May 2014 – TD 293 OPERATING MANUAL – SmartGuard
Page 85
Appendix 1 - 11 Digital 3 – 4 connection plug for digital I/O, digital sensors
Figure A 12 9-pin D sub connection plug. Refer Table A 17 for signal wiring.
Table A 17 Signal wiring 9pin D sub connection plug for digital sensor.
Wiring
Signal
Description
1
Digital in 3 +
0-10V input, max 6 kHz
2
Digital out 3 +
0/10V output. Max 1A. Adds to Sensor PWR total.
3
Not connected
4
Digital out 4 +
0/10V output. Max 1A. Adds to Sensor PWR total
5
Digital in 4 -
Ref pin 9
6
Digital in 3 -
Ref pin 1
7
Digital out 3 -
Ref pin 2
8
Digital out 4 -
Ref pin 4
9
Digital in 4 +
Differential. Opto insulated. max 1 kHz
Digital in 3 schematics
Digital in 4 schematics