Optimus M130 Installation And Operating Instructions Manual page 32

The connector Pin description of the M132M microphone is as follows:
PIN Nº
Address configuration and pre-warning gong of the M132M microphone:
DIP configuration
8. ON or OFF
9. Volume control for the M132M.
Adjusts the audio level for M132M microphones, the range is from 0 dB to +10 dB.
10. Treble control for M132M.
Adjusts the treble of M132M, the range is from -12 dB to +12 dB, 0 dB being the midpoint.
11. Bass control for M132M.
Adjusts the bass of M132M, the range is from -12 dB to +12 dB, 0 dB being the midpoint.
12. Timer trigger terminal.
You can connect up to eight dry contact timer to this terminal. These contacts can enable the
auxiliary audio input 8. When the contact terminal is activated, the auxiliary input 8 has priority
over all others.
The Led display will show "T", indicating that a timer is in progress.
M130 Version 1.0
Name
1 Tx-
2 Tx+
3 Rx-
4 Rx+
5 D-GND
6 A-GND
7 Audio -
8 Audio +
9 DC-Output
1. ON
2. ON
3. ON
4. ON
5. ON Enable the 4 rising tone Chime
6. ON Enable the 4 falling tone Chime
7. ON
M130
Description
Negative transmission RS-422
Positive transmission RS-422
Negative reception RS-422
Positive reception RS-422
Digital ground
Analog ground
Balanced audio negative
Balanced audio positive
+24VDC power
Functions
Remote microphone station 1
Remote microphone station 2
Remote microphone station 3
Remote microphone station 4
Enable the Push to Talk mode
Not used
8x8 Audio Matrix
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