GUIDE TO INSTALLATION AND OPERATION
XVP-3901 |
15
GPI / RS-422 B – GPI I/O and Metadata I/O
The rear panel connector on a 26-pin D-SUB
provides:
•
6 GPI: 4 to recall user-configurable presets
and 2 for input selection. Note that GPI6
can be reconfigured to trigger a Loudness
reset.
•
6 GPO: output tallies for the selected user
preset and the input selection.
•
RS-422 Tx/Rx differential pair: serial port
for audio metadata
GPI and GPO are both contact closure to ground,
except GPI 1 and GPI 5 which can also trigger
events on contact release.
RS-422 A – Machine Control Interface
(RJ45 socket):
RS-422 Label
Pin #
RS422-TX+
1
RS422-TX–
2
RS422-RX+
3
RS422-RX–
6
N/C
4,5,7,8
Function
I/O
Pin #
GPI 1 (USER1)
In
14
GPI 2 (USER2)
In
5
GPI 3 (USER3)
In
15
GPI 4 (USER4)
In
6
GPI 5 (INPUT 1)
In
7
GPI 6 (INPUT 2)
or (Reset Loudness)
In
17
GPO 1 (USER1)
Out
22
GPO 2 (USER2)
Out
23
GPO 3 (USER3)
Out
24
GPO 4 (USER4)
Out
25
GPO 5 (IN1 SEL.)
Out
26
GPO 6 (IN2 SEL.)
Out
18
RS422-TX1 (+)
Out
19
RS422-TX0 (-)
Out
11
RS422-RX1 (+)
In
12
RS422-RX0 (-)
In
21
GND
-
1, 2, 3, 4,
8, 9, 10,
13, 16, 20