BendixKing MST 67A - Manual (Page 9)

TRANSPONDER CONTROL UNIT; CTA 81A, CTA 81B,
CTA 81C, CTA 81D
CTA 81A & D Dual Mode S Control Unit, CTA 81C Single Mode
Mode S Control Unit (CTA 81A shown)
CTA 81B Mode S/ATCRBS Control Unit
CTA 81A, CTA 81B CTA 81C AND CTA 81D CONTROLS AND
DISPLAYS
The CTA 81 ( ) Control Unit is the control for the transponder. The
CTA 81A/D controls two Mode S transponder. The CTA 81B controls
one Mode S transponder and one ATCRBS ARINC 572 transpon-
der. The CTA-81C controls one Mode S transponder.
Note: Controls vary depending on CTA 81 ( ) configuration installed.
Control functions same as typical unit shown.
MST 67A Pilot’s Guide
Effective Date 7/04 006-18301-0000 Rev 0 5
Controls and Displays
ACT 12 R
1
STBY
ALT OFF ALT ON
TA
TA/RA
ATC
2 IDENT
ATC
TEST
ATC
FAIL
FL
TCAS RANGE
3
5 10
15
ABOVE
NORM
BELOW
FUNCTION
SELECTOR
DISPLAY
WINDOW
FAIL
LAMP
TRANSPONDER
SELECTOR
CODE
SELECTOR
KNOBS
IDENT
(PUSHBUTTON)
ABOVE/
BELOW
KNOBS
CODE
SELECTOR
KNOBS
ACT 12 R
NO
STBY
ATC 1 ON
TA TA/RA
ALT
OFF IDENT
ATC
TEST
ATC
FAIL
FL
TCAS RANGE
ABOVE
NORM
BELOW
3
5 10
15 ON ATC 2
STBY
TEST
RANGE
SELECTOR
FLIGHT LEVEL
(PUSHBUTTON)
FUNCTION
SELECTOR