power
Supply Internal power supply 3.3V 4A 100-240V/50-60 Hz universal input