Uni-Com FEP-32024T Manuale utente

908 Canada Court

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

Phone: 626.964.7873 or 800.346.6668 Fax: 626.964.7880

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

www.unihomenetworkingbox.com

©UNICOM 2005. UNICOM and “A Network Systems Solution” are trademarks of UNICOM Electric, Inc.

Rev: 01.05

24 Port 10/100Mbps

Desktop Fast Ethernet Switch

(Auto MDI/MDIX)

Micro-Switch/24

USER’S MANUAL

FEP-32024T

Content

1. Introduction .............................................................. 1

Features ...................................................................... 1

Package Contents...................................................... 2

Ethernet Switching Technology............................... 3

2. Hardware Descri tion.............................................. 4

Front Panel ................................................................. 4

LED Indicators............................................................ 4

Rear Panel................................................................... 5

Deskto Installation................................................... 6

3. Network A lication ................................................ 7

4. Troubleshooting..................................................... 10

5. Technical S ecification ......................................... 12

1. Introduction

The 24 Port Micro-Switch/24 Desktop Fast Ethernet Switch is a multi-port

Switch that can be used to build hi h-performance switched work roup

networks. This switch is a store-and-forward device that offers low latency

for hi h-speed networkin . It is tar eted at work roup, department, or

backbone computin environments in SME (small, medium enterprise)

businesses.

The Micro-Switch/24 features a “store-and-forward “switchin scheme. This

allows the switch to auto-learn and store source addresses on a 4K-entry

MAC address table.

Features

 Conforms to IEEE 802.3, 802.3u and 802.3x

 Twenty-four (24) 10/100 Base-TX RJ-45 Ethernet ports

 Auto-MDIX on all ports

 IEEE 802.3x flow control support

 Flow control on full-duplex

 Back pressure on half-duplex

 N-Way Auto-Ne otiation supported

 Store-and-Forward switchin architecture and no-blockin full wire

speed

 Back plane Bandwidth 4.8 Gbps)

 Embedded 1.25Mbits memory buffer

 4K MAC address table

 Compact 10” size

Package Contents

Unpack the contents of the Micro-Switch/24 Desktop Fast Ethernet Switch

and verify them a ainst the checklist below.

 Micro-Switch/24 Desktop Fast Ethernet Switch

 User Guide

 Power Cord

 Four Rubber Feet

Micro-Switch/24 User Guide

Power Cord Rubber Feet

Fi ure 1-2. Packa e Contents

Compare the contents of your Micro-Switch/24 packa e with the standard

checklist above. If any item is missin or dama ed, please contact your local

dealer for service.

Ethernet Switching Technology

Ethernet Switchin Technolo y dramatically boosted the total bandwidth of a

network, eliminated con estion problems inherent with Carrier Sense

multiple access with Collision Detection (CSMA/CD) protocol, and reatly

reduced unnecessary transmissions.

This revolutionized networkin in a number of ways. First, by allowin two-

way, simultaneous transmissions over the same port (Full-duplex) which

essentially doubled the bandwidth. Second, by reducin the collision domain

to a sin le switch-port which eliminated the need for carrier sensin . Third,

by usin the store-and-forward technolo y’s approach of inspectin each

packet to intercept corrupt or redundant data and switchin eliminated,

unnecessary transmissions that slow the network. Also employin an

address learnin function, Ethernet replaced inefficient receivin ports.

Auto-ne otiation re ulates the speed and duplex of each port, based on the

capability of both devices. Flow-control allows transmission from a 100Mbps

node to a 10Mbps node without loss of data. Auto-ne otiation and flow-

control may require disablement of some networkin operations that involve

le acy equipment. Disablin the auto-ne otiation is accomplished by

manually settin the speed or duplex of a port.

Ethernet Switchin Technolo y supplied hi her performance at costs lower

than other solutions. Wider bandwidth, no con estion, and the reduction in

traffic is why switchin is replacin expensive routers and inefficient hubs as

the ultimate networkin solution. Switchin brou ht a whole new way of

thinkin to networkin .

2. Hardware Descri tion

This Section describes the hardware of the Micro-Switch/24 Desktop Fast

Ethernet Switch/.

The physical dimensions of the Micro-Switch/24 are: 250mmx 133 mm x

37mm (L x W x H)

Front Panel

The Front Panel of the Micro-Switch/24 consists of twenty-four (24)

10/100Base-TX RJ-45 ports. The LED Indicators are also located on the

front panel of the Switch.

Fi ure 2-1. The Front panel

RJ-45 orts (Auto MDI/MDIX): Twenty-four (24) 10/100Mbps auto-sensin

ports for 10Base-T or 100Base-TX device connection.

[Auto MDI/MDIX means that you can connect to another switch or

workstation with either strai ht-throu h or crossover cablin .]

LED Indicators

The LED Indicators ives real-time information of systematic operation

status. The followin table provides descriptions of LED status.

Fi ure 2-2. LED Indicators

LED Status Descri tion

Green Power is supplied

Power Off Power is not connected

Green The port is connectin with the device

Blinks The port is receivin or transmittin data

LK/ACT

Off No device attached

Table 2-1. Descriptions of LED Indicators

Rear Panel

The 3-pron ed power plu is located at the rear panel of the Micro-Switch/24

as shown in Fi ure 2-3. The Switch will work with AC in the ran e 100-240V

AC, 50-60Hz.

Fi ure 2-3. The Rear Panel of the Micro-Switch/24

Deskto Installation

Set the Switch on a sufficiently lar e flat space with a power outlet nearby.

The surface should be clean, smooth, level, and sturdy. Ensure there is

enou h clearance around the Switch to allow air circulation and the

attachment of the power cord and cables.

Attaching Rubber Feet

A. Make sure mountin surface on the bottom of the Switch is rease and

dust free.

B. Remove adhesive backin from your Rubber Feet.

C. Apply the Rubber Feet to each corner on the bottom of the Switch. These

footpads protect the Switch from shock and vibration.

Fi ure 2-4. Attachin Rubber Feet to each corner on the bottom of the Switch

Power On

Connect the power cord to the power socket on the rear panel of the Switch.

The other side of power cord connects to the power outlet. The internal

power supply in the Switch works with AC in the volta e ran e 100-240VAC,

frequency 50~60Hz.Check the power indicator on the front panel to ensure

that power is properly supplied.

3.Network A lication

This section provides a few samples of network topolo y in which the Switch

is used. In eneral, the Micro-Switch/24 Desktop Fast Ethernet Switch is

desi ned as a se ment switch. That is, with its lar e address table (4K MAC

address) and hi h performance, it is ideal for interconnectin networkin

se ments.

You can also use the Micro-Switch/24 to connect PCs, workstations, and

servers to each other by connectin these devices directly to the Switch. The

switch automatically learns node addresses, which are subsequently used to

filter and forward all traffic based on the destination address. The Switch can

connect with another switch or hub to interconnect each of your small,

switched work roups to form a lar er switched network.

Small Workgrou

The Micro-Switch/24 can be used as a standalone switch to which personal

computers, servers, and printer servers are directly connected to form a

small work roup.

Fi ure 3-1. Small Work roup Application

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