M130 Version 1.0 Page 9 of 23
M130
8x8 Audio Matrix
The connector Pin description of the M132M microphone is as follows:
PIN Nº Name Description
1 Tx- Negative transmission RS-422
2 Tx+ Positive transmission RS-422
3 Rx- Negative reception RS-422
4 Rx+ Positive reception RS-422
5 D-GND Digital ground
6 A-GND Analog ground
7 Audio - Balanced audio negative
8 Audio + Balanced audio positive
9 DC-Output +24VDC power
Address configuration and pre-warning gong of the M132M microphone:
DIP configuration Functions
1. ON Remote microphone station 1
2. ON Remote microphone station 2
3. ON Remote microphone station 3
4. ON Remote microphone station 4
5. ON Enable the 4 rising tone Chime
6. ON Enable the 4 falling tone Chime
7. ON Enable the Push to Talk mode
8. ON or OFF Not used
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.
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