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GPIO Control Room Guest Microphone Logic
Name
INPUTS
ON Command
OFF Command
TALK (to CR) Command
MUTE Command
NOT CONNECTED
OUTPUTS
ON Lamp
OFF Lamp
TALK (to CR) Lamp
MUTE Lamp
NOT CONNECTED
POWER & COMMON
Source Common
Logic Common
Logic + 5 Volt supply
Source Supply
NOT CONNECTED
Pin
11
12
13
14
15
1
2
3
4
5
7
8
9
10
6
OUTPUT
COMMON
OUT
RETURN
N/C
ØV (GND)
SOURCE
8
7
6
15
14
13
IN
IN
IN
5
4
3
© 2014 Axia Audio - Rev 1.3.1
Type
Active Low Input
Active Low Input
Active Low Input
Active Low Input
Open Collector to Logic Com-
mon Return
Open Collector to Logic Com-
mon Return
Open Collector to Logic Com-
mon Return
Open Collector to Logic Com-
mon Return
Logic Common
Internal 5 Volt return
Logic Supply, Individually
Fused
Common for all 5 inputs
OUT
OUT
OUT
OUT
5
4
3
2
1
5
4
3
2
1
12
11
10
9
IN
IN
IN
+5 V
2
1
COM
POWER
+
SOURCE
Notes
Turns channel ON
Turn channel OFF
Mutes channel outputs and
routes source audio to PVW
speakers
Mutes channel outputs
Illuminates when channel is
ON unless TALK or MUTE is
active
Illuminates when channel is
OFF
Illuminates when TALK is
active
Illuminates when MUTE is
active
Connect to ground of source
device or to Pin 8
Can be connected to Pin 7
if source is not providing
common
Can be connected to Pin 10 if
source is not providing volt-
age; active only when source
has been assigned to channel.
Connect to power supply of
source device or to Pin 9
GPIO v."ZA" 4/2009
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