BendixKing CAS 66A - Manual (Page 27)

PS 578A FUNCTION SELECTOR, ATC CODE SELECT & MOMEN-
TARY TCAS DISPLAY FLIGHT LEVEL SELECT
The outer concentric knob on the right selects the Mode
S and TCAS mode of operation.
Rotating the function knob (CCW) to the TST position
initiates a comprehensive self test lasting approximately
eight seconds. All segments of the display are illuminat-
ed for 2 seconds, then the code window will display the encoded altitude
for four seconds, then the control unit will return to the previously select-
ed mode. (Refer to the Test section in the Appendix for a detailed
description of test functions.)
SBY places the Mode S Transponder and TCAS in standby. SBY is
annunciated on the display window. Use SBY during ground operations.
ON activates the selected transponder without altitude reporting. TCAS
is in standby. ON is annunciated in the display window.
ALT activates Mode S transponder with altitude reporting, TCAS system
in standby.
Selecting VFR for more than 3 seconds changes the ATC code to the
pre-programmed VFR code (Typically 1200). VFR is annunciated in the
display window for the 3 seconds prior to switching the programmed
code The control unit will return to the mode selected prior to making the
VFR selection.
The VFR code can be programmed to be any code by the following tech-
nique:
a. Place the function selector to VFR.
b. Select the VFR code as required.
c. Push the Ident (IDT) button, or wait 3 seconds, or rotate the Function
switch to the desired mode.
The TA (Traffic Advisory) mode. Activates the Mode S transponder, alti-
tude reporting and TCAS “TA ONLY” mode. Traffic will be presented on
the traffic (TA) display. “TA” mode is annunciated in the control unit dis-
play window and “TA ONLY” will be annunciated on the TCAS traffic dis-
play(s).
Controls and Displays CAS 66A Pilot's Guide
Effective Date 6/04 006-08746-0000 Rev 6 23
TCAS I Pilots Guide 2/8/06 3:52 PM Page 23