User's Manual

Table Of Contents
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
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CAS/Part No.9005000
Table 4-14: TAWS/XPDR Programmable Discrete Outputs
Digital Signal Definition
Pin#
Notes
Ground Discrete Output RTP-13B
GPWS Caution /TAWS/XPDR Lamp 500 mA
Strobed Output Pin
Ground Discrete Output RTP-13C
Spare /TAWS/XPDR 500 mA
Strobed Output Pin
Ground Discrete Output RTP-13D
GPWS Warning /TAWS/XPDR Lamp 500 mA
Strobed Output Pin
Ground Discrete Output RTP-13E
Spare /TAWS/XPDR 500 mA
Strobed Output Pin
Ground Discrete Output RTP-13F
Spare /TAWS/XPDR 500 mA
Strobed Output Pin
Ground Discrete Output RTP-13G
Spare /TAWS/XPDR 500 mA
Strobed Output Pin
Ground Discrete Output RTP-13H
Spare /TAWS/XPDR 500 mA
Strobed Output Pin
Ground Discrete Output RTP-13J
GND Disc Output 500 mA
Terrain Display Select #1
Ground Discrete Output RTP-13K
Spare /TAWS/XPDR 500 mA
Strobed Output Pin
Ground Discrete Output RTP-14A
GND Disc Output 500 mA
Terrain Dispay Select #2
Ground Discrete Monitor
Output
RTP-14B GPWS Monitor 500 mA
Ground Discrete Monitor
Output
RTP-14C Terrain Not Available Monitor 250 mA
Ground Discrete Monitor
Output
RTP-14D Terrain Monitor 250 mA
(a) Discrete Input Ground/Open
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CAS provides ground/open discrete inputs for aircraft level discrete
interfaces. The GROUND and OPEN logic states are determined as
follows:
GROUND ≤ 3.5 V dc at the input OR a resistance of less than 10
ohms to ground.
OPEN ≥ 14.0 V dc at the input OR a resistance of greater than 100k
ohms to ground.
Pub. No. 8600200-001, Revision 004
34-45-29
4-115
04 Nov 2014
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