HMS Netbiter EasyConnect EC150 User Manual page 20

Digital Inputs (DI)
Netbiter EasyConnect EC250 features 2 digital inputs with the following specifications:
• Low: 0-1 VDC
• High: 10-24 VDC
RS-485 Interface
RS-485 is connected via the following pins:
• Pin 13: RS-485 Line B
• Pin 14: RS-485 Line A
• Pin 17: Common
RS-422 Interface
RS-422 is connected via the following pins:
• Pin 13: RS-422 Transmit B
• Pin 14: RS-422 Transmit A
• Pin 15: RS-422 Receive B
• Pin 16: RS-422 Receive A
• Pin 17: Common
RS-232 Interface
RS-232 is connected via the following pins:
• Pin 17: Common
• Pin 18: RS-232 Transmit (Output)
• Pin 19: RS-232 Receive (Input)
Note that it is not possible to use more than one of these inter-
faces simultaneously.
Note that when connecting Modbus devices via RS-485, RS-422 or RS-232 on the 12-pin terminal
block, it will not be possible to simultaneously connect Modbus devices via RS-232 on the D-SUB
connector. It will, however, still be possible to connect a GPS device to the D-SUB connector.
Netbiter EasyConnect
Doc.Rev. 2.10
Connections 20
RS-485
RS-422
RS-232
Doc.ID. HMSI-168-92