Introduction 5
Name
Description
Rx, Tx
RS-232 receiving and sending port.
Reserved. The software does not support at present.
NO1C1, NO2C2, NO3C3
3 groups of alarm output port.
Reserved. The software does not support at present.
R+, R-, T+, T-
RS-422 port.
Reserved. The software does not support at present.
1.3.2 Side Panel Port
There are three keys on the side panel, including mute key, volume up key and volume down
key.