HP (Hewlett-Packard) R5500 Power Supply User Manual


 
Installation 19
Switching on the UPS battery circuit breaker
Connecting the serial communications port
CAUTION: Use only the computer interface cable supplied with the UPS to connect the
communications port to the host computer.
CAUTION: Using a USB to serial converter cable will damage the UPS.
IMPORTANT: Power management software requires the communications port to be
appropriately cabled to the host computer.