APC 990-4053 Power Supply User Manual


 
External Connection
990-4053
Installation Guide APC Silcon 480kW 400V UPS 19
4.5 Communication Interface Board
The 3-port ComInterface is used to establish an interaction between UPS and e.g. a computer
system. Main purpose: To ensure a controlled computer shut-down in case of a mains supply
failure.
4.5.1 Connections
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