Control Microsystems SCADAPack 350 - RS-232 Cables; Figure 13: RS-232 DTE to RS-232 DCE with Handshaking

10.1.3.3 DTE to DCE with Handshaking
DCE devices require different wiring. The handshaking lines must be connected in most cases. Note
that many DCE devices are half-duplex. Select half-duplex operation with these devices. The
diagram below shows common connection of a SCADAPack 350 with a DCE device requiring
handshaking lines.
RS-232 COM port (DTE)
8 Pin connector
DCE
5
6
3
4
8
7
1
2
DCD
RxD
TxD
DT
R
GND
RT
S
CT
S
+5V
DCD
RxD
TxD
DTR
GND
RTS
CTS
See devi ce
specification
s
for pin number
s
Figure 16: RS-232 DTE to RS-232 DCE With Handshaking
10.1.4 RS-232 Cables
10.1.4.1 RJ-45 to DE-9S DTE
This cable is used to connect from an RJ-45 based RS-232 port on the SCADAPack 350 controller to
DE-9P connector on a DTE such as a PC. A 10 ft. long cable is available from Control Microsystems
as part number 297217.
RJ-45
8 Pins
SCADAPack
DTE Function
DE9S DTE
Function
DE9S
Shield connects to shell
6 TxD RxD 2
5 RxD TxD 3
4 GND GND 5
1, 2, 3, 7 and 8
are not connected
at this end.
Wires not connected at
this end.
10.1.4.2 RJ-45 to SCADAPack Vision
This cable is used to connect from COM3 (RJ-45 based RS-232) port on the SCADAPack 350
controller to DE-9P connector on a SCADAPack Vision. A 5-ft. long cable is available from Control
Microsystems as part number 297237.
SCADAPack 350 Hardware Manual
February 14, 2007
36