3-28 B30 Bus Differential System GE Multilin
3.2 WIRING 3 HARDWARE
3
3.2.8 RS232 FACEPLATE PORT
A 9-pin RS232C serial port is located on the B30 faceplate for programming with a computer. All that is required to use this
interface is a computer running the EnerVista UR Setup software provided with the relay. Cabling for the RS232 port is
shown in the following figure for both 9-pin and 25-pin connectors.
The baud rate for this port is fixed at 19200 bps.
Figure 3–25: RS232 FACEPLATE PORT CONNECTION
3.2.9 CPU COMMUNICATION PORTS
a) OVERVIEW
In addition to the faceplate RS232 port, the B30 provides a rear RS485 communication port.
The CPU modules do not require a surge ground connection.
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