Black Box SW980A Manuale utente

CUSTOMER

SUPPORT

INFORMATION

Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX

FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746

Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018

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

MARCH 2000

SW980A SW980AE

SW981A SW981AE

SW982A SW982AE

Local/Remote Electronic Switches

2 TO 1

LOCAL / REMOTE

SWITCH

PWR

REMOTE

A B

BLACK BOX

724-746-5500

FCC/IC/CE 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 J 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 la classe A prescrites dans le Règlement sur le

brouillage radioélectrique publié par Industrie Canada.

EUROPEAN UNION DECLARATION OF CONFORMITY

This equipment complies with the requirements of the European EMC Directive

89/336/EEC.

LOCAL/REMOTE ELECTRONIC SWITCHES

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.

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 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.

TRADEMARKS USED IN THIS MANUAL

Any trademarks used in this manual are acknowledged to be the property of the trademark

owners.

LOCAL/REMOTE ELECTRONIC SWITCHES

Contents

Chapter Page

1. Specifications ............................................................................................. 5

2. Introduction ............................................................................................... 7

3. Installation and Configuration ................................................................. 8

3.1 Before You Install ................................................................................ 8

3.2 The Setup Procedure .......................................................................... 9

4. Operation ................................................................................................. 17

4.1 Local Switching ................................................................................. 17

4.1.1 ABC and ABCDE Switches (SW980 and SW982 Units) ........ 17

4.1.2 X Switches (SW981 Units) ...................................................... 18

4.2 Remote Switching ............................................................................. 19

4.2.1 ABC and ABCDE Switches (SW980 and SW982 Units) ........ 19

4.2.2 X Switches (SW981 Units) ...................................................... 19

4.3 Test Results ........................................................................................ 22

5. Troubleshooting ...................................................................................... 23

5.1 Calling Black Box .............................................................................. 23

5.2 Shipping and Packaging ................................................................... 23

CHAPTER 1: Specifications

1. Specifications

Compliance — FCC Part 15 Subpart J Class A, IC Class/classe A

Data Rate — Up to 256 kbps typical; higher speeds possible with

careful consideration of cabling and equipment

requirements

User Controls — All models: Remote switching either through TTL,

RS-232, RS-422/485, or other active drivers or

through dry-contact closure;

SW980 and SW982 models: (1) Rear-mounted

2-position DIP switch for grounding;

SW981 models: (2) Rear-mounted 2-position DIP

switches for grounding

Indicators — Front-mounted LEDs:

All models: (1) for Power;

SW980 models: (2) for Active Port;

SW981 models: (1) for Straight, (1) for Crossed;

SW982 models: (4) for Active Port

Connectors — All models: (1) Rear-mounted RJ-45 female,

(1) Internal 4-position terminal block;

SW980 models: (3) Rear-mounted DB25 female;

SW981 models: (4) Rear-mounted DB25 female;

SW982 models: (5) Rear-mounted DB25 female

Leads Supported — DB25: All

Signal Levels — Between ±15 VDC maximum for all leads

“On” Resistance

Through Switch — SW980 and SW981 models: 35 ohms maximum,

22 ohms typical;

SW982 models: 100 ohms maximum, 40 ohms typical

Port-to-Port

Switching Speed

Using Remote

Inputs — Less than 1 µs

LOCAL/REMOTE ELECTRONIC SWITCHES

Remote Input

Logic Levels — VIH greater than 2.5 volts, maximum +15 volts;

VIL less than 0.5 volts, minimum –15 volts

NOTE

For dry-contact operation, the total external-

connection DC resistance must be less than

240 ohms when the dry contact is closed for the

Local/Remote Electronic Switch to correctly

read this condition as a “low” input.

Power — SW980A, SW981A, SW982A:

From wallmount power supply PS154:

Input: 120 VAC, 60 Hz;

Output: 17 VAC CT;

SW980AE, SW981AE, SW982AE:

From wallmount power supply PS154E:

Input: 230 VAC, 50 Hz;

Output: 17 VAC CT;

Consumption: 1 watt

MTBF — 65,000 hours

Operating

Temperature — 32 to 140˚F (0 to 60˚C)

Storage

Temperature — –4 to +158˚F (–20 to +70˚C)

Humidity — Up to 95% noncondensing

Enclosure — High-impact plastic

Size — SW980 and SW981 models: 2.5"H x 6"W x 6.3"D

(6.4 x 15.2 x 16 cm);

SW982 models: 3.5"H x 6"W x 6.3"D

(8.9 x 15.2 x 16 cm)

Weight — 1.5 lb. (0.7 kg)

CHAPTER 2: Introduction

2. Introduction

Switching between data lines manually can often damage the connected

equipment, because this relatively slow and imprecise action can cause data-line

surges and spikes large enough to damage today’s sensitive circuitry. With the

Local/Remote Electronic Switches, you can eliminate this potential hazard. Their

electronic switching action provides surgeless, spikeless changeovers—something

a mechanical switch just can’t do.

In addition, these switches can be controlled remotely, from a convenient

out-of-sight location.

The stock models available are:

SW980A 115-VAC 2-to-1 Switch

SW980AE 230-VAC 2-to-1 Switch

SW981A 115-VAC “X” (2-to-2) Switch

SW981AE 230-VAC “X” (2-to-2) Switch

SW982A 115-VAC 4-to-1 Switch

SW982AE 230-VAC 4-to-1 Switch

These Switches can also be cascaded to allow a larger number of ports

to be switched.

LOCAL/REMOTE ELECTRONIC SWITCHES

3. Installation and Configuration

3.1 Before You Install

Check the box and its contents before you begin installing your Local/Remote

Electronic Switch. You should have received one Switch unit, one AC power supply,

and one copy of this manual. If you didn’t receive all of these items, or if they have

sustained damage that does not seem to be shipping-related, notify Black Box right

away. If they have sustained impact or water damage that seems to have happened

during shipping, notify both Black Box and the shipping carrier immediately.

Unpack the box carefully. We recommend that you save the original container

and its packing materials in case you need to ship the Switch later.

You’ll need to install the Switch within 6 feet (1.8 m) of an AC outlet. Also,

keep the Switch away from water and extreme temperatures.

Make sure you have the proper cables or adapters. Whatever interface you want

to switch (RS-232, RS-422, RS-485, V.35, TTL, etc.), you must use either cables with

DB25 male connectors or adapters that convert the interface from your cables’

connectors to DB25 male connectors. To perform remote switching, you must use

an appropriate length of cable that has at least four wires. If you intend to connect

it to the Switch’s internal terminal block, this cable must be unterminated at the

Switch end. If you intend to connect it to the Switch’s “REMOTE” connector, this

cable must have wires pinned to Pins 3 through 6 of a male RJ-45 connector at the

Switch end. (If you must use existing cables that do not meet these requirements,

call Black Box Technical Support; we might be able to provide adapters or create

a special product for you.)

CHAPTER 3: Installation and Configuration

3.2 The Setup Procedure

Installing and configuring a Local/Remote Electronic Switch is relatively quick and

easy, and will vary only slightly depending on which model you’ve chosen. Follow

these steps:

(Steps 1 through 4 are for remotely switched applications only:)

1. Make sure that the Switch is unplugged (is not receiving AC power). Open

the Switch by unscrewing the two screws on the bottom of the unit (save these

screws) and removing the top of the unit’s housing. (You will probably have

to peel back the CE sticker on the bottom of the unit to get at one of the

screws.)

2. Find jumper W1 (for SW980 or SW981 units) or jumpers W2 and W3 (for

SW982 units) on the Switch’s circuit board. Refer to Figure 3-1 on the next

page if your unit is an SW980 model, to Figure 3-2 on page 11 if your unit is

an SW981 model, or to Figure 3-3 on page 12 if your unit is an SW982 model.

Set the jumper(s) as appropriate for your application:

• Set W1, or W2 and W3, to the A-B position for applications that use

dry-contact closure to perform remote switching.

• Set W1, or W2 and W3, to the B-C position for applications that use

active driver(s) to perform remote switching.

(text continued on page 13)

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