User's Manual

SYSTEM DESCRIPTION AND INSTALLATION MANUAL
T
3
CAS/Part No.9005000
Table 4-1: T
3
CAS Computer Unit Interface Description (cont)
(Applicable to Part No. 9005000-10000, -10101, -10202, -10204, and -11203)
Connector
Pin
Designation
Functional Description
RTP-2K
Discrete Input (Gnd/Open)
XPDR Mode S Address Bit A4.
RTP-3A, 3B
Instrument Landing System #1 (Left)
This low-speed bus inputs all signals associated with the instrument landing
system to the T
3
CAS.
RTP-3C, 3D
FCU #1 Interface [RTP-3C (A), RTP-3D (B)]
This low-speed input is provided for applications to receive flight control unit
information.
RTP-3E, 3F
ARINC 429 FMC (Engine Out) - Performance Limit Input: [RTP-3E (A), RTP-3F
(B)]
This high-speed ARINC 429 input is provided for TAWS applications to receive
climb rate performance limit information from an external device such as a Flight
Management Computer. NOTE: These pins are designated for FMC (Engine Out)
if T
3
CAS is operating as TAWS and TCAS only with internal transponder disabled.
Else these pins are Spares.
RTP-3G, 3H
FCU #2 Interface [RTP-3G (A), RTP-3H (B)]
This low-speed input is provided for applications to receive flight control unit
information. NOTE: These pins are designated for FCU #2 if T
3
CAS is operating as
TAWS and TCAS only with the internal transponder disabled. Else these pins are
Spares.
RTP-3J, 3K
ARINC 429 Input: ADIRU #1/ADR [RTP-3J (A), RTP-3K (B)]
This low-speed 429 input from the Air Data/Inertial Reference Unit (ADIRU) #1
provides altitude, airspeed, altitude rate and temperature information to the T
3
CAS.
NOTE: These pins are designated for ADIRU #1 if T
3
CAS is operating as TAWS
and TCAS only with internal transponder disabled. Else these pins are Spares.
RTP-4A, 4B
Slat/Flap Control Computer [RTP-4A (A), RTP-4B (B)]
This low-speed bus inputs flap angle to T
3
CAS.
RTP-4C
Discrete Input (Gnd/Open)
XPDR Mode S Address Bit A5.
RTP-4D, 4E
ATC/TCAS Control Panel [RTP-4D (A), RTP-4E (B)]
This low-speed bus controls the TCAS/ATC interfaces and the TCAS display.
NOTE: These pins are designated for the ATC/TCAS control panel if T
3
CAS is
operating in full configuration mode with TAWS, TCAS and internal transponder
enabled. Else these pins are Spares.
RTP-4F
Discrete Input (Gnd/Open)
XPDR Mode S Address Bit A6.
Pub. No. 8600200-001, Revision 004
34-45-29
4-3
04 Nov 2014
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