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CHAPTER 3: INSTALLATION WIRING

L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-29

Figure 3-26: RTD connections

3.3.8 RS232 port

A nine-pin RS232C serial port is located on the front panel 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 can be set, with a default of 115200 bps.

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GE L90 Specifications

General