
5-6
J1
(RJ45)
J2
(RJ45)
Tx_DATA
Rx_DATA
CTS
GND
DCD
RTS
+12V
DTR
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
Tx_DATA
Rx_DATA
CTS
GND
DCD
RTS
+12V
DTR
8
NOT CONNECTED
NOT CONNECTED
RJ45
Connector
Pin No. 1
Pin No. 8
Figure
5-5 RTU-to-RTU RS-232 Asynchronous Communications Cable
5.3.3
RTU-to-RTU Synchronous Communications Connection
(via port 1B)
This section provides data on the cable recommended for RTU-to- RTU RS-232
synchronous communications via RTU port 1B (not available) (See Figure 5-6). The
cable should be connected to the CPU as follows
:
CPU Port No. Used with Piggyback Board
Toolbox Definition
1B
–
RS-232 Synchronous RTU-to-RTU
(MDLC) Full Duplex or Half Duplex
StockCheck.com