+T
T
R
+R
+TX/R
TX/R
+T
T
R
+R
+T
T
R
+R
5232
5232
5232
Other RS-
485 Device
Last station in network
may require terminations.
First station in network
may require terminations.
RS-485 network
4000 feet (1200 m)
maximum length
4.6 RS-485 Cable
This cable is used to connect from an RJ-45 based RS-485 port on the SCADAPack 32P controller to
other RS-485 devices. The cable has a RJ-45 connector on one end and stripped wires at the other
end. A 10-foot long cable is available from Control Microsystems as part number 297234.
RJ45 Function Wire color
Connect to Chassis Shield
3 –Tx Orange
6 +Tx Blue
5 +Rx Grey
2 –Rx Brown
4 GND Black
7 Do not connect. Yellow
SCADAPack 32P Controller Hardware Manual
May 26, 2006
24