TM-9-2350-274-BD

M109/M110/M578 VEHICLES HOWITZER, MEDIUM, SELF-PROPELLED FULL-TRACKED

TECHNICAL MANUAL; OPERATORS, ORGANIZATIONAL DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

JANUARY 1984

TM-9-2350-274-BD - Page 159 of 219

TM 9-2350-274-BD

COMMUNICATIONS SYSTEM

Procedural Steps (Cont):

b.

Connect four wires to white (switch position 6), black (1), shield (7), and red (4)

wires.

c.

Hook the white wire to one of the inside jacks on the Soviet chest plate and

the black wire to the other inside jack (Points A and B on chestplate figure).

d .

Hook the shield wire to one of the outside jacks and the red wire to the other

outside jack. (points C and D on chest plate figure).

e. Reassemble helmet. If you can receive but not transmit, reverse the red wire

lead and shield wire lead on the two outside jacks.

6. Operating procedures for the R-124.

NOTE

Operating procedures are keyed to the intercom.

11-13