5 connection ports and switchers, 1 rs-232 – Zigen AX-88 Audio User Manual
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Matrix Switching System—User Manual
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6.0.5 Connection ports and Switchers
The audio matrix provides standard RS-232 and RS-485 serial communication ports.
Beside the front panel for key switching operation, you can also use the RS-232 or
RS-485 serial communication port to carry out remote operation.
6.0.5.1 RS-232
The RS-232 Pin functions are described as below:
Pin No.
Abbreviation
Description
1
N/u
Null
2
TXD
Send
3
RXD
Receive
4
N/u
Null
5
GND
Ground
6
N/u
Null
7
N/u
Null
8
N/u
Null
9
N/u
Null
Figure 6-7 (a)