Emerson Process Management Bristol ControlWave ExpressPAC - Manual (Page 36)

ControlWave ExpressPAC Instruction Manual (CI-ControlWave EPAC)
2-22 Installation Revised Mar-2011
Note: A factory-installed wiring harness connects J4 (COM1) to the
circular 5-pin Local Port connector at the bottom of the enclosure
cover.
Table 2-7. RS-232 COM1 (J4) and COM2 (TB3) Port Connector Pin Assignment
Pin
RS-232
Signal
RS-232 Description Local Port (RS-232 Pin#)
1 DCD Data Carrier Detect Input 1 (green wire)
2 RXD Receive Data Input 2 (red wire)
3 TXD Transmit Data Output 7 (white wire)
4 DTR Data Terminal Ready Output 4 (brown wire – Pin 4 connected to pin 4 at TB5
of CPU = external power for local port
communication cable)
5 GND Power Ground 6 (black wire)
6 DSR Data Set Ready Input
7 RTS Request to Send Output RTS connected to CTS at J4 of CPU for local
port communication cable
8 CTS Clear to Send Input RTS connected to CTS at J4 of CPU for local
port communication cable
9 N/A
Table 2-8. RS-232 COM1 (J11) Alternate Connector Pin Assignment
Pin
RS-232
Signal RS-232 Description
1 GND Power ground
2 RXD Receive data input
3 TXD Transmit data output
Use the “null modem” cable for full-duplex (PPP protocol)
communications when connecting a ControlWave ExpressPAC to a PC.
(See top part of Figure 2-11.)