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 157 of 219
TM 9-2350-274-BD
COMMUNICATIONS SYSTEM
11-11. REPLACE AN/VIC-1 INTERCOM WITH SOVIET R-124 INTERCOM
General Information
This procedure gives installation and operating instructions for the Soviet R-124
intercom.
Limitations:
●
Turret cannot be rotated with drivers box secured.
Personnel/Time Required:
●
1 soldier
●
1 hour
Materials/TooIs:
●
Handset, H-189/GR, or standard CVC helmet (each chest plate)
●
Plate, chest, Soviet (one for each control box)
●
Tape, electrical
●
Wire, 4-conductor, ill-gauge, 5-foot length or cable, telephone, WD-1/TT, 5-foot
length (two required)
●
12 Gauge wire, 3-foot (two required)
●
Gun, soldering
●
Solder, rosin-core
Other Option(s):
●
Field expedient intercom (refer to para. 11-10.)
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. Locate the power cable that runs from the turret wall. Remove the cable from the
connection.
Without removing the connector from the cable, strip back and remove
approximately four inches of the outer insulation.
Stagger the splices, and scrape
approximately 1/4 to 1/2-inch of the inner insulation off each of the four wires in the
cable.
3. Using two 12 gauge wires 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 blue and green
wires from the power cable to the ground strap on the A-1 box. See position 6 in the
intercom figure.
11-11
Back to Top
