User's Manual

Table Of Contents
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
T
3
CAS/Part No.9005000
01 = Invalid light curve setting specified at power-up
03 = Bad checksum detected at power-up
04 = Illegal op-code test failed
05 = Unsupported test failed.
(4) Strobes the watchdog timer to keep the red X and status displayed.
NOTE:
If the ACSS VSI/TRA displays error code 10, 11, 12, 29, 30, 31, or 40 an
internal ACSS VSI/TRA failure has been detected.
Figure 5-1: VSI/TRA Fault Warning Display
4. System Self-Tests
A. TCAS Flight Deck Display Test Modes
The T
3
CAS TCAS System provides two types of test modes; a short functional test mode
and an extended maintenance test. Both test modes can be activated by the TEST button
or switch on the ATC/TCAS Control Panel. The short test mode can also be activated by
an Onboard Maintenance System (OMS) or a central fault display interface unit (CFDIU).
The extended test mode can only be initiated at the end of the short test. The short test
mode is inhibited in the air if the Self-Test Inhibit programming pin (RBP-8E) is grounded.
(1) Short Test Mode
The short test mode provides a flight deck initiated functional test of the TCAS
RA and TA displays and associated TCAS interfaces. It also provides an aural
annunciation of the TCAS system status.
The short test mode is available in all TCAS operational modes (Standby, TA
Only, or TA/RA) when on the ground. If a TA or RA occurs while airborne, the
test is terminated and normal operating status is resumed. The test mode is also
terminated if any of the Advisory Inhibit discrete inputs (grounds) are received on
pins RBP-5A, RBP-5B, RBP-5C, or RBP-5D.
Pub. No. 8600200-001, Revision 004
34-45-29
5-3
04 Nov 2014
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