Axia Element Installation & User Manual page 38

GPIO Telephone Hybrid Logic
Name
INPUTS
ON Command
OFF Command
PREVIEW Command
RESET Command
READY Command
OUTPUTS
ON Lamp
OFF Lamp
PREVIEW Lamp
START Pulse
STOP Pulse
POWER & COMMAND
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
©2008 Axia Audio — Rev. 3.0
Type
Active Low Input
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
Open Collector to Logic Com-
mon Return
Logic Common
Internal 5 Volt return
Logic Supply, Individually
Fused
Common for all 5 inputs
Notes
Turns channel ON
Turns channel OFF
Turns preview ON
Turns channel off while not
sending a STOP pulse
Illuminates OFF lamp to indi-
cate source's readiness
Illuminates when channel is
ON
Illuminates when channel is
OFF
Illuminates when PREVIEW
is ON
A 100 mS PULSE is sent when
channel is first turned ON or
when PVW is first selected
(if "PVW answers" option is
selected).
A 100 mS PULSE sent when
channel is turned OFF.
Connect to ground of source
device or to Pin 8
Can be connected to Pin 7 if
source is not providing com-
mon
Can be connected to Pin 10
if source is not providing
voltage; active only when
source has been assigned to
channel.
Connect to power supply of
source device or to Pin 9
GPIO v."Z" 12/2007