American Dynamics AD1985A Installation Instructions Manual

Model

1985A

Megapower

CPU

Standby Switch

Installation Instructions

The 1985A

Standby

Switch is for use with either

two

1995 or two 1996 Switching Systems. The 1985A reads the

high

speed data line

of

each

CPU

and

determines

if

both

are functioning normally. The 1985A will detect most Switching System failures.

In

the event

of

a

Switching System failure the 1985A will automatically select the

second

CPU

(1995

or

1996)

as

the

system

controller.

The

198SA

contains

an

audio

alert

which will sound in the event of a

CPU

failure. The front panel contains

status

lights for

CPU

status, Keyboard

input

status

and

Supervisor/Controller Status. There are

also

two

switches, one

for

over

-

riding the automatic selection of

1995

or

1996

controllers and the other for turning the audio

alert

on

or

off.

The software/fmware furnished with this equipment is confidential to and is copyrighted by AMERICAN

DYNAMICS.

It is

not

to be copied or disclosed in any manner without the express written consent of AMERICAN DYNAMICS. The

software/fmware is furnished to the purchaser under a license for use on

a

single system, and remains the property

of

AMERICAN DYNAMICS.

Information furnished by AMERICAN DYNAMICS is believed

to

be accurate and reliable. However, no responsibility is

assumed

by

AMERICAN DYNAMICS 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

AMERICAN DYNAMICS.

-

-=

-

I

-=AMERICAN

-

--ADYNAMICS

-I-

-

The

installation

of

this

product

should

be

made

by

qualified

service

personnel

and

should

conform

to

all

local

codes.

/

\[

DONOTOPEN

J

/

1

\

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

I

WARNING

To

reduce the risk

of

fire

or

shock hazard,

do

I

not expose this Droduct to rain

or

moisture.

Warning: This product generates, uses, and can

radiate radio frequency energy and if not

installed and used in accordance with the

instructions manual, may cause interference to

radio communications.

It

has been tested and

found to comply with the limits for

a

Class A

computing device pursuant to Part

15

of

FCC

Rules, which are designed to provide reasonable

protection against such interference when

operated in a commercial environment.

Operation of this product 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 required to correct

the interference.

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

A

literature accompanying the product.

UNPACKING AND INSPECTION

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.

MAINTENANCE

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.

INSTALLATION AND SERVICE

If you require information during installation of this

product or if service seems necessary, contact the

American Dynamics 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.

QA301

C

1985A

MEGAPOWER

CPU

STANDBY

SWITCH

DESCRIPTION

Mounting

The 1985A Megapower Standby Switch allows two 1995

or

1996 CPUs to operate

in

tandem, where one CPU is the

primary controlling CPU of the system and second is the

backup CPU in stand

-

by mode. Operationally, all keyboard

control input commands and the LAN

output

commands are

routed through the

1985A and connected to the two 1995 or

1996 CPUs and the Video Matrix Switch.

The

1985A is designed

to

detect system failures of the primary

CPU and automatically select the backup

CPU in the event of

the primary’s failure.

If

a failure

in

either CPU is detected. the

1985A

has

four

different

alarm

actions.

1.

Sounds

an audible alarm

2.

LEDs

to indicate failure

3. Relay closure to indicate a failure

4.

Relay closure associated with the failure.

In case of an internal failure the

1985A has a built

-

in

“faiUsafe” mode. The 1985A will place the primary CPU in

control of the Switching System and flash the

LED that

indicates

an

internal failure.

INSTALLATION

DO

NOT

PHYSICALLY CONNECT

EQUIPMENT

TO

THE

POWER

SOURCE

UNTIL

READY To

“POWER

up”.

I

.

IF

YOU ENCOUNTER

ANY

PROBLEMS

OPERATING THIS

UNIT,

OR

NEED

TECHNICAL

ASSISTANCE, CALL OUR SERVICE CENTER AT

within the United States:

1

-

800

-

442

-

2225

outside the United States:

(914)

624

-

7640

Power

Sources

System models with a “D’ or

“R’

suffix (1985

A/D

or

1985

A/R)

are configured for use with a 120

V,

60

Hz

primary

power source. Models with a

“DX’

or

“RX”

suffix (1985AlDX

or

1985

A/RX)

are configured for a 230V,

50

Hz

primary

power

source.

Power is supplied

to

the 1985A by means of the plug and the

appended 3

-

wire cord. Insert the plug

in

the required power

source.

The 1985A Megapower Standby Switch

does

not

have

an

WOff

Power switch

The 1985

AIR

is supplied

for

standard 19

-

inch EIA rack

mounting with a rack height of

5-1/4-inches. Desktop

units

are

available and

carry

a model

#

1985AD.

The 1985A Standby Switch should be located near

the

MegaPower (1995

or

1996) controllers. The 1985A and the

two CPUs (1995

or

1996) should be located in the same rack to

reduce long wiring runs. Avoid heat sources or poorly

ventilated racks.

For

proper ventilation and ease of service,

allow at least

3

ft.

(1 m) from the rear of the racks to

any

hall,

and 1

EIA

rack height

(

1 3/4”/4.5cm) between units.

CONNECTIONS

All system connections are made on

the

rear panel

of

the

1985A. Be certain that all connections are properly completed

BEFORE applying power.

The installation should be made in a planned and orderly

manner. The operation of each piece

of

equipment should

be

confirmed as early as possible during the installation

procedure. It is much easier to remove a few temporary

terminations or connections after a

confirmation check than

it

is to disconnect and re

-

wire a large number of “permanent”

connections.

Communication

Port

Connections

The rear panel of the 1985A Standby Switch contains

30

connectors for RS

-

232 communication links. The connectors

used are 8

-

pin telephone connectors.

The

10

connectors on the top row, labeled

SYS,

are used

to

connect the 1985A to keyboards, an external computer(s),

an

alarm interface, or other RS

-

232 devices that would have

normally been connected directly into a 1995 or 1996 CPU.

The 10 connectors in the middle row, labeled

CPU1, are used

to

connect the first CPU (1995 or 1996) to Port

2

of

the 1985A,

etc. This CPU will be

the

controller normally used

by

the

system.

The 10 connecotrs on the bottom row, labeled

CPU2, on

the

rear panel of the 1985A are used to connect the standby

controller

to

the 1985A. Port 1 of the CPU (1995 or 1996) is

connected to Port 1

of

the 1985A. Port 2 of

the

CPU (1995 or

1996) is connected

to

Port

2,

etc.

1

1985A MEGAPOWER

CPU

STANDBY

SWITCH

RS

-

232 Connector

The RS

-

232 connector used

on

all ports is an 8

-

pin telephone

type connector

(RJ45). The terminal box supplied with the

telephone cables

has

the same pinout signals as the telephone

connectors, Please see Tables 1 for the pinout

of

these

connectors.

RS

-

232 Connector Pinouts

Table

1

-

Telephone and Terminal Box Definition

FUNCTION

1 No Connection

2

GND

3 No Connection

4

RCD

5

XMIT

6

No Connection

7

GND

8

No Connection

Supplied with the

1985A

are

the cables and terminal boxes

necessary to connect the keyboards and Megapowers

to

the

1985A Standby Switch. See Figure 1 for the pinout

of

the

terminal

box.

Connecting the Keyboards

Connect a 3

-

wire RS

-

232 type cable to the terminal box

pins

4,5,

and

7

(or

2)

as

located in Figure 1. Connect

the

transmit (XMIT)

of

the keyboard to pin

4,

and

the receive (REC)

of

the

keyboard

to pin

5.

The

third wire, which is ground, should

be

connected

to pin

7

or

2

,

(

See

Appendices A and

B).

DO NOT CONNECT THE CABLE SHIELD AT THE

TERMINAL

BOX

RED

-

GREEN

-

BROWN

Connecting the Megapower

Ports

Connecting the 1995 Series Megapower

Connect a 3

-

wire RS

-

232 type cable

to

the terminal box pins

4.

5.

and

7

(or 2) as located in Figure

1.

Connect the transmit (XMIT)

of

the

CPU

(1995) to pin

4

and the receive (REC) of the

CPU

(1995) to pin

5.

The third wire which is ground should be

connected to pin

7

or

2.

(See Appendix D).

DO

NOT CONNECT THE CABLE SHIELD AT THE

TERMINAL BOX

The pinouts for the 1995 Megapower 9 pin and

25

pin Sub

-

D

connectors

are

given below:

25

-

Sub

-

D

for

CPU Port

1

or

2

(DTE)

Table

2

-

25

Pin Sub

-

D Pinout

FUNCTION

1

Shield

2 Transmit

3

Receive

7

Ground

9

-

Sub

-

D

for

CPU Port

3

to

10

(DTE)

Table

3

-

9 Pin Sub

-

D Pinout

PIN FUNCTION

I

Shield

3

Transmit

4

Receive

5

Ground

Connecting the

1996

Series Megapower

The connection between the 1985A Standby Switch and the 1996

do

not use any terminal boxes. Just connect

Port

1

of

the

1996 to

the

CPU1,

Port

1

of

the 1985A. Connect the 1996

Port

2

to

the

CPUl,

Port

2

of

the 1985A, etc. Connections for the second 1996

are made

in

a

similar

manner using

CPU2

connections on the

rear

panel of the 1985A. (See Appendix E).

Figure 1

-

Terminal

Box

Pin Location

2

1985A MEGAPOWER

CPU

STANDBY

SWITCH

High

Speed

Control Code Line

The two

sets

of

three BNC connectors, located on the rear

panel of the

1985A, are used to connect the high speed control

code from the

CPUs to the Video Switching System. (See

Figure 2).

Each 1995 and 1996 Series CPU contains two control code

outputs.

In

the 1995 and the 19% the code line marked

LANI,

(or Dataline

1)

contains the switching information for monitors

1

to

64.

The code line marked LAN2

(or

Dataline 2) contains

switching information for monitors

65

to

128.

If

your

system

contains less

than

65 monitors, only connections for Dataline 1

are necessary.

Using a video type cable (RG

-

59U or equivalent), connect the

1985A codel CPUl BNC to the LANl

of

a 1995 CPU

or

the

Dataline

1

of

a 1996 CPU which has been determined to be

CPU 1.

Using a video type cable (RG

-

59U or equivalent), connect the

1985A code 2 CPUl BNC to the LAN2 of a 1995 CPU or the

Dataline 2 of

a

1996 CPU which has been determined

to

be

CPU

I.

Using

a

video

type

cable (RG-59U

or

equivalent), connect the

1985A code 1 CPU2 BNC to the LANl of

a

1995 CPU or the

Dataline 1

of

a 1996 CPU which has been determined to be

CPU2.

Using a video type cable (RG-59U or equivalent), connect the

1985A code

2

CPU2 BNC to the

LAN2

of a 1995 CPU

or

the

Dataline 2 of a 1996 CPU which has been determined to be

CPU2.

The uppermost BNC connectors (CODE 1 and 2 under

SYS)

are the Dataline outputs for the Video Switching System. The

System CODE 1 BNC

is

connected to the Video Switching

System controlling monitors

1

to

64.

The System CODE 2

BNC goes to the Video System controlling monitors 65 to 128.

(See Appendices

D

and

E).

Note: The last unit on

the

High Speed Control Line in the

video system must have the line terminated at

75

ohm.

Alarm

Connector

The 12

-

pin Molex connector, located on the rear panel

of

the

1985A, contains connections to three relays. One

of

the relays

activates when CPUl fails. Another is activated when

CPU2

fails.

The third relay activates when either CPUl or CPU2

fails. The normally open and normally closed contacts from the

relays are supplied on this connector. Figure

3

shows the pin

locations.

Alarm Connector

Pinouts

-

1

2

3

4

5

6

7

8

9

10

11

12

FUNCTION

CPUl relay, Normally open

CPUl relay. Common

CPU 1 relay, Normally closed

CPU2 relay, Normally open

CPU2 relay, Common

CPU2 relay, Normally closed

No Connection

Common relay, Normally open

Common relay, Common

Common relay, Normally closed

Figure

3

-

Molex Pin Location

Figure 2

-

Rear Panel

3

1985A MEGAPOWER CPU STANDBY SWITCH

SETUP

OPERATION

All

controls for the 1985A Standby Switch are located in the

center

of

the unit’s front panel as shown in Figure

4

below.

CPU SELECT SWITCH

This 3-position switch selects whether the CPU that will run

the video system is to be selected automatically (middle

position) or manually (by selecting CPUl or

CPU2). In the

AUTO position, the Standby Switch decides which CPU will

control the system. Selecting CPUl or CPU2 will

override the

auto select; the CPU selected will operate the system. If the

switch

is

left in either CPUl or CPU2 (not AUTO), that CPU

will stay connected to the system even

if

a failure occurs.

However,

if

a failure occurs, an audible alert will sound.

ALERT

Switch

This 2

-

position switch

turns

the audible alert

ON

or

OFF.

This

alert sounds when either CPUl or CPU2 fails.

Front

Panel Indicators

The 27 indicator LEDs

on

the front panel of the 1985A are

grouped under PORT STATUS and CPU STATUS. These

LEDs give an indication of system status and operation.

CPU STATUS

This

group of seven LEDs indicate the status of both (the 1995

or 1996) Megapower

CPU’s. The green ready LEDs

(RDY)

indicate that the

CPUs

are

on

line and working normally. The

red failure LEDs

(FLT) indicate that the CPU has failed. The

amber selection

LEDs

(SEL)

indicate which CPU the Video

system is running

on.

The red

INT

LED, if

lit,

indicates that

there is an internal failure in the Standby Switch.

PORT

STATUS

These pairs

of

red and green LEDs indicate the

status

of the 10

system ports. The red LEDs indicate a Port failure or open

port. The green LEDs will flicker when

data

is transmitted

from the keyboards or other external devices to the megapower

CPU.

If

an operating port should fail or become disconnected,

the alert will sound and the red LED for that

port

will light.

When the CPU SELECT Switch is set to the AUTO position.

the

1985A checks CPUl and CPU2 for normal operation.

Checking for normal operation is accomplished by checking

the high speed code lines for switcher, time and date

commands. This check is done every four seconds on each

CPU. If both CPUs are functioning normally,

both

green RDY

indicators will be lit. The first CPU that the

1985A finds

operating will be selected to run the video system. Data from

the keyboards is routed to both 1995 and 1996 CPUs. Data

transmitted

to

the keyboards comes from the selected CPU.

If the selected CPU should fail, the green

RDY

LED for that

CPU will not illuminate, the red

FLT

LED

for that CPU will

light, the alert will sound, and the external

alm

contacts

for

the CPU and common relays will close. In addition, the

second CPU will

be

selected and will take over control of the

system. All keyboards and external devices will now get the

transmitted

data

from second CPU.

If

the standby CPU fails while the

primary

CPU is running the

system, the green RDY indicator for that CPU will turn off, the

red FLT LED for that CPU will light, the alert will sound, and

the

alarm contacts will closc for that CPU and common relays.

The

primary

CPU will continue to run the system.

If

power

is

lost

to

the 1985A,

data

will be routed between the

keyboards and

CPU1.

If

you

wish to run the system on CPUl while it is running

on

CPU2 move the CPU SELECT Switch from the auto position

to the

CPU1. Then return the switch to the center, AUTO.

position. Again, if you leave the switch in either CPUl

or

CPU2 (not

in

AUTO) that CPU

will

stay connected to the

system even if a failure occurs. All other alerts and relay

closures will take place.

Data

Downloading

from

a

Computer

Some 1995 or 1996 systems can use an external computer to

download software information to setup the switching system.

When downloading from an external computer, each CPU

must be downloaded separately. by

-

passing the 1985A Standby

Switch.

Figure

4

-

Front Panel

4

APPENDIX

A

TYPICAL

SYSTEM

CONNECTIONS

1678CM

TO

1985

0

I

13

I

U

1678CM

THREE

CONDUCTOR

SHEWED

BCLDON

glro

O

R

EQUVALH

AD1

678TB

M

TP8059

Q

7.5

VOLTS

AC

ISAMP

I

NOTE

'

THESE

CONNECTIONS

ARE TYPICAL

OF

ONE

SYSTEM KEYBOARD.

APPENDIX B

TYPICAL SYSTEM CONNECTIONS

1676

TO

1985

1676

CPUl

Ti

cpua

2

3

6

78

9 10

ALARM

TP8059

7.5

VOLTS

AC

1.5

UI?

NOTE :THESE CONNECTIONS ARE

TYPICAL

OF

ONE SYSTEM KEYBOARD

APPENDIX C

TYPICAL SYSTE

1696

T

il

CONNECTIONS

1

1985

AUX

START

RELAY

OCrrPvT

-BROWN

ALARM

NOTE THESE CONNECTIONS

ARE

lWlCAL OF ONE ALARM INTERFACE UNIT.

EACH

RS232

PORT

IS

PROGRAMMABLE

...

APPENDIX D (PAGE

2)

TYPICAL

SYSTEM

CONNECTIONS

1995

TO

1985

w

1

CPU'S

RECEIVE

CPU'S

\\

,

\\

I

1995

APPENDIX

E

1

TYPICAL SYSTEM CONNECTIONS

1996

TO

1985

lgg6

I

/-

Q

10

F

DATAQ-&mpob

n'

0

PGM

MON

7'

t

SPECIFICATIONS:

Humidity:

Relative humidity

behveen

8

percent and 90

percent

(non

-

condensing).

Supply

Voltage:

1985A 120

V,

60

Hz (95

to

135

VACI)

1985A/X

-

220

V,

50

Hz,

(198

to

264

VAC)

Power:

8

Watts nominal

Mounting:

Size:

Weight:

19

Ibs.

Finish:

Dark

Gray

Free

standing

or rack mount

with

standard 19” rack

(3

standard racks

high)

5

1/4”

H, 19” rack

An

American Dynamics Product

Designed and built

by

Sensormatic

CCTV

Systems

Division

One

Blue

Hill

Plaza

Pearl River,

New

York,

10965

(914) 624-7600

Technical Support Center: 1

-

800

-

442

-

2225

FAX:

914

-

624

-

7685

8000-1750-01,

Rev

D

May, 1993

01985AD

Printed in

USA

American Dynamics AD1985A Installation Instructions Manual

This manual is also suitable for

American Dynamics AD1985A Installation Instructions Manual

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