10.6
SEL-734 Meter Instruction Manual Date Code 20090730
Communications
Port Connector and Communications Cables
SEL-734 to PC
The following cable diagrams show several types of EIA-232 serial
communications cables that connect the SEL-734 to other devices. These and
other cables are available from SEL. Contact the factory for more information.
Figure 10.4 Cables for Connecting the SEL-734 to a Computer
SEL-734 9-Pin DTE* Device
9-Pin DTE* Device
Cable C234A/R
9-PIN MALE
"D" SUB CONNECTOR
9-PIN FEMALE
"D" SUB CONNECTOR
RXD
TXD
GND
CTS
TXD
RXD
GND
CTS
RTS
DCD
DTR
DSR
2
3
5
8
3
2
5
8
7
1
4
6
ORANGE
RED
SHIELD
BLACK
SEL-734 25-Pin DTE* Device
Cable C227A/R
9-PIN MALE
"D" SUB CONNECTOR
25-PIN MALE
"D" SUB CONNECTOR
GND
TXD
RXD
GND
CTS
GND
RXD
TXD
GND
RTS
CTS
DSR
DCD
DTR
5
3
2
9
8
7
3
2
1
4
5
6
8
20
BLACK
RED
ORANGE
SHIELD
WHITE
SEL-734
Cable C287/R
9-PIN MALE
"D" SUB CONNECTOR
9-PIN FEMALE
"D" SUB CONNECTOR
RXD
TXD
GND
RTS
CTS
TXD
RXD
GND
CTS
RTS
DTR
DSR
2
3
5
7
8
3
2
5
8
7
4
6
ORANGE
RED
BLUE/SHIELD
GREEN
WHITE
* DTE = Data Terminal Equipment (Computer, Terminal, etc.)
Courtesy of NationalSwitchgear.com