Procedural Steps (Cont)
Operating procedures for the R-124.
Operating procedures are keyed to the intercom.
a . Connect the CVC helmet to the chest plate switch. Connect the chest plate
switch to any of the R-124 receptacles (5, 10, 12, or 14 in the intercom figure).
b. Set FUNCTION SWITCH (2) and FUNCTION SWITCH (15) to the intercom BC
position. (Both function switches must be in the BC position to allow all four boxes
access to intercom.)
Adjust VOLUME CONTROL (4) for desired audio level in the headsets.
5. Record the BDAR action taken. When the mission is completed, as soon as
practicable, repair tank using standard maintenance procedures.