Rtu-To-Rtu Connection; Rtu-To-Rtu Asynchronous Communications Connection - Motorola IRRInet-M DC Owner's Manual

RTU-to-RTU Connection

RTU-to-RTU Asynchronous Communications Connection

This section provides data on the cable (not supplied) recommended for the RTU-to-RTU
RS232/RS485 asynchronous interconnection (refer to Figure 22 and Figure 23). The following
table defines the RTU port for this connection type.
Port No. STS Definition
1A RS485 RTU-to-RTU
1B RS232 RTU-to-RTU
2 RS232 RTU-to-RTU
When the connector is facing upwards, the left-hand pin is Pin No. 1, and
the right-hand pin is Pin No. 8.
Figure 22 RTU-to-RTU RS232 Asynchronous Communications Cable
33
RJ45
Connector
J1
(RJ45)
1
Tx DATA
2
Rx DATA
3
CTS
4
GND
5
DCD
6
RTS
7
+12V NOT CONNECTED
8
DTR
Appendix A: Cables and Adapters
J2
(RJ45)
1
Tx DATA
2
Rx DATA
3
CTS
4
GND
5
DCD
6
RTS
7
NOT +12V
CONNECTED
8
DTR