Black Box LGB408A Instruction manual

Chapter

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]

Customer

Support

Information

BL A C K B O X®

Provides (8) 10-/100-/1000-Mbps RJ-45

ports.

8-Port Gigabit Unmanaged Switch

LGB408A

724-746-5500 | blackbox.com

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Trademarks Used in this Manual

Black Box and the Double Diamond logo are registered

trademarks of BB Technologies, Inc.

Mac is a registered trademark of Apple Computer, Inc.

Any other trademarks mentioned in this manual are

acknowledged to be the property of the trademark owners.

724-746-5500 | blackbox.com Page 3

FCC and IC RFI Statements

FEDERAL COMMUNICATIONS COMMISSION

AND INDUSTRY CANADA RADIO FREQUENCY

INTERFERENCE STATEMENTS

This equipment generates, uses, and can radiate radio-

frequency energy, and if not installed and used properly, that

is, in strict accordance with the manufacturer’s instructions, may

cause interference to radio communication. It has been tested

and found to comply with the limits for a Class A computing

device in accordance with the specifications in Subpart B of

Part 15 of FCC rules, which are designed to provide reasonable

protection against such interference when the equipment

is operated in a commercial environment. Operation of this

equipment in a residential area is likely to cause interference,

in which case the user at his own expense will be required

to take whatever measures may be necessary to correct

the interference.

Changes or modifications not expressly approved by the party

responsible for compliance could void the user’s authority to

operate the equipment.

This digital apparatus does not exceed the Class A limits for

radio noise emission from digital apparatus set out in the Radio

Interference Regulation of Industry Canada.

Le présent appareil numérique n’émet pas de bruits

radioélectriques dépassant les limites applicables aux appareils

numériques de classe A prescrites dans le Règlement sur le

brouillage radioélectrique publié par Industrie Canada.

724-746-5500 | blackbox.com

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NOM Statement

Normas Oficiales Mexicanas (NOM)

Electrical Safety Statement

INSTRUCCIONES DE SEGURIDAD

1. Todas las instrucciones de seguridad y operación deberán

ser leídas antes de que el aparato eléctrico sea operado.

2. Las instrucciones de seguridad y operación deberán ser

guardadas para referencia futura.

3. Todas las advertencias en el aparato eléctrico y en sus

instrucciones de operación deben ser respetadas.

4. Todas las instrucciones de operación y uso deben ser

seguidas.

5. El aparato eléctrico no deberá ser usado cerca del agua—

por ejemplo, cerca de la tina de baño, lavabo, sótano

mojado o cerca de una alberca, etc.

6. El aparato eléctrico debe ser usado únicamente con

carritos o pedestales que sean recomendados por el

fabricante.

7. El aparato eléctrico debe ser montado a la pared o al

techo sólo como sea recomendado por el fabricante.

8. Servicio—El usuario no debe intentar dar servicio al

equipo eléctrico más allá a lo descrito en las instrucciones

de operación. Todo otro servicio deberá ser referido a

personal de servicio calificado.

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NOM Statement

9. El aparato eléctrico debe ser situado de tal manera que su

posición no interfiera su uso. La colocación del aparato

eléctrico sobre una cama, sofá, alfombra o superficie

similar puede bloquea la ventilación, no se debe colocar

en libreros o gabinetes que impidan el flujo de aire por los

orificios de ventilación.

10. El equipo eléctrico deber ser situado fuera del alcance de

fuentes de calor como radiadores, registros de calor,

estufas u otros aparatos (incluyendo amplificadores) que

producen calor.

11. El aparato eléctrico deberá ser connectado a una fuente

de poder sólo del tipo descrito en el instructivo de

operación, o como se indique en el aparato.

12. Precaución debe ser tomada de tal manera que la tierra

fisica y la polarización del equipo no sea eliminada.

13. Los cables de la fuente de poder deben ser guiados de tal

manera que no sean pisados ni pellizcados por objetos

colocados sobre o contra ellos, poniendo particular

atención a los contactos y receptáculos donde salen del

aparato.

14. El equipo eléctrico debe ser limpiado únicamente de

acuerdo a las recomendaciones del fabricante.

15. En caso de existir, una antena externa deberá ser

localizada lejos de las lineas de energia.

16. El cable de corriente deberá ser desconectado del cuando

el equipo no sea usado por un largo periodo de tiempo.

17. Cuidado debe ser tomado de tal manera que objectos

liquidos no sean derramados sobre la cubierta u orificios

de ventilación.

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NOM Statement

18. Servicio por personal calificado deberá ser provisto

cuando:

A: El cable de poder o el contacto ha sido dañado; u

B: Objectos han caído o líquido ha sido derramado dentro

del aparato; o

C: El aparato ha sido expuesto a la lluvia; o

D: El aparato parece no operar normalmente o muestra un

cambio en su desempeño; o

E: El aparato ha sido tirado o su cubierta ha sido dañada.

724-746-5500 | blackbox.com Page 7

Table of Contents

1. Specifications........................................................................ 8

2. Overview ............................................................................. 9

2.1 Introduction ................................................................. 9

2.2 Features........................................................................ 9

2.3 What’s Included ......................................................... 10

2.4 Hardware Description ................................................ 10

2.4.1 Front Panel ........................................................ 10

2.4.2 Back Panel......................................................... 12

3. Installation........................................................................... 13

3.1 Connecting the Switch to PCs, Servers, and Other

Network Devices ........................................................ 13

3.2 Connecting the Switch to a Switch or Hub................ 13

3.3 Application Diagram .................................................. 14

4. Operation ........................................................................... 15

Appendix. Troubleshooting..................................................... 16

A.1 Contacting Black Box ................................................. 16

A.2 Shipping and Packaging............................................. 16

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Chapter 1: Specifications

1. Specifications

Buffer Memory — RAM: 3.5 MB per device

Filtering/Forwarding Rate — 10-Mbps ports: 14,880 pps,

100-Mbps ports: 148,800 pps,

1000-Mbps ports: 1,488,000 pps

Flow Control — Full-duplex mode: IEEE 802.3x;

Half-duplex mode: Backpressure

JUMBO packet — Supports 9 KB

MAC Address — Up to 4K MAC address entry per device

Network Transmission Media — 10BASE-T CAT3, 4,

or 5 UTP/STP; 100BASE-TX CAT5 UTP/STP;

1000BASE-T CAT5 UTP/STP

Standards Compliance — IEEE 802.3 10BASE-T; IEEE 802.3u

100BASE-TX and IEEE 802.3ab 1000BASE-T copper

over Ethernet

Connectors — (8) integrated RJ-45 ports (10-/100-/

1000-Mbps)

Indicators — (17) LEDs: (1) Power, (8) 1000M, (8) Link/Act.

Temperature Tolerance — Operating: 32 to 140° F

(0 to 60° C);

Storage: -4 to +194° F (-20 to +90° C)

Relative Humidity — 10–90%, noncondensing

Power — Input: 90–240 VAC, 50–60 Hz;

Consumption: 20 W (max.)

Size — 1.7"H x 4.8"W x 8.9"D (4.4 x 12.3 x 22.8 cm)

Weight — 3.9 lb. (1.8 kg)

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Chapter 2: Overview

2. Overview

2.1 Introduction

The Switch provides eight 10-/100-/1000-Mbps RJ-45 ports. It

was designed for easy installation and high performance in an

environment where traffic on the network and the number of

users increase continuously. With its Gigabit chip set, the 9"

Gigabit Ethernet Switch can fully support the highest speed even

when fully loaded and running in full-duplex mode.

The switch also provides automatic crossover detection function-

ality on each port. It’s easy to uplink to another switch without

crossover cable.

This quiet switch operates without a fan.

The compact rigid desktop size was specifically designed for

Remote Office and Branch Office (ROBO) and medium to large

workgroups. You can install the switch where space is limited. It

provides smooth network migration and easy upgrades to

network capacity. The 9" size can be rackmounted on a 10” or

19” cabinet.

2.2 Features

• Complies with the IEEE 802.3 Ethernet, IEEE 802.3u Fast

Ethernet and IEEE 802.3ab Gigabit Ethernet standards.

• Provides eight 10-/100-/1000-Mbps Gigabit switching ports.

• Performs full wire-speed switching with Head of Line (HOL)

blocking prevention.

• Provides non-blocking and non-head-of-line blocking full

wire-speed forwarding.

• Supports store-and-forward operation.

• Has embedded 3.5 MB SRAM for packet buffer.

• Supports 9 KB JUMBO packets.

• Provides 4K MAC address entry.

• Supports broadcast storm filtering.

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Chapter 2: Overview

• All ports provide Auto-Negotiation and Auto-MDI/MDI-X

functions.

• Supports flow control: backpressure for half-duplex and IEEE

802.3x for full-duplex mode

• Includes (17) LEDs: (1) Power, (8) 1000M, and (8) Link/Act.

• Configurable to 10-Mbps full-/half-duplex, 100-Mbps full-/

half-duplex and 1000-Mbps full-/half-duplex for each port.

• 9” inch compact size, rackmountable to 10" and 19" with

bracket.

2.3 What’s Included

Your package should contain the following items. If anything is

missing or damaged, contact Black Box Technical Support at

724-746-5500 or info@blackbox.com.

• (1) 8-Port Gigabit Unmanaged Switch

• (1) AC power cord

• (2) 19" rackmounting brackets

• This user’s manual

2.4 Hardware Description

2.4.1 Front Panel

Figure 2-1 shows the front panel of the switch. Table 2-1

describes its components.

Figure 2-1. Front panel.

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