Black Box TL170A Bedienungsanleitung

JANUARY 1997

TL170A

TL170AE

RS-485 Repeater Hub

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]

POWER

CPU

PORT 4

PORT 3

PORT 2

PORT 1

RS485 Repeater Hub

RS-485 REPEATER HUB

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.

RS-485 REPEATER HUB

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.

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.

RS-485 REPEATER HUB

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.

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.

RS-485 REPEATER HUB

TRADEMARKS USED IN THIS MANUAL

UL is a registered trademark of Underwriters

Laboratories Incorporated.

Any other trademarks mentioned in this manual are

acknowledged to be the property of the trademark owners.

RS-485 REPEATER HUB

1. Specifications

Interface — RS-485 2-wire

Protocol — Asynchronous

Data Rates — Up to 115,200 bps

Indicators — (6) LEDs: Ports 1 through 4,

Power, and CPU

Connectors — (5) DB9 female, (1) 5-pin

DIN power input

Enclosure — Metal

Approvals — Power supply: UL®, CSA

MTBF — 100,000 hours

Maximum

Altitude — 15,000 feet (4570 m)

Operating

Temperature — 32 to 158°F (0 to 70°C)

Relative Humidity

Tolerance — 10 to 95%, noncondensing

RS-485 REPEATER HUB

Power — TL170A: 115 VAC, 60 Hz,

17 VAC (center-tapped),

20 watts;

TL170AE: 230 VAC,

50 Hz, 17 VAC (center-

tapped), 20 watts

Size — 1.5"H x 6.75"W x 7"D

(3.8 x 17.2 x 17.8 cm)

Weight — 3 lb. (1.4 kg)

RS-485 REPEATER HUB

2. Introduction

The RS-485 Repeater Hub expands one RS-485

2-wire port to four RS-485 2-wire ports. The CPU

port connects to your existing 2-wire multidrop line

as usual, and up to four RS-485 2-wire lines may be

connected to the remaining ports.

A typical application uses a polled environment

where a master device polls the connected

equipment, and each unit has a unique identity. All

connected devices receive the poll from the master,

but only the device whose identity matches the poll

request will respond.

The RS-485 Repeater Hub delivers the poll request

to all four ports and delivers the response to the CPU

port. The Hub contains terminations that can be

applied by installing the appropriate internal shunt.

You can select termination individually for each port,

including the CPU port.

All ports have LED indicators, which flash when the

Hub receives data. A Power LED glows steadily when

proper power is supplied.

All data connections are made via female DB9

connectors. The metal case is internally grounded

RS-485 REPEATER HUB

to the earth ground carried to the AC wall receptacle

via the wallmount transformer. Using the two tabs in

the enclosure, the Hub can be mounted on a flat

surface.

You can also install a surge-suppressed power strip

between to AC transformer and the AC line to

provide additional protection to the Hub. When

using a power strip, make sure the earth-ground

connection is secure from the AC outlet through

the strip to the Hub.

You can special-order an RS-485 Repeater Hub with

an optional surge protector built into the unit. Call

Technical Support for more information.

RS-485 REPEATER HUB

3. Installation

WARNING!

Ground-potential differences are a hazard not only to

your equipment, but to you as well. During installation,

never work with any device connected to the AC power

line. Make all connections to all devices before

connecting any of them to sources of AC power.

1. Keeping in mind the warning above, position

the RS-485 Repeater Hub in a clean, stable

environment near a 115-volt AC power source.

Fasten the Hub to a flat surface using two #10

screws.

NOTE

The Hub’s metal enclosure is connected to earth ground

via the AC transformer. The surface to which the Hub is

mounted should also be at local earth-ground potential

if the surface is metal. Fastening the Hub with screws

which scuff the paint on the Hub’s mounting tabs will

establish an earth-ground connection to a metal

mounting surface.

2. Route your main data cable from the main data

line to the Hub’s CPU port. Secure the

connections by tightening the data connector’s

screwlocks.

3. Route up to four more data cables from your

devices to the remaining port(s) on the Hub.

Secure the connectors.

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