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.
4--89
The ARINC 708A formatted terrain display is transmitted as a series of 1600--bit
words, each word containing color information along a specific angle radial. The
refresh rate of the entire image is based on the number of radials transmitted. A
transmission interval of 5.00 milliseconds per radial with a total of 513 radials per
image results in an image refresh interval of 2.565 seconds with an acceptable level
of image clarity.
(5) OMS Fault Summary Word
The T
2
CAS transmits the OMS information (overall fault b it, status of all ARINC 429
digital input buses, and status of all BITE tests) listed in Table 4--24, Table 4--25 and
Table 4--26, OMS Fault Summary Words.
OMS Fault Summary Discrete Word
429 Label:
350, 351, and
352 (Octal)
Units: N/A Max Range: N/A
Appox. LSB: N/A Data Bits: 19
11 -- 29
Sign Bit: None
Pad Bits: None Transmit Interval: 100ms Data Type: Discrete
Table 4--24. OMS Label 350 Discretes
Bit FUNCTION DESCRIPTION
11 TA WS Fail (overall fault bit) 0 = Normal, 1 = Fail
12 ARINC 429 Input #1 Fail 0 = Normal, 1 = Fail
13 ARINC 429 Input #2 Fail 0 = Normal, 1 = Fail
14 ARINC 429 Input #3 Fail 0 = Normal, 1 = Fail
15 ARINC 429 Input #4 Fail 0 = Normal, 1 = Fail
16 ARINC 429 Input #5 Fail 0 = Normal, 1 = Fail
17 ARINC 429 Input #6 Fail 0 = Normal, 1 = Fail
18 ARINC 429 Input #7 Fail 0 = Normal, 1 = Fail
19 ARINC 429 Input #8 Fail 0 = Normal, 1 = Fail
20 ARINC 429 Input #9 Fail 0 = Normal, 1 = Fail
21 ARINC 429 Input #10 Fail 0 = Normal, 1 = Fail
22 ARINC 429 Input #11 Fail 0 = Normal, 1 = Fail
23 ARINC 429 Input #12 Fail 0 = Normal, 1 = Fail
24 ARINC 429 Input #13 Fail 0 = Normal, 1 = Fail
25 ARINC 429 Input #14 Fail 0 = Normal, 1 = Fail