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--13
Table 4--1. TT--950/951/952 T
2
CAS Computer Unit Interface Description (cont)
Connector Pin
Designation
Functional Description
RMP--14C RA Display No. 1 Status Discrete Input (NO)
This ground/open discrete input (Note 1) provides the functional status of RA Display No.
1. A ground on this pin indicates a valid display. If this discrete is not used by the RA
display, connect to aircraft ground to prevent RA DISPLAY No. 1 fail message during
self--test.
RMP--14D, 14E Selected Altitude701/720 ARINC 429 Bus Input
Reserved for future use.
RMP--14F, 14G ARINC 429 XT Coordination No. 1 Input: [RMP--14F (A), RMP--14G (B)]
This differential pair input is a high speed ARINC 429 bus (100k bits/second nominal),
that receives data from the No. 1 Mode S Transponder.
The labels on this bus are as follows: 013, 015, 016, 203, 271, 272, 273, 274, 275, 276,
277, 350.
RMP--14H, 14J ARINC 429 XT Coordination No. 2 Input: [RMP --14H (A), RMP--14J (B)]
This differential pair input is a high speed ARINC 429 bus (100k bits/second nominal),
that receives data from the No. 2 Mode S Transponder.
The labels on this bus are as follows: 013, 015, 016, 203, 271, 272, 273, 274, 275, 276,
277, 350.
RMP--14K Reserved for TAWS/RWS use.
RMP--15A
to
RMP--15H
Reserved for TAWS/RWS use.
RMP--15J, 15K ARINC 429 TX Coordination No. 1 Output: [RMP--15J (A), RMP--15K (B)]
This differential pair output is a high speed ARINC 429 bus (100k bits/second nominal),
that transmits data from the T
2
CAS computer unit to the No. 1 Mode S Transponder.
The labels on this bus are as follows: 273, 274, 275.