Mitsubishi GOT1000 Series Connection Manual page 964

23.3.5 Attaching communication unit and connecting cable
1 Attaching the communication unit
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23.3 Preparatory Procedures for Monitoring
23.3.5 Attaching communication unit and connecting cable
Cautions when attaching the communication unit and connecting the cable
Shut off all phases of the GOT power supply before attaching the communication
unit and connecting the cable.
Serial communication unit
For details on the serial communication unit, refer to the following manual:
GT15 Serial Communication Unit User's Manual
GT15-RS2, GT15-RS4, GT15-RS4-TE
1 Attach the serial communication unit to the
extension unit connector on the GOT.