TM 9-2350-275-BD
COMMUNICATIONS SYSTEM
Procedural Steps (Cont):
8. Record the BDAR taken. When the mission is completed, as soon as practicable,
repair vehicle using standard maintenance procedures.
General Information:
This procedure gives installation and operating instructions for the Soviet R-124
intercom.
Limitations:
q The AN/VRC-12 series radio cannot be wired through this intercom. Therefore, the
radio can only be operated by one man.
Personnel/Time Required:
q 1 soldier
q 1 hour
Materials/Tools:
q Handset, H-189/6R, (each chestplate), or standard CVC helmet
q Intercom, Soviet, R-124
q Plate, chest, Soviet (one for each control box)
q Tape, electrical
q Wire, 4-conductor, 18-gauge, 5-foot length or cable, telephone, W D-l/TT, 5-foot
length (two required)
q Wire 2-concor 12-gauge 3 foot length
q Gun, soldering
q Solder, rosin-core
Other Option:
q Field expedient intercom (refer to para. 11-22).
Procedural Steps:
NOTE
All wires in the R-124 interconnecting cables are soldered
directly to the internal connecting points in the individual
boxes. Use care in removal/installation. Do not disconnect
individual boxes unless absolutely necessary.
1.
Remove the R-124 from Soviet vehicle and install in U.S. vehicle.
2. Wire the H-189/GR handset or CVC helmet using the procedures listed in para.
11-26.
NOTE
Power is obtained in the same manner as listed in step 1 of para. 11-26.
3. Attach the red and white wires from the power cable to the black terminal on the
bottom of the A-1 box of the R-124. Attach the black and green wires from the power
cable to the ground strap on the A-1 box. See position 6 in the illustration on the
following page.
