Control, Intercommunication Set C-2296/VRC

TM 11-5820-498-35

From

Unit

C-2297/VRC . . . . . . . . . . . . . . . . . . . . . J902 or J903, pin D . . . . . . . . . . . . . . . Amplifier A80, terminal 2

Amplifier A80, terminal 4 . . . . . . . . . S902

J904, pin K

S902 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CX-4723/VRC . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin K . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin K

AM-1780/VRC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J505 (J506, J507), pin K . . . . . . . . . K502, terminals 13 and 12

K502, terminal 12 . . . . . . . . . . . J501, pin U

CX-4723/VRC . . . . . . . . . . . . . . . . . . . . . Pin U . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin U

MT-1029/VRC . . . . . . . . . . . . . . . . . . . . . . J22, pin N . . . . . . . . . . . . . . . . . . . . . J24, pin N

AM-2060(*)/GRC . . . . . . . . . . . . . . . . . . J3, pin N . . . . . . . . . . . . . . . . . . . . . . . . J2, pin D

. . . . . . . . . . . . . . . . . . . . . Pin D . . . . . . . . . . . . . . . . . . . . . . . . . . Pin D

CX-4655/GRC

Receiver-transmitter . . . . . . . . . . . . . . . . . J3, pin D . . . . . . . . . . . . . . . . . . . . . . . . . Module A22

C-2297/VRC to alert the C-2297/VRC user that

c. Control, Intercommunication Set

the external C-2296/VRC is in the circuit.

C - 2 2 9 6 / V R C . The C2296/VRC is usually

(2) Keying transmitter. To communicate on

mounted on the outside of the vehicle.

the radio system, the C-2296/VRC INT-RAD

TRANS switch S61 is set to RAD TRANS posi-

(1) Circuit setup. The circuit setup is the

tion. When the H207/VRC push-to-talk switch is

same as given in a(1) above. In addition, the

depressed, a ground is applied to the transmit cir-

OFF-EXT switch S901 in the C2297/VRC must

cuits of the receiver-transmitter, which, in turn,

be set to EXT. This operation permits communi-

causes the transmitter to set up for transmit

cation from the C2296/VRC to pass through the

mode to permit speech signals ((3) below) to be

C-2297/VRC into the intercom and radio system

applied to the distant radio station.

circuits. It also lights the EXT lamp on the

Unit

From

C-2296/VRC .. . . . . . . . . . . . . . . . .

TB61, pin 4 . . . . . . . . . . . . . . . . . . . . . .

S61 (RAD TRANS position)

S61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

J61, pin H

Cable (fig. 4-5, note 9) . . . . . . . . . . . . . .

Pin H .. . . . . . . . . . . . . . . . . . .

Pin H

C-2297/VRC . . . . . . . . . . . . . . . . . . . . .

J901, pin J . . . . . . . . . . . . . . . . . . . . .

S901 (EXT position)

J901 . . . . . . . . . . . . . . . . . . . . . . . . . . . .

S902

S902 . . . . . . . . . . . . . . . . . . . . . . . . . . .

J904, pin D

CX-4723/VRC . . . . . . . . . . . . . . . . . . . . .

Pin D . . . . . . . . . . . . . . . . . . . . . . . . . .

Pin D

AM-1780/VRC . . . . . . . . . . . . . . . . . . . . . . . .

J506 (J506, J507), pin D . . . . . . . . .

K501, terminals 4 and 3

K501, terminal 3 . . . . . . . . . . . . . . . . .

S502 (CDR + CREW position)

S502 . . . . . . . . . . . . . . . . . . . . . . . . . . .

S501 (OTHER and INT ONLY

positions)

S501 . . . . . . . . . . . . . . . . . . . . . . . . . . . J501, pin S

CX-4723/VRC . . . . . . . . . . . .

Pin S . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin S

MT-1029/VRC . . . . . . . . . . . . . . . . . . . .

J22, pin S . . . . . . . . . . . . . . . . . . . . J24, pin H

AM-2060(*)/GRC . . . . . . . . . . . . . . . . . . . . .

J3, pin Ha . . . . . . . . . . . . . . . . . . . . . . . K1, terminal 5

J3, pin Ha . . . . . . . . . . . . . . . . . . . . . J2, pin C

CX-4655/GRC . . . . . . . . . . . . . . . . . . . .

Pin C . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin C

Receiver-transmitter . . . . . . . . . . . . . . . .

J3, pin C . . . . . . . . . . . . . . . . . . . . . . . . K2, terminal 5

Indicates parallel connection from J3, pin H.

(3) Radio transmission. After the transmitter

plifier

A80,

the C-2297/VRC, and the

has been keyed ((2) above) and the operator

AM-1780/VRC to the transmit circuits of the re-

speaks into the H207/VRC microphone, voice

ceiver-transmitter.

signals are applied through the C-2296/VRC am-

Unit

From

TB61, pin 3 . . . . . . . . . . . . . . . . . . . . . . . . Amplifier A80, terminal 2

C-2296/VRC . . . . . . . . . . . . . . . . . . . . .

Amplfier A80, terminal 4 . . . . . . . . . J61, pin K

Pin K . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin K

Cable (fig. 4-5, note 9) . . . . . . . . . . . . . . .

J901, pin K . . . . . . . . . . . . . . . . . . . . . . S901, (EXT position)

.................

C-2297/VRC

S901 . . . . . . . . . . . . . . . . . . . . . . . . . . . .

S902

S902 . . . . . . . . . . . . . . . . . . . . . . . . . . . J904, pin K

Pin K

Pin K . . . . . . . . . . . . . . . . . . . . . . . . . .

CX-4723/VRC . . . . . . . . . . . . . . . .

K502, terminals 13 and 12

J505 (J506, J507), pin K . . . . . . . . . . . . . .

...................

AM-1780/VRC

K502, terminal 12 . . . . . . . . . . . . . . . . J501, pin U

See footnote at end of table.

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