UNICOM MicroGST-5, MicroGST-8 User Manual

908 Canada Court

City of Industry, CA 91748 U.S.A.

Phone: [phone] or 800.346.6668 Fax: [phone]

www.unicomlink.com e-mail: [e-mail]

©UNICOM 2009. UNICOM and “A Network Systems Solution” are trademarks of UNICOM Electric, Inc.
All rights reserved. Specifications subject to change without notice.
Rev: 10.09

5 or 8 Port 10/100/1000Base-T

Desktop Switch

MicroGST-5
MicroGST-8

USER’S MANUAL

MicroGST-5 GEP-32005T-1
MicroGST-8 GEP-32008T-1

1. Introduction

Thank you for purchasing Unicom’s MicroGST-5 or MicroGST-8 Desktop
Gigabit Switch. Before you start installing the switch, verify the following
parts in the package.

1.1 The package contains

Every switch contains the following:

■

One MicroGST-5 or MicroGST-8 Desktop Gigabit Switch

■

One AC Power Adapter

■

One User’s Guide

IMPORTANT: If any piece is missing or damaged, please contact your
local dealer or reseller for service.

1.2 Features

■

Auto MDI/MDI-X

■

Head-of-line blocking prevention.

■

Flow Control ensures no packet loss, back pressure for half
duplex operation and IEEE 802.3x for full duplex operation

■

Store and Forward switching methodology to ensure low latency
and high data integrity, eliminates unnecessary traffic and
relieves congestion on critical network paths

■

No fan for low noise

8 1

T

he information in this guide may be changed without notice. The manufacturer assumes no

responsibility for any errors which may appear in this guide.

Ethernet is a trademark of XEROX Corporation. Microsoft, Windows and Windows logo are trademarks
of Microsoft Corporation.

Copyright 2009. All right are reserved. No Part of the contents of this guide maybe transmitted or
r

eproduced in any form or by any means without the written permission of us. Printed in Taiwan.

User’s Guide: Version 1.04

FCC Statement

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

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.

For Your Records

Product Name:

Serial Number:

Date of Purchase:

Purchased from:

Notes:

For full coverage of your warranty, be sure
to register your product using the enclosed
registration card.

2

7

4 Technical Specifications

■ MicroGST-5 (5-Port 10/100/1000T switch)

Ports 5-Port 1000Base-T
Buffer Memory 104 KB
MAC Address 1000
Jumbo Frame 9 KB
Size (W x D x H) Metal case: 109 x 84 x 27 (mm)

Plastic case: 120 x 84 x 32 (mm)

Weight Metal case: 0.48 kg

Plastic case: 0.49 kg

Power 7.5 VDC, 0.7 A
EMI/EMC FCC Class A, CE

■ MicroGST-8 (8-Port 10/100/1000T switch)

Ports 8-Port 1000Base-T
Buffer Memory 192 KB
MAC Address 4000
Jumbo Frame 9 KB
Size (W x D x H) Metal case: 158 x 104 x 27 (mm)

Plastic case: 170 x 106 x 32 (mm)

Weight Metal case: 0.63 g

Plastic case: 0.49 kg

Power 7.5 VDC, 0.7
EMI/EMC FCC Class A, CE

MicroGST-5 and MicroGST-8 Switches:

Operating Temperature 0°C to 40°C (32°F to 122°F)
Storage Temperature -40°C to 70°C (-40°F to 158°F)
Operating Humidity 20% to 85% relative humidity, non-condensing
Storage Humidity 20% to 90% relative humidity, non-condensing

5. Warranty statement

We provide this limited warranty for it originally purchased the product from us or its authorized reseller
or distributor. We guarantee that equipment is free from physical defects in workmanship and material
under normal use from the date of original retail purchase of the Hardware. If the product proves
defective during this warranty period, call our Customer Service in order to obtain a Return
Authorization number. Be sure to have a proof of purchase on hand when calling. Return requests
cannot be processed without proof of purchase. When returning a product, mark the Return
Authorization Number clearly on the package pack and include you original proof of purchase. All
customers outside the R.O.C. shall be held responsible for shipping and handling charges. In no event
shall our liability exceed the price paid for the product from direct, incidental or consequential damage
resulting from the use of the product, its accompanying software, or its documentation. We make no
warranty or representation, expressed, implied, or statutory, with respect to its products or the contents
or use of this documentation and all accompanying software, and specifically disclaim its quality,
perfor mance, merchantability, or fitness for any particular purpose. We reserve the right to revise or
update its products, software, or documentation without obligation to notify any individual or entity.

2. Installation

This chapter describes the function of the switch components and
shows how to install it on your network. Basic knowledge of networking
is assumed. Read this chapter completely before installation.

2.1 Front View and LEDs

Figure 2.1-1 illustrates the front panel of the MicroGST-5 Switch;
Figure 2.1-2 illustrates the front panel of the MicroGST-8 Switch.

Table 2.1-1 describes the LED display of both switches.

Figure 2.1-1

Figure 2.1-2

Table 2.1-1

LED Status Color Description

Power On Green The switch is supplied with

suitable power.

LNK/ACT Blinks Green The port is receiving or

transmitting data.

2.2 Rear View

Figure 2.1-1 illustrates the rear panel of the MicroGST-5 Switch;
Figure 2.1-2 illustrates the rear panel of the MicroGST-8 Switch.

Table 2.2-1 shows the port function of both switches.

Figure 2.2-1

Figure 2.2-2

Table 2.2-1

wires of 1,2,3,6 are reversed so that wire 1 become 3 at the other end
of the cable, 2 becomes 6, and so forth.

To determine which wire is wire 1, hold the RJ-45 plug with the spring
clip facing towards the ground and the end pointing away from you. The
copper wires exposed upwards to your view. The first wire on the far left
is wire 1. You can also refer to the illustrations and charts of the
internal wiring on the following page.

Figure 3-1 shows the diagram of Straight Through Cables. Figure 3-2
shows the diagram of Crossover Cables.

Figure 3-1: Straight Through Cabling

Figure 3-2: Crossover Cabling

6 3

Port Function

1000Base-T Ports
5-Port: Por ts 1–5 These 5/8 Gigabit por ts connect to network
8-Port: Por ts 1–8 devices such as PCs, print servers and other

network peripherals at 1000 Mbps.

Power Connector This is where you will connect the AC

power adapter.

2.3 Installing the switch

The MicroGST-5 and 8 Switches do not need software configuration. To
install the switches, simply complete the following steps:

Step 1■Select a location for your switch.

■

Put the switch on a sturdy surface.

■

Keep enough ventilation space between the switch and the
surrounding objects.

Note: When choosing a location, keep in mind the
environmental restrictions discussed in Chapter 3,
Specifications.

Step 2 Connect the switch to network devices

■

Connect one end of a standard network cable to the RJ-45
ports on the back of the switch.

■

Connect the other end of the cable to the network devices
such as printer servers, workstations or routers.

Note: Connection to the Switch requires UTP Categor y 5 (or
greater) network cabling with RJ-45 plugs. For more
information, please see the Cabling Specification in Chapter
3, Specifications.

Step 3 Supply power to the Switch.

■

Connect one end of the power cable to the switch

■

Connect the power cube end of the power adapter cable to
a standard wall outlet.

When the switch receives power, the POWER LED and the LINK/ACT LED
should remain solid green.

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3. Specifications

3.1 Cable Specifications

Table 3-1 lists the cables you can use and their specifications.

Caution:

Please do not use telephone cables. Telephone cables do not support
Ethernet or Fast Ethernet

Table 3-1 Straight-Through and Crossover Cable Specifications

Twisted-pair cabling comes in various grades, or categories. Category 5
is required for Fast Ethernet, and is also the most reliable and most
commonly used categor y. You can buy UTP Category 5 (Unshielded
Twisted Pair) Ethernet cabling in pre-crimped lengths, or you can crimp
your own. Crimping your own can result in faulty connections if the RJ-45
plugs are not attached properly. Pre-crimped Category 5 cabling is
available at most computer retail stores.

The most reliable and commonly used type of Category 5 cabling used
is UTP, or “unshielded twisted pair.” STP, or “shielded twisted pair”
wiring is only necessary for network environments exposed to excessive
amounts of electromagnetic interference, or EMI. These environments
include areas with high sources of electrical power, air conditioning,
generators, and radio signals. STP is also used for wiring outdoors.

There are two types of the wiring: Straight-Through Cables and Crossover
Cables. Category 5 UTP/STP cable has eight wires inside the sheath.
The wires form four pairs. Straight-Through Cables have identical pinouts
at both ends while Crossover Cables have a different pin arrangement
at each end.

In a straight-through cable, wires 1,2,3,4,5,6,7 and 8 at one end of the
cable are still wires 1~8 at the other end. In a crossover cable, the

Ethernet Type Cable Requirement Maximum Length

10Base-T Category 3 or above, UTP or STP 328 ft (100M)

100Base-TX Categor y 5 or above, UTP or STP 328 ft (100M)

1000Base-T Category 5e or above, UTP or STP 328 ft (100M)