190-01004-02
GTN 625/635/650 TSO Installation Manual
Rev. F
Page 5-21
5.2.10 Discrete Outputs
NOTE
Default settings for discrete outputs are shown in the table below. See Section 6.6.13 for
configuring discretes to perform another function.
[1] The operation of the GPS SELECT can be configured. See Section 6.6.10.
An asterisk (*) following a signal name denotes that the signal is an Active-Low, producing a low (ground)
on the output when active.
All discrete outputs from the GTN are Active-Low. Each is an “open drain” output capable of sinking 500
mA when active.
5.2.10.1 OBS ANNUNCIATE*
The OBS ANNUNCIATE* output is driven to indicate GPS OBS mode of operation. This output is active
when the OBS annunciation is on the display.
5.2.10.2 GPS ANNUNCIATE*
The GPS ANNUNCIATE* output is driven when the unit is configured with a single CDI/HSI and the
GPS data is being displayed on the CDI/HSI. This output parallels the GPS annunciation on the display.
Pin Name
Connector
Pin
I/O
OBS ANNUNCIATE*
P1001
14
Out
GPS ANNUNCIATE*
P1001
15
Out
WAYPOINT ANNUNCIATE*
P1001
33
Out
TERMINAL ANNUNCIATE*
P1001
34
Out
TAWS AUDIO ACTIVE ANNUNCIATE*
P1001
35
Out
VLOC ANNUNCIATE*
P1001
52
Out
LOI ANNUNCIATE*
P1001
53
Out
MESSAGE ANNUNCIATE*
P1001
54
Out
APPROACH ANNUNCIATE*
P1001
55
Out
ILS/GPS APPROACH ANNUNCIATE*
P1001
56
Out
TAWS/TERRAIN INHIBIT ANNUNCIATE*
P1001
57
Out
TAWS WARNING ANNUNCIATE*
P1001
71
Out
TERRAIN NOT AVAILABLE ANNUNCIATE*
P1001
72
Out
TAWS CAUTION ANNUNCIATE*
P1001
73
Out
GPS SELECTANNUNCIATE* [1]
P1001
74
Out
TRAFFIC TEST ANNUNCIATE*
P1001
75
Out
TRAFFIC STANDBY/OPERATE ANNUNCIATE*
P1001
76
Out
SUSPEND ANNUNCIATE*
P1002
3
Out
GSR REMOTE POWER*
P1002
12
Out
RP MODE ANNUNCIATE*
--
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Out
Summary of Contents for GTN 625
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