Countermeasures Control

TM 32-5865-218-24&P

. . 2.5 lb (1.13 kg)

Weight . . . .. . . . . . . . . . . . . . . .

Environmental:

Altitude

Operating . . . . . . . . . . . . . . . . 30,000 ft (maximum)

Nonoperating . ... . ... . . . . . . . 40,000 ft (maximum)

Temperature

.. . . . . . . . . . . . . . . . . .. . -40 C (-40 F) to

Operating

+55C (+131 F)

-57C (-71C) to

Nonoperating

+85C (+185F)

Humidity . . . . . . . . . . . . . . .. . 0 to 98%

1-9. Countermeasures Control. The following paragraphs provide

description and data for general support maintenance of the counter-

measures control.

The countermeasures control is a metal

a. Description.

enclosure that contains one circuit card assembly, one voltage

regulator two relays, one RF switch, and one front panel circuit

breaker. The countermeasures control conditions, distributes, and

controls system audio signals between external equipments. The

countermeasures control also monitors system caution sensors.

Countermeasures control power and input/output connections are made

at the rear panel (see table 1-2).

Table 1-2.

Countermeasures Control Power and Signal

Connections

Connector

Function/Remark

markinq

Radiated BITE signal

Transmitter audio no. 2 (recorder)

Receiver no. 2 audio (recorder)

Nav audio (voice recorder)

Receiver no. 1 audio

Receiver no. 1 audio return

Transmitter no. 1 audio

Recorder no. 3 audio (FM)

Transmitter no. 3 audio (FM)

Transmitter no. 4 audio (PVT)

Receiver no. 4 audio (PVT)

Interphone

Override audio

Receiver audio no. 5 (DF/ITC)

AUX audio (TLQ-17A)

MIC HI

MIC LO

Shield

HSDT HI

1-5