Garmin GIA 63 Installation Manual page 79

4.6.2.3 Com/VOR/ILS Audio
Pin Name
COM 500Ω AUDIO OUT HI
COM 500Ω AUDIO OUT LO
VOR/LOC 500Ω AUDIO OUT HI
VOR/LOC 500Ω AUDIO OUT LO
VOICE ALERT 500Ω AUDIO OUT HI
VOICE ALERT 500Ω AUDIO OUT LO
500Ω COM AUDIO and 500Ω VOR/ILS AUDIO each supply 100 mW into a 500 Ω load. 500Ω VOICE
ALERT AUDIO supplies 50 mW into a 500Ω load. These are balanced outputs and the LO output must
be connected.
500Ω COM AUDIO is the summation of the COM receiver audio, COM sidetone audio, and
INTERCOM MIC audio.
4.6.2.4 Digital Audio
Pin Name
COM DIGITAL AUDIO OUT
ON-SIDE COM MIC DIGITAL AUDIO IN
VOICE ALERT DIGITAL AUDIO OUT
VOR/LOC DIGITAL AUDIO OUT
CROSS-SIDE COM MIC DIGITAL AUDIO IN
(011-01105-20 AND 011-01105-30 ONLY)
When interfaced to a GMA 1347 audio panel, these can be used in place of analog audio lines. In dual
GMA installations the CROSS-SIDE COM MIC DIGITAL AUDIO IN allows a working GMA to access
digital audio from both GIAs in the case of a single GMA failure.
4.6.2.5 Discrete Inputs
Pin Name
TRANSMIT INTERLOCK*
COMM REMOTE TRANSFER*
VOR/ILS REMOTE TRANSFER*
INACTIVE: 10 ≤  V in ≤  3 3VDC or Rin ≥ 100kΩ
ACTIVE: Vin ≤ 1.9VDC with ≥  7 5 uA sink current, or Rin ≤ 375Ω
Sink current is internally limited to 200 uA max for a grounded input
COM REMOTE TRANSFER* and VOR/ILS REMOTE TRANSFER* are momentary inputs.
4.6.2.6 Marker Beacon
Pin Name
OUTER MARKER LAMP IN
MIDDLE MARKER LAMP IN
AIRWAY/INNER MARKER LAMP IN
Active high inputs used for outer/middle/inner marker lamp inputs.
GIA 63 Installation Manual
190-00303-05
Connector Pin
P601 9
P601 10
P602 16
P602 17
P604 2
P604 3
Connector Pin
P601 13
P601 14
P603 69
P602 59
P601 18
Connector Pin
P601 11
P601 12
P602 28
Connector Pin
P605 56
P605 57
P605 58
I/O
Out
Out
Out
Out
Out
Out
I/O
Out
In
Out
Out
In
I/O
In
In
In
I/O
In
In
In
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