Black Box LB8422A-US Manual de usuario

June, 2006

Express

Ethernet Switch:

LB8422A-US

LB8421A-US

LB8424A-US

CUSTOMER

SUPPORT

INFORMATION

Order toll-free in the U.S. Call : 877-877-BBOX ( Outside U. S. call 724-746-5500 )

FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax

724-746-0746

Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018

Web site: www.blackbox.com • E-mail: [email protected]

Express Ethernet Switch: LB8422A-US, LB8421A-US, LB8424A-US

１

Table of Contents

Table of Contents........................................... １

Packing List.................................................... ２

FCC Statement ............................................... ２

Introduction.................................................... ３

Product Features ....................................................... ３

Front Panel ................................................................ ３

LEDs.......................................................................... ３

Installation...................................................... ４

Selecting a Site for the Switch................................... ４

Connecting to Your Network...................................... ５

Specifications................................................. ５

Express Ethernet Switch: LB8322A-US, LB8421A-US, LB8424A-US

２

Packing List

Please inspect the contents and report any apparent damage or missing items

immediately to our authorized reseller.

•The switch

•User’s Manual

•AC to DC power Adapter

FCC Statement

The FCC (Federal Communications Commission) restricts the amount of radio

frequency emission and radiation coming from computer equipment. The Ethernet

switch stated in this manual has been tested and found to comply with the limits for

a Class A digital 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 is required to correct the interference at

his/her own expense. Any changes or modifications not expressly approved by the

manufacture would void the user’s authority to operate the equipment.

Express Ethernet Switch: LB8422A-US, LB8421A-US, LB8424A-US

３

Introduction

The switch is a 6-port or 8-port Ethernet switch, integrating 10/100BaseTX

(100BaseFX) networks in a cost-effective pocket size package. The TX ports can

auto sense speed and half/full duplex modes and auto-MDIX.

Product Features

•4-port or 6-port for 10/100BaseTX.

•2-port for 100BaseFX.

•The TX ports auto negotiate for 10/100Mbps speed, auto detect full/half

duplex mode, and auto-MDIX.

•Choices of SC, ST, MT-RJ, VF-45, or LC connectors for multi-mode 100FX

ports.

•SC connectors for single-mode 100FX ports.

•Broadcast storming filter function.

•True non-blocking architecture.

•Full wire-speed forwarding rate.

•Store-and-forward mechanism.

•Back pressure and IEEE802.3x compliant flow control.

•Supports 2K MAC addresses.

•Supports 1M bits buffer memory.

•Front panel power and port status LEDs.

•Wall-mountable pocket size.

Front Panel

The front panel of the switch has an array of LED indicators to provide you with

instant feedback on the status of the switch.

LEDs

The array of LED indicators on the front panel conveys status and configuration

information to help you monitor and troubleshoot the switch.

nPower This LED comes on when the switch is connected to the power

adapter.

oPort Status Each port has a LED, indicating the port status.

Express Ethernet Switch: LB8322A-US, LB8421A-US, LB8424A-US

４

pPower Adapter Connect the supplied AC to DC adapter to the receptacle

on the back of the switch, then plug the cord into a standard AC outlet with a

voltage range from 100 to 240 VAC.

Table 1: Port Status

LED State Indication

Steady The port has established a valid network connection.

LNK stands for LINK.

LNK/

ACT Flashing The port is transmitting or receiving data.

ACT stands for ACTIVITY.

Installation

Selecting a Site for the Switch

As with any electronic device, you should place the switch where it will not be

subject to extreme temperatures, humidity, or electromagnetic interference.

Specifically, the site you select should meet the following requirements:

•The ambient temperature should be between 32 and 104 degrees Fahrenheit (0 to

40 degrees Celsius).

•The relative humidity should be less than 90 percent, non-condensing.

•Surrounding electrical devices should not exceed the electromagnetic field (RFC)

standards for IEC 801-3, Level 2 (3V/M) field strength.

•Make sure that the switch receives adequate ventilation. Do not block the

ventilation holes on the side of the switch or the fan exhaust port on the rear of the

switch.

•The power outlet should be within 1.8meter (6 feet) of the switch.

Express Ethernet Switch: LB8422A-US, LB8421A-US, LB8424A-US

５

Connecting to Your Network

Connect network cables from computers or network segments to the TX (FX) ports

on the back of the unit.

Table 2: Cabling Information

Speed Connector Port Speed

Half/Full Duplex Cable

100BaseTX RJ-45 100/200 Mbps 100 m, Category 5 STP/UTP

10BaseT RJ-45 10/20 Mbps 100 m, Category 3, 4, or 5

STP/UTP

100BaseFX

Multi-mode

SC, ST, MT-

RJ, VF-45, or

200 Mbps Up to 2km, 50 or 62.5/125µm

Multi-mode fiber cable

100BaseFX

Single-mode SC 200 Mbps Up to 75km, 9 or 10/125µm

Single-mode fiber cable

Specifications

Applicable Standards IEEE 802.3, 10BaseT,

IEEE 802.3u, 100BaseTX/FX

LED Indicators Per unit – Power Status

Per Port – LNK/ACT

Cable 10BaseT 2-pair UTP/STP Cat. 3,4,5, up to 100m

100BaseTX 2-pair UTP/STP Cat.5, up to 100m

100BaseFX 50 or 62.5/125µm Multi-mode fiber optic cable,

up to 2km

100BaseFX 9 or 10/125µm Single-mode fiber optic cable,

up to 75km

Switching Methods Store-and-Forward

Forwarding Rate 14,880pps for 10Mbps,

148,800pps for 100Mbps

AC Input 100~240VAC, 50-60Hz, external Universal power supply

Power consumption 12VDC, 0.6A, 7.2W

Operating Temperature 0°C~40°C (32°F~104°F)

Storage Temperature -25°C~70°C (-13F°~158°F)

Humidity 10%~90%, non-condensing

Emissions FCC part 15 ClassA, CE Mark

Dimensions W160 x D81 x H28mm pocket size

Weight 0.42kg (0.92lb.)

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