Grass Valley AMX-3981 2014 - Manual (Page 15)

GUIDE TO INSTALLATION AND OPERATION
AMX-3981 | 9
 AMX-3981-110-3DRP-F
This rear panel carries three GPIO and RS-422 on a 15-pin D-SUB connector
and LTC on a separate BNC connector. The pinout of the 15-pin D-SUB is as
follows:
Function Pin #
GPIO USER1 3
GPIO USER2 8
GPIO USER3 10
RS422-RX1-1 1
RS422-RX1-0 6
RS422-TX2-1 2
RS422-TX2-0 7
GND
5,11,12,
14,15
NC 4, 9, 13