May 2014 – TD 293 OPERATING MANUAL – SmartGuard
Page 73
Appendix 1 - 2 COM1 connection plug for RS-232/422 sensor and controlled
power supply for sensor
Figure A 3 4-pin M12 and 9-pin D sub connection plug. Refer Table A 2 - Table A 4 for signal wiring.
Table A 2 Signal wiring 4pin M12 connection plug for sensor and sensor power.
Wiring
Signal
Description
1
Sensor PWR out
Controlled power for sensor.
10V, Max 2 A total for all Sensor PWR
2
Sensor PWR out
3
Sensor power GND
Not to be physically grounded
4
Sensor power GND
5
Not connected
Table A 3 Signal wiring 9pin D sub connection plug for, RS-232 sensor.
Wiring
Signal, RS-232
Description
1
(do not use)
2
Rx
Serial input to SmartGuard
3
Tx
Serial output from SmartGuard
4
(do not use)
5
Sensor power GND
Internally connected to M12 pin 3,4. Not to be physically
grounded
6
Not connected
7
Not connected
8
Not connected
9
Sensor PWR out
Internally connected to M12 pin1,2 Max 0.5A
