7
Because the CommSure merges the signals from the two UPS’s, a LOW
BATTERY alarm signal is not sent to the computer until one UPS has been
depleted and the other UPS has reached low battery. Likewise, an AC FAIL will
not occur unless both UPS’s are depleted.
The CommSure will operate normally with only one UPS connected to either port,
but it will assume that the absent UPS is a failed or intentionally shut off UPS.
The CommSure will ensure that your computer operates as long as power is
available from one UPS. If power is not available from either UPS, CommSure
will ensure that the proper shutdown signal is sent to the computer.
Attention: Although the CommSure is designed to be trouble-free, proper
installation is of utmost importance. If the CommSure is not working properly
after installation, please review the diagrams on the previous pages. Make sure
the wires are not cross-connected as shown below:
UPS #1
UPS #2
SiteNet CommSure
AC
AC
AC
AC
Comms
Comms
Comms
to computer
to computer
to computer
UPS #1
UPS #2
SiteNet CommSure
AC
AC
AC
AC
Comms
Comms
Comms
to computer
to computer
to computer
