PRIMUS
r
1000 Integrated Avionics System
A28--1146--112--00
PRIMUS
â
II Radio System
C--30
Step
Procedure
3
Continue holding the TST button. The words COM TEST are
displayed, indicating that the COM is performing a self--test.
4
Continue holding the TST button. Upon completion of the
self--test, the words COM PASS in green or COM ERR in
red are displayed in the COM window.
NOTE:
If the COM squelch was open prior to running the PAST, the squelch closes
during the test.
VHF COM PAST Procedure
Table C--8
ATC TRANSPONDER AND TCAS PAST
Refer to table C--9 for the ATC transponder and TCAS PAST procedures.
Step
Procedure
1
Position the cursor in the ATC/TCAS window and select
transponder 1.
2
Push and hold the TST button. SYS TEST will appear in
the ATC/TCAS window.
3
Continue holding the TST button. The words ATC TEST are
displayed indicating that the transponder is performing
self--test.
4
Continue holding the TST button. Upon completion of the
test, the words ATC PASS in green, or ATC ERR in red are
displayed in the ATC/TCAS window. In addition, the TCAS
aural warning sounds TCAS TEST, TCAS PASS, or TCAS
FAIL separately.
5
Repeat for transponder 2.
NOTES:
1. If a Honeywell TCAS is installed, it does not require that the TST button
to be held to activate its test sequence. A momentary push starts
TCAS (but only TCAS) testing.
2. With a Honeywell TCAS installed, it is possible to hold the TST button long
enough (8 seconds), with other conditions in the right sequence, to force
TCAS and the TCAS traffic display into the maintenance mode. Normal
operation can be re--established by entering a transponder code.
3. TCAS itself can also be tested with the cursor in the TCAS display
features window.
ATC Transponder and TCAS PAST Procedure
Table C--9