INFICON T-Guard Leak Detection Sensor - Manual (Page 12)

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3.2 Interfaces
The T-Guard™ Leak Detection Sensor has 5 interfaces for control and information
exchange.
Power Connector
Only two of the four pins are used for the power supply. The plus pole is marked with
„1+“, the minus pole is marked with „2-“.
Fuse
The fuse reacts to reverse polarity and a current exceeding 7 A.
Fig. 4-3
Item Description Item Description
1 Power supply connector 5 PLC-interface
2 Fuse 6 RS232 PC-interface
3 Interface for the control unit 7 Analog Recorder Output
4 I•Stick -connector 8 Status LEDs