Black Box LE2690A Manual de usuario

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]

9-Port Personal MiniHub

LINK

PORT

9-Port Personal MiniHub

1234

PORT 9

PWR

LINK

UP LINK

5678

DECEMBER 2000

LE2690A

FEDERAL COMMUNICATIONS COMMISSION

and CANADIAN DEPARTMENT OF COMMUNICATIONS

RADIO FREQUENCY INTERFERENCE STATEMENT

Class B Digital Device.

This equipment has been tested and found to comply with

the limits for a Class B computing device pursuant to Part 15 of the FCC Rules.

These limits are designed to provide reasonable protection against harmful

interference in a residential installation. However, there is no guarantee that

interference will not occur in a particular installation. This equipment generates,

uses, and can radiate radio frequency energy, and, if not installed and used in

accordance with the instructions, may cause harmful interference to radio

communications. If this equipment does cause harmful interference to radio or

telephone reception, which can be determined by turning the equipment off and

on, the user is encouraged to try to correct the interference by one of the following

measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which

the receiver is connected.

• Consult an experienced radio/TV technician for help.

Caution:

Changes or modifications not expressly approved by the party

responsible for compliance could void the user’s authority to operate the

equipment.

To meet FCC requirements, shielded cables and power cords are required to

connect this device to a personal computer or other Class B certified device.

This digital apparatus does not exceed the Class B limits for radio noise emission from digital

apparatus set out in the Radio Interference Regulation of the Canadian Department of

Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites

applicables aux appareils numériques de classe B prescrites dans le Règlement sur le brouillage

radioélectrique publié par le ministère des Communications du Canada.

FCC AND CDC/MDC STATEMENTS

9-PORT PERSONAL MINIHUB

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 parato 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.

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.

NOM STATEMENT, TRADEMARKS

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 equio 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.

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.

CE Approval

This unit is CE approved.

TRADEMARKS USED IN THIS MANUAL

Velcro is a registered trademark of Velcro USA.

9-PORT PERSONAL MINIHUB

Contents

Chapter Page

1. Specifications ........................................................................................ 1

2. Introduction ......................................................................................... 3

2.1 General Overview .......................................................................... 3

2.2 Features and Benefits .................................................................... 4

2.3 Applications ................................................................................... 5

3. Installation ............................................................................................ 7

3.1 Before You Install: The Complete Package .................................. 7

3.2 The Installation Procedure ........................................................... 7

3.3 Cascading ..................................................................................... 10

4. Operation ........................................................................................... 11

4.1 LED Indicators ............................................................................ 11

4.2 Operating Features ...................................................................... 11

5. Troubleshooting ................................................................................. 13

5.1 Things to Check ........................................................................... 13

5.2 Calling Your Supplier ................................................................. 14

5.3 Shipping and Packaging .............................................................. 14

CHAPTER 1: Specifications

Compliance —

FCC Part 15 Class A and B, DOC Class/MDC classe B,

VDE Class B

Standard —

IEEE 802.3 Ethernet v. 1.0/2.0

Interface —

10BASE-T

Data Rate —

10 Mbps

Partitioning —

Automatic after 32 consecutive collisions

Reconnection —

Occurs after 512 bits of error-free transmission

Maximum

Segment Length —

UTP (unshielded 10BASE-T): 100 m (328 ft.);

STP (shielded 10BASE-T): 150 m (492 ft.)

User Controls —

Rear-mounted slide switch for straight-through vs.

crossover (uplink) operation

Indicators —

(18) Top-mounted recessed LEDs:

(1) Power; (9) Link (1 for each port); (8) RX (1 for

each front-panel port)

Connectors —

Shielded-type RJ-45 female: (8) front-mounted,

(1) rear-mounted

Leads/Signals

Supported —

Pins 1, 2, 3, and 6;

On front ports and (when set for straight-through

operation) the rear port: Receive +, Receive –,

Transmit +, and Transmit – respectively;

On rear port (set for crossed operation): Transmit +,

Transmit –, Receive +, and Receive – respectively

1. Specifications

9-PORT PERSONAL MINIHUB

Power —

From wallmount power supply:

Input: 120 VAC, 60 Hz;

Output: 12 VDC, 1 amp;

Consumption: 10 watts maximum

Enclosure —

High-strength steel

Cooling Method —

Convection

Operating

Temperature —

32 to 122˚ F (0 to 50˚ C)

Storage

Temperature —

–4 to 140˚ F (–20 to 60˚ C)

Humidity —

10 to 95% noncondensing

Size —

0.8"H x 5"W x 4.4"D (1.9 x 12.7 x 11.2 cm)

Weight —

Net: 1 lb. (0.5 kg);

Net plus power supply: 2 lb. (0.9 kg)

CHAPTER 2: Introduction

2.1 General Overview

The 9-Port Personal MiniHub is a workplace hub in a very compact

package. It is simple to install and use in an office or lab environment,

requiring no special rack cabinets or wiring-closet apparatus. It is a

standard physical-layer Ethernet product and operates independently of all

software.

Personal MiniHubs provide a simple and inexpensive solution for

networking a personal multi-system office using 10BASE-T twisted-pair

cabling. They can expand an existing single-network-port outlet to provide

up to eight extra ports in the immediate office or lab area.

Personal MiniHubs are also well suited for small-to-medium-size office or

lab environments (two to eight users) that need an independent Ethernet

network. They operate as self-sufficient units to provide 10BASE-T

Ethernet connectivity for local users and devices. Small independent

networks built using the 9-Port Personal MiniHubs are easily expanded by

taking advantage of the MiniHubs’ uplink-switchable port to add hubs of

equal or greater capacity in a cascade (see

Section 3.3

The small size of the Personal MiniHubs make them very useful for

demonstration situations in conference rooms and in exhibitions where a

temporary or expansion network is needed. The MiniHubs are also handy

as a piece of test equipment that can be easily inserted into the network to

provide a test port, and then removed after the testing is done. They take

up minimal space and use minimal power, and are rugged enough to be

carried in a coat pocket for possible emergencies.

Personal MiniHubs fit easily into the workplace environment. They can

be table-top- or shelf-mounted, or you can use the included Velcro®strip to

mount MiniHubs on walls or on the back or side of a desk or cabinet. All of

the wiring connectors are in the same plane so that wiring space is neat and

minimal. The external power supply conveniently plugs into an available

AC wall receptacle or power strip.

The 9-Port Personal MiniHub’s RJ-45 ports support connection of up to

nine workstations or other network devices over full-length 10BASE-T cable

segments. Personal MiniHubs fully comply with the IEEE 802.3

2. Introduction

9-PORT PERSONAL MINIHUB

specification for repeater functionality: They perform signal amplification,

retiming of data packets, and regeneration of preamble bits for each packet

received. They will also detect collisions, extend collision fragments, and

automatially partition and reconnect individual ports in order to keep

problems on one segment from causing downtime elsewhere on the

network.

Personal MiniHubs have LINK and RX LEDs for each front-panel RJ-45

port, located above the corresponding ports (see the illustration below), one

LINK LED for (and located above) the rear-panel port, and one LED for

AC power located at the rear above the external power-supply connection.

This makes observing the operation and status of the ports easy.

The included extemal wallmount power supply uses AC input power of

120 VAC/60 Hz. Its lightweight cord carries DC power to the barrel-type

power jack on the rear panel (shown below) of the MiniHub.

2.2 Features and Benefits

•

Interconnectability with Existing Ethernet Networks

Your 9-Port Personal MiniHub has a manual Up-Link switch that you

can use to cross the pinning of its rear port. In this setting, you can

connect 10BASE-T cable from an existing Ethernet environment (such

as the central hub for the building) to the MiniHub’s rear port.

•

Interoperability with Other Ethernet Devices

Personal MiniHubs are completely interoperable with other Ethernet-

compliant network devices. Each is fully compliant with IEEE 802.3

specifications for 10 Mbps CSMA/CD operation. This allows Personal

MiniHubs to be integrated into any standard Ethernet network.

Front-

panel

ports

Power

Jack

Rear-Panel

Port

Up-Link

Switch

LEDs

CHAPTER 2: Introduction

•

Installation Versatility

You can easily install Personal MiniHubs in almost any office or lab

location. The tiny package is very unobtrusive and is typically mounted

with Velcro.

•

Robust Netork Operation

Personal MiniHubs use the “star” network topology and have automatic

per-port partitioning and reconnection. A fault on one segment is

isolated from the rest of the network, avoiding most network downtime.

•

Simple Network Diagnosis and Maintenance with LEDs

Personal MiniHubs are equipped with a full complement of LEDs to

show the status of basic network activity. LINK LEDs for each port offer

a very simple way to verify operational connections for each 10BASE-T

segment.

•

Low-cost Standalone 10BASE-T Connectivity

Operating your Personal MiniHub in a standalone environment as a

self-sufficient device is a very low-cost method of providing small

workgroups access to a variety of Ethernet networking services such as

file sharing, email, printer sharing, and other computer information.

•

High-Quality Construction

Personal MiniHubs have rugged steel enclosures and are compliant

with rigid Class B emission standards, making them suitable for

commercial and home offices.

2.3 Applications

Expanding from one to multiple ports at an existing site is easy, and

requires no modification to typical building wiring. Simply plug the existing

networked device’s network-cable segment into one of the 9-Port Personal

MiniHub’s front-mounted RJ-45ports. With the MiniHub’s rear-mounted

Up-Link switch set to “

”, run 10BASE-T cable from the existing

network outlet to the MiniHub’s rear port. Then plug the DC power cord

of the MiniHub’s external power supply into the MiniHub’s power jack,

plug in the power supply’s transformer, and there you are: In minutes, you

have added eight new ports for other networked devices (see the illustration

at the top of the next page).

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