Peavey MediaMatrix Nion - Serial communications

Appendix B - Connector ports
80 Version 1.6.4b.1 June 11, 2012
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Serial communications
NION supports serial communications via two female DB-9 connectors on the rear of the unit.
The first connector supports RS-232 and the second supports both RS-422 full duplex and
RS-485 half-duplex.
Follow the pinout drawings and charts below for terminating the different protocols.
Note: Only one protocol can be used on a particular port at any one time.
RS-232 serial port
Pin
Function
1
Not used
2
TX data
3
RX data
4
Not used
5
Ground
6
Not used
7
CTS
8
RTS
9
Not used
Notes:
 Transmit (TX) and Receive (RX) are from the point of view of the MediaMatrix device.
Connect them to the opposite port of the remote unit.
 Pins 7 and 8 are not required for normal operation.