User manual

Connections 11
Doc: HMSI-168-92 Rev: 3.00Netbiter EasyConnect Gateway User Manual
2.3 Netbiter EC250
2.3.1 Terminal Block (12-pin)
2.3.2 D-sub Connector
The9‐pinD‐subconnectorprovidesconnectivityforModbusRTUslaveunitsviaRS‐232,
andforconnectingaGPSreceiver.
2.3.3 Ethernet Connector
TheRJ‐45socketprovidesEthernetnetworkconnection.ItalsosupportsModbusTCPvia
Ethernet,whichcanbeusedatthesametimeasModbusRTUunitsonanotherinterface.
Pin Label Function Note
24 V+
Power 9–24 VDC
23 GND PE ground
22 DI:COM Digital input common
21 DI:DI 1 Digital input #1 Low = 0–1 VDC, High = 10–24 VDC
20 DI:DI 2 Digital input #2 Low = 0–1 VDC, High = 10–24 VDC
19 RS-232:RX RS-232 Receive
18 RS-232:TX RS-232 Transmit
17 COM Serial interface common
16 RS-422:RD(A) RS-422 Receive A
15 RS-422:RD(B) RS-422 Receive B
14 RS-485:TD(A)
RS-422
RS-485 Line A
RS-422 Transmit A
13 RS-485:TD(B)
RS-422
RS-485 Line B
RS-422 Transmit B
Pin Function
1 CD (Carrier Detect)
2 Rx (Receive)
3 Tx (Transmit)
4 DTR (Data Terminal Ready)
5GND
6 DSR (Data Set Ready)
7 RTS (Request To Send)
8 CTS (Clear To Send)
9 RI (Ring Indicator)
Pin Function
1TD+
2TD-
3RD+
4, 5, 7, 8 Termination
6RD-
18