American Dynamics 1981 Installation Instructions Manual

Brand: American Dynamics

Model: 1981

Type: Installation Instructions Manual

This manual is also suitable for

AD1981

American Dynamics 1981 Port Expander is a reliable product designed to increase the number of RS-232 ports for 1650, 1995, 1996, and 2150 switching systems. By utilizing one I/O port to accept input, it expands that input into four outputs for use with external devices like keyboards. With its easy installation and configuration, this port expander offers a convenient solution for expanding connectivity and enhancing system functionality.

Model 1981

PORT EXPANDER

This manual describes the installation procedures for the American Dynamics model 1981 Port Expander. The 1981 Port

Expander is used to increase the number of RS-232 I/O ports on the 1650, 1995, 1996, and 2150 Systems. The Port Expander

uses one I/O port to accept an input and then expands that one input to four outputs. These outputs are for use with external

devices, such as keyboards.

Installation Instructions

Information furnished by SENSORMATIC is believed to be accurate and reliable. However, no responsibility is assumed by

SENSORMATIC for its use; nor for any infringements of other rights of third parties which may result from its use. No

license is granted by implications or otherwise under any patent or patent rights of SENSORMATIC.

The installation of this product should be made by qualified

service personnel and should conform to all local codes.

QA301D

To reduce the risk of fire or shock hazard, do

not expose this product to rain or moisture.

AMERICAN

DYNAMICS

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMOVE COVERS (OR BACK) .

NO USER-SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL

RISK OF ELECTRIC SHOCK

DO NOT OPEN

 CAUTION

The lightning flash with arrowhead

symbol, within an equilateral

triangle, is intended to alert the

user to the presence of uninsulated

"dangerous voltage" within the

product's enclosure that may be of

sufficient magnitude to constitute a

risk of electric shock to persons.

The exclamation point within an

equilateral triangle is intended to

alert the user to the presence of

important operating and maintenance

(servicing) instructions in the

literature accompanying the product.

Unpack carefully. This is an electronic product and should

be handled as such. Compare the items received with the

packing list with your order.

Be sure to save:

1. The shipping cartons and insert pieces. They are the )

safest material in which to make future shipments of

the product.

2. The IMPORTANT SAFEGUARDS sheet.

3. These Installation and Operating Instructions.

User maintenance of this unit is limited to external cleaning

and inspection. For specific recommendations refer to the

IMPORTANT SAFEGUARDS sheet packaged with this product.

If you require information during installation of this

product or if service seems necessary, contact the

Sensormatic Repair and Service Department at (800)

442-2225. You must obtain a Return Authorization Number

and shipping instructions before returning any product for

service.

Do not attempt to service this product yourself. Opening or

removing covers may expose you to dangerous voltages or

other hazards. Refer all servicing to qualified personnel.

This equipment has been tested and

found to comply with Part 15 of the

FCC Rules.

Operation is subject to the

following two conditions: 1. This

device may not cause harmful

interference, and 2. This device

must accept any interference

received, including interference

that may cause undesired operation.

Table of Contents

Description.............................................................1

Installation..............................................................1

Power Source .........................................................1

Setup.......................................................................2

Connections............................................................3

1981 to 1650 .....................................................3

1981 to 1995......................................................4

1981 to 1996......................................................5

1981 to 2150......................................................6

1981 to 2010DBVL...........................................7

Typical System Connections ....................Appendix

DESCRIPTION

The 1981 Port Expander is used to increase the number of

RS-232 ports on the 1650, 1995, 1996, and 2150 Matrix

Switching System CPUs. The Port Expander uses one CPU

RS-232 port and expands that to four ports. These ports are

for use with external RS-232 devices, such as keyboards.

INSTALLATION

This installation should be made by qualified service

personnel and should conform to all local codes. Safeguards

must be taken to avoid unintentional operation by employees

and maintenance personnel working about the premises, by

falling objects, by customers, by building vibration, and by

similar causes.

Mounting

The 1981 Port Expander is supplied as a desktop unit, but can

be rack-mounted if desired. The height dimension of a 1981

is 1 3/4" rack space and the width is one-half of the usual 19"

rack space. Therefore, two 1981 units may be mounted side-

by-side in a 19" by 1 3/4" rack space. When rack mounting,

use a 2117 Series Accessory Kit.

Power Source

DO NOT CONNECT TO THE POWER SOURCE

UNTIL YOU ARE READY TO "POWER UP".

The 1981 Port Expander does not contain an On/Off switch.

There is a red LED power indicator, located on the front

panel, that illuminates when power is applied. Power is

supplied via the plug and the appended 3-wire power cord.

Insert the plug (located on the rear panel) in the required

power source. Power consumption for the 1981 is

approximately 10 watts.

1981 Port Expander models without a suffix are configured

for 120V, 50/60 Hz primary power source. Models with the

"X" suffix are configured for 230V, 50/60 Hz primary source.

DESCRIPTION and INSTALLATION

1981

Port Expander

to Switcher

Keyboard

CPU

KBD

Figure 1 - 1981 Port Expander - Rear Panel

IF YOU ENCOUNTER ANY PROBLEMS

OPERATING THIS UNIT, OR NEED TECHNICAL

ASSISTANCE, CALL OUR SERVICE CENTER:

within the United States: 1-800-442-2225

outside the United States: (914) 624-7640

SETUP

Port Baud Rates

As shipped all 1981 Port Expander units are configured as

follows:

Input Baud Rate - 1200 (Keyboard ports)

Output Baud Rate - 4800 (System port)

See Figure 2 below to locate the baud rate jumper pins on the

main circuit board of the 1981. To change the baud rate

setting of the 1981 Port Expander, move the jumper to the

appropriate baud rate position for the port to be changed.

The baud rate of the keyboard(s) and the 1981 Port Expander

unit must be matched to each other.

Set the Switching system's baud rate to the 1981's baud rate

or "Auto Baud", if applicable.

SETUP

CPU

Front of 1981

BAUD RATE Jumper Switches

KBD

Figure 2 - Baud Rate Pin Location

- CAUTION -

The following procedures expose hazardous-voltage

wiring and components and allow access to dangerous

electric shock potentials. They should be performed

only by qualified service personnel.

CONNECTIONS

Connections between the 1981 Port Expander and the 1650,

1995, 1996, and 2150 System CPUs, and between the 1981

and the keyboard(s) are discussed in the following pages and

illustrated in the Appendix. The connections between 2050

Switching Bay 2010DBVL Video Loss Detection modules

and the 1981 Port Expander are also discussed in the

following pages and illustrated in the Appendix.

Note: For proper operation of the system, set the baud rates

for the ports, as shown on page 2.

1981 to 1650 Connections

The 1650 System has four RS-232 ports. With the use of

1981 Port Expanders, the number of inputs (keyboards) that

can communicate with the 1650 can expand to a maximum of

sixteen. This type of connection is illustrated in Appendix A.

The 1981 has five RS-232 ports. One RS-232 port on the

Port Expander (CPU) is used to connect to one of the 1650

RS-232 ports. The other four RS-232 ports on the Port

Expander (KBD a, KBD b, KBD c, and KBD d) are used to

connect to external keyboards for use with the 1650.

The five 9-pin D-type connectors on the rear of the 1981

provide the input and output ports, as follows:

to CPU OUTPUT PORT to the 1650 System

KBD d Keyboard INPUT PORT D

KBD c Keyboard INPUT PORT C

KBD b Keyboard INPUT PORT B

KBD a Keyboard INPUT PORT A

The pin definitions for each of the 9-pin port connectors is as

follows:

1981 Ports Pin Definitions

Definition

1 Shield

2 No Connection

3 Transmit Data

4 Receive Data

5 Ground

6 No Connection

7 DSR

8 DTR

9 No Connection

1981 CPU Port Connection

A terminal box (HP0047), connected to the 1650 CPU by a

modular cable (JJ0007), is used to connect the 1981 Port

Expander to the 1650. The pin definitions for the terminal

box and the 1981 are shown below.

1981 1650 RS-232 Ports 1-4

Output Port (CPU) HP0047 Terminal Box

Definition Pin Pin Definition

Shield 1

Receive Data 4 5 Transmit Data

Transmit Data 3 4 Receive Data

Ground 5 2 Ground

1981 KBD Ports Connections

1676 Series Keyboards

A terminal box (HP0047) is used to connect a 1676 Series

Keyboard to the 1981 Port Expander. The pin definition for

the terminal box and the 1981 are shown below.

1676 Keyboard 1981

Terminal Box (HP0047) Input Ports (KBD a-d)

Definition Pin Pin Definition

1 Shield

Transmit Data 5 4 Receive Data

Receive Data 4 3 Transmit Data

Ground 2 5 Ground

1678 Series Keyboards

A terminal box (1678TB) is used to connect a 1678 Series

Keyboard to the 1981 Port Expander. The pin definitions for

the terminal box and the 1981 are shown below.

1678 Keyboard 1981

Terminal Box (1678TB) Input Ports (KBD a-d)

Definition Pin Pin Definition

1 Shield

Transmit Data XMIT 4 Receive Data

Receive Data RCD 3 Transmit Data

Ground GND 5 Ground

CONNECTIONS

1981 to 1995 Connections

The 1995 System has ten RS-232 ports. With the use of 1981

Port Expanders, you may expand the number of ports on the

1995 CPU to a maximum of forty. This type of connection is

illustrated in Appendices B and C.

The 1981 has five RS-232 ports. One RS-232 port on the

Port Expander (CPU) is used to connect to a port on the 1995.

The other four RS-232 ports on the Port Expander (KBD a,

KBD b, KBD c, and KBD d) are used to connect to external

keyboards for use with the 1995.

The five 9-pin D-type connectors on the rear of the 1981

provide the input and output ports, as follows:

to CPU OUTPUT PORT to the 1995 CPU

KBD d Keyboard INPUT PORT D

KBD c Keyboard INPUT PORT C

KBD b Keyboard INPUT PORT B

KBD a Keyboard INPUT PORT A

Each 1981 rear panel port connector's pin definition is as

follows:

1981 Ports Pin Definitions

Pin Definition

1 Shield

2 No Connection

3 Transmit Data

4 Receive Data

5 Ground

6 No Connection

7 DSR

8 DTR

9 No Connection

1981 CPU Port Connection

Either a 25-pin or 9-pin D-type connector is used on the 1995

CPU to connect to the 1981 Port Expander. The pin

definitions for each of these connectors are shown below.

1981 1995 Ports

Output Port (CPU) 1 to 2 3 to10

Definition Pin 25-Pin 9-Pin Definition

1 1 Shield

Transmit Data 3 4 3 Receive Data

Receive Data 4 3 2 Transmit Data

Ground 5 5 7 Ground

1981 KBD Ports Connections

1676 Series Keyboards

A terminal box (HP0047) is used to connect a 1676 Series

Keyboard to the 1981 Port Expander. The pin definition for

the terminal box and the 1981 are shown below.

1676 Keyboard 1981

Terminal Box (HP0047) Input Ports (KBD a-d)

Definition Pin Pin Definition

1 Shield

Transmit Data 5 4 Receive Data

Receive Data 4 3 Transmit Data

Ground 2 5 Ground

1678 Series Keyboards

A terminal box (1678TB) is used to connect a 1678 Series

Keyboard to the 1981 Port Expander. The pin definitions for

the terminal box and the 1981 are shown below.

1678 Keyboard 1981

Terminal Box (1678TB) Input Ports (KBD a-d)

Definition Pin Pin Definition

1 Shield

Transmit Data XMIT 4 Receive Data

Receive Data RCD 3 Transmit Data

Ground GND 5 Ground

2078 Series Keyboards

A terminal box (HP0082) is used to connect a 2078 Series

Keyboard to the 1981 Port Expander. The pin definition for

the terminal box and the 1981 are shown below.

2078 Keyboard 1981

Terminal Box (HP0082) Input Ports (KBD a-d)

Definition Pin Pin Definition

1 Shield

Transmit Data 5 4 Receive Data

Receive Data 4 3 Transmit Data

Ground 7 5 Ground

CONNECTIONS

1981 to 1996 Connections

The 1996 has ten RS-232 ports. With the use of 1981 Port

Expanders, the number of input keyboards that can

communicate with the 1996 can expand to a maximum of

forty. This type of connection is illustrated in Appendix D.

The 1981 has five RS-232 ports. One RS-232 port on the

Port Expander (CPU) is used to connect to the 1996. The

other four RS-232 ports (KBD a, KBD b, KBD c, and KBD

d) on the Port Expander are used to connect to external

keyboards for use with the 1996.

The five 9-pin D-type connectors on the rear of the 1981

provide the input and output ports, as follows:

to CPU OUTPUT PORT to the 1996 CPU

KBD d Keyboard INPUT PORT D

KBD c Keyboard INPUT PORT C

KBD b Keyboard INPUT PORT B

KBD a Keyboard INPUT PORT A

Each 1981 rear panel port connector's pin definition is as

follows:

1981 Ports Pin Definitions

Pin Definition

1 Shield

2 No Connection

3 Transmit Data

4 Receive Data

5 Ground

6 No Connection

7 DSR

8 DTR

9 No Connection

1981 CPU Port Connection

A terminal box (HP0047), connected to the 1996 CPU by a

modular cable (JJ0007), is used to connect the 1981 Port

Expander to the 1996. The pin definitions for the terminal

box and the 1981 are shown below.

1981 1996 RS-232 Ports 1-10

Output Port (CPU) Terminal Box (HP0047)

Definition Pin Pin Definition

Shield 1

Receive Data 4 5 Transmit Data

Transmit Data 3 4 Receive Data

Ground 5 2 Ground

1981 KBD Ports Connections

1676 Series Keyboards

A terminal box (HP0047) is used to connect a 1676 Series

Keyboard to the 1981 Port Expander. The pin definition for

the terminal box and the 1981 are shown below.

1676 Keyboard 1981

Terminal Box (HP0047) Input Ports (KBD a-d)

Definition Pin Pin Definition

1 Shield

Transmit Data 5 4 Receive Data

Receive Data 4 3 Transmit Data

Ground 2 5 Ground

1678 Series Keyboards

A terminal box (1678TB) is used to connect a 1678 Series

Keyboard to the 1981 Port Expander. The pin definitions for

the terminal box and the 1981 are shown below.

1678 Keyboard 1981

Terminal Box (1678TB) Input Ports (KBD a-d)

Definition Pin Pin Definition

1 Shield

Transmit Data XMIT 4 Receive Data

Receive Data RCD 3 Transmit Data

Ground GND 5 Ground

2078 Series Keyboards

A terminal box (HP0082) is used to connect a 2078 Series

Keyboard to the 1981 Port Expander. The pin definition for

the terminal box and the 1981 are shown below.

2078 Keyboard 1981

Terminal Box (HP0082) Input Ports (KBD a-d)

Definition Pin Pin Definition

1 Shield

Transmit Data 5 4 Receive Data

Receive Data 4 3 Transmit Data

Ground 7 5 Ground

CONNECTIONS

1981 to 2150 Connections

The 2150 has three RS-232 ports. When the 1981 Port

Expander is used with the 2150, the number of inputs

(keyboards) that can communicate with the 2150 can expand

to a maximum of twelve. This type of connection is

illustrated in Appendix E.

The 1981 has five RS-232 ports. One RS-232 port on the

Port Expander (CPU) is used to connect to the 2150. The

other four RS-232 ports (KBD a, KBD b, KBD c, and KBD

d) on the Port Expander are used to connect to external

keyboards for use with the 2150.

The five 9-pin D-type connectors on the rear of the 1981

provide the input and output ports, as follows:

CPU OUTPUT PORT to the 2150 System

KBD d Keyboard INPUT PORT D

KBD c Keyboard INPUT PORT C

KBD b Keyboard INPUT PORT B

KBD a Keyboard INPUT PORT A

Each 1981 rear panel port connector's pin definition is as

follows:

1981 Ports Pin Definitions

Pin Definition

1 Shield

2 No Connection

3 Transmit Data

4 Receive Data

5 Ground

6 No Connection

7 DSR

8 DTR

9 No Connection

1981 CPU Port Connection

A terminal box (HP0047), connected to the 2150 CPU by a

modular cable (JJ0007), is used to connect the 1981 Port

Expander to the 2150. The pin definitions for the terminal

box and the 1981 are shown below.

1981 2150 RS-232 Ports 1-3

Output Port (CPU) Terminal Box (HP0047)

Definition Pin Pin Definition

Shield 1

Receive Data 4 5 Transmit Data

Transmit Data 3 4 Receive Data

Ground 5 2 Ground

1981 KBD Ports Connections

1676 Series Keyboards

A terminal box (HP0047) is used to connect a 1676 Series

Keyboard to the 1981 Port Expander. The pin definition for

the terminal box and the 1981 are shown below.

1676 Keyboard 1981

Terminal Box (HP0047) Input Ports (KBD a-d)

Definition Pin Pin Definition

1 Shield

Transmit Data 5 4 Receive Data

Receive Data 4 3 Transmit Data

Ground 2 5 Ground

1678 Series Keyboards

A terminal box (1678TB) is used to connect a 1678 Series

Keyboard to the 1981 Port Expander. The pin definitions for

the terminal box and the 1981 are shown below.

1678 Keyboard 1981

Terminal Box (1678TB) Input Ports (KBD a-d)

Definition Pin Pin Definition

1 Shield

Transmit Data XMIT 4 Receive Data

Receive Data RCD 3 Transmit Data

Ground GND 5 Ground

2078 Series Keyboards

A terminal box (HP0082) is used to connect a 2078 Series

Keyboard to the 1981 Port Expander. The pin definition for

the terminal box and the 1981 are shown below.

2078 Keyboard 1981

Terminal Box (HP0082) Input Ports (KBD a-d)

Definition Pin Pin Definition

1 Shield

Transmit Data 5 4 Receive Data

Receive Data 4 3 Transmit Data

Ground 7 5 Ground

CONNECTIONS

1981 Connections for 2010DBVL Video Loss Detector

Data Buffer Modules

The 2010DBVL Video Loss Detector modules of the 2050

Switching Bays must communicate with only a single port on

the 1996 CPU. With the use of the 1981 Port Expander, the

number of 2010DBVL modules that can communicate with

one 1996 port can expand to a maximum of four. This type

of connection is illustrated in Appendix F and Appendix G.

The 1981 has five RS-232 ports. One RS-232 port on the

Port Expander (CPU) is used to connect to the 1996 CPU.

The other four RS-232 ports (KBD a, KBD b, KBD c, and

KBD d) on the Port Expander are used to connect to

2010DBVL modules for use with the 1996.

Each 2010DBVL module must be connected to a specific port

on the 1981. The 2010DBVL module for cameras 1 - 256

must be connected to port A (KBD a) of the 1981, the module

for cameras 257 - 512 to port B (KBD b), the module for

cameras 513 - 768 to port C (KBD c), and the module for

cameras 769 - 1024 to port D (KBD d).

The five 9-pin D-type connectors on the rear of the 1981

provide the input and output ports, as follows:

to CPU OUTPUT PORT to the 1996 CPU

KBD d 2010DBVL-4X, Cameras 769 - 1024

KBD c 2010DBVL-3X, Cameras 513 - 768

KBD b 2010DBVL-2X, Cameras 257 - 512

KBD a 2010DBVL-1X/-0X, Cameras 1 - 256

Each 1981 rear panel port connector's pin definition is as

follows:

1981 Ports Pin Definitions

Pin Definition

1 Shield

2 No Connection

3 Transmit Data

4 Receive Data

5 Ground

6 No Connection

7 DSR

8 DTR

9 No Connection

1981 CPU Port Connection

A terminal box (HP0047), connected to the 1996 CPU by a

modular cable (JJ0007), is used to connect the 1981 Port

Expander to the 1996. The pin definitions for the terminal

box and the 1981 are shown below.

1981 1996 RS-232 Ports 1-10

Output Port (CPU) Terminal Box (HP0047)

Definition Pin Pin Definition

Shield 1

Receive Data 4 5 Transmit Data

Transmit Data 3 4 Receive Data

Ground 5 2 Ground

1981 KBD Ports Connections

A terminal box (HP0047), connected to the 2010DBVL

module by a modular cable (JJ0007), is used to connect a

2010DBVL Module to the 1981 Port Expander. The pin

definition for the terminal box and the 1981 are shown below.

2010DBVL Module 1981

Terminal Box (HP0047) Input Ports (KBD a-d)

Definition Pin Pin Definition

1 Shield

Transmit Data 5 4 Receive Data

Receive Data 4 3 Transmit Data

Ground 2 5 Ground

Appendix

TYPICAL SYSTEM CONNECTIONS

1981 to 1650

APPENDIX A

1650 NOTE : THESE CONNECTIONS ARE

TYPICAL OF ONE 1981 PORT EXPANDER .

EACH RS232 PORT IS PROGRAMMABLE.

1676

JJ0007

1650

MONITOR

RS-232

OUT

MONITOR

RED

GREEN

XMIT

RCD

GND

CTS

DTR

DATA

TP8059

7.5 VOLTS AC

1.5 AMP

1678TB

1678CM

8 82161A 21

THREE CONDUCTOR SHIELDED

BELDON 8770 OR EQUIVALENT

1981

HP0047

RED

GREEN

JJ0007

ORANGE

THREE CONDUCTOR SHIELDED

BELDON 8770 OR EQUIVALENT

TP8059

7.5 VOLTS AC

1.5 AMP

HP0047

1678BM

CPU

KBD

1981 NOTE : KBD a-d ARE INPUT PORTS WHICH MAY BE USED

WITH ANY AMERICANDYNAMICS RS232 KEYBOARD.

12345

6789

12345

6789

12345

6789

TYPICAL SYSTEM CONNECTION

1981 TO 1995, 9 - PIN CONNECTOR

APPENDIX B

1678CM

1676

THREE CONDUCTOR SHIELDED

BELDON 8770 OR EQUIVALENT

XMIT

RCD

GND

CTS

DTR

DATA

TP8059

7.5 VOLTS AC

1.5 AMP

1678TB

THREE CONDUCTOR SHIELDED

BELDON 8770 OR EQUIVALENT

1981

RED

GREEN

HP0047

JJ0007

ORANGE

1995

CPU TRANSMIT

CPU RECEIVE

GROUND

TP8059

7.5 VOLTS AC

1.5 AMP

CPU

KBD

1995 NOTE : THESE CONNECTIONS ARE TYPICAL OF ONE 1981 PORT

EXPANDER . EACH RS232 PORT IS PROGRAMMABLE.

1981 NOTE : KBD a-d ARE INPUT PORTS WHICH MAY BE USED

WITH ANY AMERICANDYNAMICS RS232 KEYBOARD.

12345

6789

12345

6789

12345

6789

12345

6789

RST

LAN

IN OUT

LAN

OUT

PORT

ORT

PORT

KBD

2078

12345

6789

KBD

HP0082

JJ0007

J1J2

TYPICAL SYSTEM CONNECTIONS

1981 TO 1995, 25 - PIN CONNECTOR

APPENDIX C

1361234 5 78 9 101112

22 23 24 2518 19 20 2114 15 16 17

CPU'S

TRANSMIT

CPU'S

RECEIVE

GROUND

THREE CONDUCTOR SHIELDED

BELDON 8770 OR EQUIVALENT

XMIT

RCD

GND

CTS

DTR

DATA

TP8059

7.5 VOLTS AC

1.5 AMP

1678TB

1678CM

THREE CONDUCTOR SHIELDED

BELDON 8770 OR EQUIVALENT

1981

RED

GREEN

HP0047

JJ0007

1676

ORANGE

1995

TP8059

7.5 VOLTS AC

1.5 AMP

1981 NOTE : KBD a-d ARE INPUT PORTS WHICH MAY BE USED

WITH ANY AMERICANDYNAMICS RS232 KEYBOARD.

1995 NOTE : THESE CONNECTIONS ARE TYPICAL OF ONE 1981 PORT

EXPANDER . EACH RS232 PORT IS PROGRAMMABLE.

CPU

KBD

12345

6789

12345

6789

12345

6789

RST

LAN

IN OUT

ORT

PORT

LAN

IN OUT

KBD

2078

12345

6789

HP0082

JJ0007

KBD

J1J2

1676

1996

APPENDIX D

THREE CONDUCTOR SHIELDED

BELDON 8770 OR EQUIVALENT

RED

GREEN

XMIT

RCD

GND

CTS

DTR

DATA

TP8059

7.5 VOLTS AC

1.5 AMP

1678TB

1678CM

THREE CONDUCTOR SHIELDED

BELDON 8770 OR EQUIVALENT

1981

HP0047

RED

GREEN

JJ0007

ORANGE

TP8059

7.5 VOLTS AC

1.5 AMP

HP0047

JJ0007

CPU

KBD

1981 NOTE : KBD a-d ARE INPUT PORTS WHICH MAY BE USED

WITH ANY AMERICANDYNAMICS RS232 KEYBOARD.

1996 NOTE : THESE CONNECTIONS ARE TYPICAL OF ONE 1981 PORT

EXPANDER . EACH RS232 PORT IS PROGRAMMABLE.

12345

6789

12345

6789

12345

6789

12 345678 910

PGM MON

DATA LINE

PORTS

120V

50/60Hz

KBD

2078

12345

6789

KBD

HP0082

JJ0007

J1J2

TYPICAL SYSTEM CONNECTIONS

1981 TO 1996

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American Dynamics 1981 Installation Instructions Manual

Brand: American Dynamics

Model: 1981

Type: Installation Instructions Manual

This manual is also suitable for

AD1981

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American Dynamics 1981 Installation Instructions Manual

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American Dynamics 1981 Installation Instructions Manual

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