MCS: CONTROLS AND INDICATORS - Continued
Provides unregulated power to the MCS from the radio
Cable connector supplying audio signals to a loudspeaker
Cable connector providing interface to incoming vehicle
Provides an interface for a twisted pair of wires used to
connect the MCS to another MCS or a field telephone
Cable connector interface to Radio B
Cable connector interface to Radio A
The SYSTEM switch is used to select one of five MCS operating modes. The
OFF position removes dc power, making the intercom system inoperable.
Positions PROG 1, PROG 2, and PROG 3 define the level of access of each
crewstation to the radios. The level of access is programmed into the MCS by
the vehicle commander and/or crewmember. Position LISTENING SILENCE
allows all connected crew stations to have receive only access to all radios.
Position ALL allows connected crew stations to receive and transmit on all
MASTER CONTROL STATION (MCS)
Figure 2- 2. SYSTEM Control Knob of MCS
Table 2-2. SYSTEM Switch Positions of MCS and Resulting Display
Power is disconnected from all VIS units.
Allows access by crewstations to system radios as
programmed by the commander/crewmember for this
specific program setting.