GE Grid Solutions Multilin 9450 - 5.2 RS232 Connection (Port 1)

CHAPTER 5: COMMUNICATION WIRING RS232 CONNECTION (PORT 1)
EPM 9450/9650 ADVANCED POWER QUALITY METERING SYSTEM – INSTRUCTION MANUAL 5–5
5.2 RS232 Connection (Port 1)
• Use Port 1 for RS232 communication. Set the selector switch beneath the port to
RS232.
• Insert one end of an RS232 extension cable into the EPM 9450/9650 meter’s 9-pin
female serial port. Insert the opposite end into a port on the computer.
• The RS232 standard limits the cable length to 50 feet (15.2 meters).
• The RS232 Port is configured as Data Communications Equipment (DCE).
Figure 5-4: RS232/RS485 Port Detail
RS232 Port
Pin #2=Transmit
Pin #3=Receive
Pin #5=Ground
5 4 3 2 1
9 8 7 6
Pins:
230ORT
63
230ORT
0IN4RANSMIT
0IN2ECEIVE
0IN'ROUND
0INS

