Serial Communications - Peavey MediaMatrix NION Hardware Manual

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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 N.C.
2 RX data
3 TX data
4 N.C.
5 Ground
6 N.C.
7 N.C.
8 N.C.
9 N.C.
Note: 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.
September 30, 2010 Version 1.6.1.0
NION Hardware Manual
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