User manual

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7.2.1 RS-232 protocol
Pin
2 TxD Gesendete Daten Transmitted data
3 RxD Empfangene Daten Received data
5 GND Masse Ground
Table 6: RS-232 interface pin assignment
7.2.2 Dry contacts
Pin description
Floating outputs (pins 1 & 7, 8 & 9) *
Floating input (pins 4 & 5) *
* Max. voltage / current at pins 1, 4, 5, 7, 8 and 9 is 30V DC, 10mA