Uni-Com Fep-31024t-2 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]

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

Rev: 09.05

24 Port 10/100Base-TX

Fast Ethernet Switch

Dyna-Switch/24

USER’S MANUAL

FEP-31024T-2

rev. 2

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

νConforms to IEEE 802.3, 802.3u, and 802.3x

ν24-port 10/100Base-TX Switch with Auto-MDIX

νIEEE 802.3x flow control support

¬Flow control on full-duplex

¬Back pressure on half-duplex

νN-Way Auto-Negotiation supported

νStore-and-Forward switching architecture

νNo-blocking full wire speed

νEmbedded 1.25Mbits memory buffer

νSupport IEEE802.1p Class of Service

ν4K-entry MAC address table

ν4.8 Gbps switch back-plane

ν19” standard size

Package Contents

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

against the checklist below.

νDYNA-SWITCH/24 (Rev. 2.0) Switch

νPower Cord

νFour Rubber Feet

νUser manual

νRack 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.

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.

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.

LED Indicators

The LED Indicators gives real-time information of systematic operation status.

The following table provides descriptions of the LED status.

The Descriptions of LED Indicators

LED

Status

Description

Green

Power On

Powe

Off

Power is not connected

Green

The port is connecting with the device.

Blinks

The port is receiving or transmitting data.

LK/A

Off

No device attached.

Orange

The port is operating in Full-duplex mode.

Blinks

Collision of Packets occurs in the port.

FD/C

Off

No device attached or in half-duplex

mode.

Rear Panel

The 3-pronged power plug is located at the rear panel of the

DYNA-SWITCH/24 as shown in the figure. The switch will work with AC in the

100-240V AC, 50-60Hz range.

The rear panel of the DYNA-SWITCH/24

Desktop Installation

Set the switch on a sufficiently large flat space with a power outlet nearby.

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

enough clearance around the Switch to allow air circulation and the

attachment of cables and the power cord.

Attaching Rubber Feet

1. Make sure mounting surface on the bottom of the Switch is grease and

dust free.

2. Remove adhesive backing from your Rubber Feet.

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

footpads can protect the Switch from shock and vibration.

Rack-mounted Installation

The DYNA-SWITCH/24 comes with a rack-mounting kit (not a standard

option for this switch) and can be mounted in any EIA standard sized, 19"

rack. The Switch can then be placed in a wiring closet with other equipment.

Perform the following steps to rack mount the switch:

1. Position one bracket to align with the holes on one side of the switch and

secure it with the smaller bracket screws. Then attach the remaining

bracket to the other side of the Switch.

Attach mounting brackets with screws

2. After attached both mounting brackets, position the DYNA-SWITCH/24 in

the rack by lining up the holes in the brackets with the appropriate holes

on the rack. Secure the switch to the rack with a screwdriver and the

rack-mounting screws.

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 external

power supplies AC in the 100-240VAC voltage range, frequency 50~60Hz.

Check the power indicator on the front panel to ensure power is properly

supplied.

Network Application

This section provides a few samples of network topology in which the switch

is used. The DYNA-SWITCH/24 (Rev. 2.0) is designed to be used as a

segment switch. With its large address table (4K MAC address) and high

performance, it is ideal for interconnecting networking segments.

PC, workstations, and servers can communicate with each other by directly

connecting with the DYNA-SWITCH/24. The switch automatically learns

nodes address, which are subsequently used to filter and forward all traffic

based on the destination address.

By using any port as an Uplink port, the Switch can connect with another

switch or hub. This connects each of your small-switched workgroups to form

a larger switched network.

Small Workgroup

The DYNA-SWITCH/24 can be used as a standalone switch to which

personal computers, servers, or a printer server are directly connected to

form a small workgroup.

Small Workgroup Application

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