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7.2  Preparatory Procedures for Monitoring
7.2.5  Attaching communication unit and connecting cable
• connection to the RS-422/485 communication unit
RS-422 conversion unit
For details of the RS-422 conversion unit, refer to the following manual.
 GT15 RS-422 Conversion Unit User's Manual
1 Connect the RS-232 cable to the RS-232 
communication unit  on the GOT.