Emerson ControlWave EFM 3808 Instruction Manual page 29

Revised Mar-2011
ControlWave Express Instruction Manual (CI-ControlWave Express)
Figure 2-5. Male DB9 9-Pin Connector
Table 2-6. RS-232 COM1 and COM2 Port Connector Pin Assignment
Pin
1
2
3
4
5
6
7
8
9
Use the "null modem" cable for full-duplex (PPP protocol)
communications when connecting a ControlWave Express to a PC. (See
top part of Figure 2-6.)
Table 2-7. RS-232 COM1 (J11) Alternate Connector Pin Assignment
Pin
1
2
3
Installation
RS-232
Signal RS-232 Description
DCD Data Carrier Detect Input
RXD Receive Data Input
TXD Transmit Data Output
DTR Data Terminal Ready Output
GND Power Ground
DSR Data Set Ready Input
RTS Request to Send Output
CTS Clear to Send Input
N/A
RS-232
Signal RS-232 Description
GND Power ground
RXD Receive data input
TXD Transmit data output
2-15