Belkin Power Supply User Manual page 15

WARNING
Belkin
specially design, Do not use any other CABLES to
connect UPS.
When select USB interface as communication port,
only Windows 95/98/NT/2000/Me/XP/2003 workable.
When disconnection is cause by using the interface
switch of USB and RS232 directly at the back of the
UPS, then please replug the USB or RS232 cable
again for the new connection.
Belkin Power Management Software
Power Management
7
Software cable is