User's Manual Part 2

T
2
CAS / Part No. 9000000
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
34-43-20
15 Feb 2003
Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
5--11
• TAWS APM FAIL: Amber
• XFER IN PROCESS: Green
• C/F LOAD STATUS: Red
(b) The XFER IN PROCESS LED and C/F LOAD STATUS LED will be extinguished.
(c) The TAWS P/F STATUS, TAWS IO FAIL, TAWS APM FAIL and C/F LOAD
STATUS LEDs will be set for the fault information of the current and previous
flight legs for a period of 11 seconds ( ±1 second). The first time the push to test
button, on the T
2
CAS unit, is depressed the current flight leg information is
displayed. Subsequent activations of the push to test button, on the T
2
CAS unit,
will display faults from previous flight legs in order from most recent to least
recent.
(d) If the push to test button, on the T
2
CAS unit, is reactivated during the display of
the tenth previous flight leg fault information (or during the display of the oldest
flight leg stored in the BITE log), then the LEDs, on the T
2
CAS unit, will flash at 2
Hz for 3 seconds and then extinguish, terminating the display mode.
(5) If a TCAS or TAWS/RWS fault is detected, refer to the Fault Isolation section for
troubleshooting information.
5. Return to Service Test
AnytimeaT
2
CAS LRU is removed and replaced following repair or maintenance, a return to
service test is required. The System Self--Test procedures referenced in paragraph 4.A. and
4.B. are sufficient to che ck all system parameters.
NOTE: Anytime the T
2
CAS APM is removed and replaced, the APM must be reconfigured
using the procedures in section 6.C. or 6.D.
6. Operational Software Loading Using an ARINC Portable Data Loader,
RS232 Port or Compact Flash Card
When updating the TT--950/951/952 Computer Unit with an ARINC portable data loader PDL
or Compact flash card, verify the current TT-- 950/951/952 Computer Unit software part
number prior to continuing for Flight Deck system only.
NOTE: The TCAS operational software can ONLY be loaded using a conventional ADL/PDL
dataloader and the TAWS/RWS operational software and Database can ONLY be
loaded using the Compact flash card. Additionally, the TAWS/RWS APM
Configuration Data (referred to as ACD) and APM Application Data (referred to as
Aircraft Specific Database or ASDB) can be dataloaded using either a Compact Flash
card or through the RS232 interface.