BendixKing CAS 67A TCAS II - Manual (Page 37)

TCAS II Pilot’s Guide
Effective Date 4/99 006-08499-0000 Rev 5 35
FUNCTION SELECTOR CTA 81 B CONTROL UNIT ONLY
(SELECTS OPERATING MODE)
There are no TCAS functions on the ATC 2 (3 most clockwise) posi-
tions. The left ATC 1 TEST position (CCW) tests the Mode S
Transponder and the TCAS system. The right ATC 2 TEST position
(CW) tests the ATCRBS transponder only.
Moving the spring loaded knob to either TEST position initiates a self
test in the respective unit. Refer to the Test section in the Appendix
for a detailed description of test function.
Selection of either STBY position places both transponders and
TCAS II system in standby. Use standby during ground operations.
ATC 1 ON activates the Mode S transponder. TCAS in Standby.
ON ATC 2 activates the ATCRBS transponder. TCAS in standby.
TA (Traffic Advisory) mode. Presents traffic location on displays but
does not issue Resolution Advisories. TA mode annunciation
appears on displays. Mode S transponder activated with altitude
reporting.
TA/RA (Traffic Advisory and Resolution Advisory) mode. Presents
traffic location on displays and issues audio visual Resolution
Advisories for traffic determined to be a threat. TA/RA mode annunci-
ation appears on PPI or ITA 81A displays. Mode S transponder acti-
vated with altitude reporting.
Controls and Displays
STBY
ATC 1 ON
TA TA/RA
TEST
ON ATC 2
STBY
TEST