Enclosure

TM 5-6350-262-14/5

NAVELEX 0967-466-9050

TO 31S9-4-38-1

b. Enclosure. The control unit enclosure is designed to

This manual covers only the alarm set control unit C-9412(

provide protection against easy access by unauthorized

)/FSS-9(V). No known differences exist for the model covered

personnel. Construction is of welded, 16 gauge steel. The

by this manual.

enclosure contains no external openings or knockouts except

for the four mounting holes provided in the rear panel. (An

opening will be required for installation. Refer to Chapter 2.)

1-11. Tabulated Data

A full-size, flange-over type door provides access to the

interior components. A full-length piano-type hinge is used to

a. Control Unit.

mount the door. The door is latched in the closed position by

means of a double-action high-security, tubular, key lock. The

Weight (less battery and

control unit is shipped from the factory equipped with two keys

Data Transmitter

each for the door lock and operating mode switch. The lock

T-1257( )/FSS-9(V)

38 pounds.

number is identified by the tag on the key ring. A door tamper

Height

23.20 inches.

switch installed inside the enclosure beneath the door mating

Width

14.60 inches.

surface detects any opening of the enclosure door. Provisions

Depth

8.16 inches.

are provided to bypass the alarm function of the door tamper

Color

Gray per Federal

switch when the door is opened for maintenance. An ac

Std. 595, color

power indicator and key operated mode control switch are

chip 26492.

mounted in the door panel.

Power requirements:

Primary

110 to 125 V ac,

c. Power Supply. The control unit power supply is a solid

48 to 62 Hz.

state device used to convert facility ac power to various ac

Emergency

24 V dc; supplied by

and dc voltages for use by the control unit and other system

internal battery.

components. The power supply contains the power supply

Refer to para. b.

and battery charger circuitry, an ac power monitor, and an

Lamp, ac indicator

6.3 volts ac.

audible alarm (sonalert) which operates when an alarm is

Fuses:

detected in the test/reset mode only. A power switch and the

2 amperes.

ac and dc power fuses are located on an exterior wall of the

1 ampere.

power supply for accessibility. The power supply base is an

Environmental (operating):

-20 to + 150oF.

aluminum plate to facilitate conductive cooling.

Temperature range

Humidity

up to 95 percent

d. Battery. Emergency operating power is supplied by a

relative humidity.

sealed, rechargeable battery. The battery sits in the bottom of

Environmental (non-operating):

-30 to + 1650F.

the control unit enclosure to permit easy' removal and

Temperature range

replacement. The battery is equipped with mechanically

Humidity

up to 95 percent

polarized terminal connections to prevent inadvertent reverse

relative humidity.

polarity connection during installation or maintenance.

Shock

20 g, 11 ms

duration and

bench handling.

e. Status Processor. The status processor consists of 11

Vibration

withstand

plug-in printed wiring board (pwb) assemblies mated to card-

transportation

edge receptacle connectors. The receptacle connectors are

conditions.

attached to a master pwb which provides electrical

interconnect between boards. A twelfth printed wiring board

assembly, display board A12, plugs onto pwb All. The printed

b. Battery.

wiring board assemblies utilize an ejector mechanism to

facilitate removal. Each printed wiring board is numbered to

Type

Sealed, rechargeable.

correspond to a number on the housing for proper card

Weight

34 pounds, 4 ounces.

location and keyed to prevent insertion into the incorrect

Height

6.5 inches.

position. All adjustments and test points are accessible while

Width

10.03 inches.

the pwb's are installed. A multipin connector is used for the

Depth

6.46 inches.

electrical interface between the status processor and other

Voltage capacity

.24 volts dc, 20 ampere

control unit circuitry to permit easy removal and replacement

hour.

of the status processor.

1-10. Difference Between Models

1-6