SECTION III. FFCS AND RIT CREW STATIONRADIO SWITCH
FFCS CREW STATION ADDRESS SWITCH SETTING PROCEDURES
Perform the following procedure to change the FFCS Crew Station Address switch
setting located on the bottom of the FFCS. Crew Station Addresses are as shown on
(FAASV) Vehicle Decal
a. Rotate switch cover screw counterclockwise (ccw) and remove.
b . Using a jeweler's screwdriver, rotate the adjustment screw ccw, until stop
is reached. This is the setting for Crew Station #1.
c . Each click of the switch in a clockwise direction changes the address by
one position. For example, with the switch in the full ccw position (Crew
Station #1), turning the switch two clicks in a clockwise direction will set
the FFCS to Crew Station #3.
d . The address switch has 8 positions. Crew Station settings are numbered 1
through 6. Position 7 on the switch is the same as position 6. Position 8 on
the switch is normally used for testing, however, if the MCS is not
functioning correctly, e.g., loss of timing signal (sync pulse), but is
supplying power to the rest of the system, setting the switch to position 8
will result in the FFCS putting out a timing signal like the MCS.
e . When the correct Crew Station address has been set replace switch cover
screw and hand tighten.
RIT RADIO SELECTION SWITCH SETTING PROCEDURES
This vehicle does not contain any RITs.