UNICOM Electric fep-31024t-2 User Manual

24 Port 10/100Base-TX

Fast Ethernet Switch

Dyna-Switch/24

USER’S MANUAL

FEP-31024T-2

rev. 2

1

Introduction

UNICOM’s DYNA-SWITCH/24 (Rev. 2.0) is a 24-port 10/100BASE-TX

Switch that can be used to build high-performance switched workgroup

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

high-speed networking and is targeted at workgroup, department or

backbone computing environments in SME (small, medium enterprise)

businesses.

The DYNA-SWITCH/24 (Rev. 2.0) Switch features a “store-and-forward

“ switching scheme. This allows the switch to auto-learn and store source

address on a 4K-entry MAC address table. It also supports Class of Service

functions. No manual configuration is necessary. The CoS function is

included in the switch firmware and will operate automatically when the

switch is on.

Features

ν Conforms to IEEE 802.3, 802.3u, and 802.3x

ν 24-port 10/100Base-TX Switch with Auto-MDIX

ν IEEE 802.3x flow control support

¬ Flow control on full-duplex

¬ Back pressure on half-duplex

ν N-Way Auto-Negotiation supported

ν Store-and-Forward switching architecture

ν No-blocking full wire speed

ν Embedded 1.25Mbits memory buffer

ν Support IEEE802.1p Class of Service

ν 4K-entry MAC address table

ν 4.8 Gbps switch back-plane

ν 19” standard size

2

Package Contents

Unpack the contents of the DYNA-SWITCH/24 (Rev. 2.0) and verify them

against the checklist below.

ν DYNA-SWITCH/24 (Rev. 2.0) Switch

ν Power Cord

ν Four Rubber Feet

ν User manual

ν Rack Mount kits

DYNA-SWITCH/24 (Rev. 2.0) User manual Rubber Feet

Power Cord Rack-Mount Kits

Package Contents

Compare the contents of your DYNA-SWITCH/24 (Rev. 2.0) package with

the standard checklist above. If any item is missing or damaged, please

contact your local dealer for service.

3

Ethernet Switching Technology

Ethernet Switching Technology has dramatically boosted the total bandwidth

of networks, eliminated congestion problems inherent with Carrier Sense

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

reduced unnecessary transmissions.

This revolutionized networking. First, by allowing two-way, simultaneous

transmissions over the same port (Full-duplex), which essentially doubled the

bandwidth. Second, by reducing the collision domain to a single switch-port,

which eliminated the need for carrier sensing. Third, by using the

store-and-forward technology’s approach of inspecting each packet to

intercept corrupt or redundant data, switching eliminated unnecessary

transmissions that slow a network. This is accomplished by employing

address learning which replaced the inefficient receiving port.

Auto-negotiation regulates 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-negotiation and

flow-control may require the disabling of some networking operations

involving legacy equipment. Disabling the auto-negotiation is accomplished

by fixing the speed or duplex of a port.

Ethernet Switching Technology has supplied higher performance at costs

lower than other solutions. Wider bandwidth, no congestion, and the

reduction in traffic is why switching is replacing expensive routers and

inefficient hubs as the ultimate networking solution. Switching brings a whole

new way of thinking to networking.

4

Hardware Description

This section describes the hardware of the DYNA-SWITCH/24 and gives a

physical and functional overview of this Switch.

Physical Dimension

The physical dimension of the DYNA-SWITCH/24 is 440mmx 120 mm x

44mm (L x W x H)

Front Panel

The front panel of the DYNA-SWITCH/24 consists of (24) 10/100Base-TX

RJ-45 ports. The LED Indicators are also located on the front panel of the

Switch.

Front panel of the DYNA-SWITCH/24 (Rev. 2.0)

RJ-45 ports (Auto MDI/MDIX): (24) 10/100Mbps auto-sensing ports for

10Base-T or 100Base-TX device connections.

MDI (Medium Dependent Interface) ports are also called "uplink ports”.

The MDI ports do not cross transmit and receive lines, which is done by the

regular ports (MDI-X ports) that connect to end stations. MDI means

connecting to another Hub or Switch while MDIX means connecting to a

workstation or PC. Therefore, Auto MDI/MDIX means that you can connect

to another Switch or workstation with either crossover or non-crossover

cabling.