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Congratulations on the purchase of the Liebert SiteNet® CommSure™.
The CommSure is a communications interface that permits two Liebert UPSs to
function together as a redundant, high availability power system. Computers with
two or more power supplies are required. Without the CommSure, false
communications signals would occur, possibly causing unexpected shutdown of
computer equipment. However, with a CommSure installed, computers will
continue to operate as long as power is available from one UPS or both. If power
is unavailable from either UPS, the SiteNet CommSure, using standard Liebert
software, will automatically shut down your computer(s) in an orderly manner.
The CommSure may be rack mounted or used on a desktop.
Requirements:
•
Computer(s) with dual power supplies
•
Two (2) UPSs, each of which can support the entire load
•
SiteNet MultiLink or SiteNet 1 Cable (not included)
Included with the SiteNet CommSure are:
•
Two (2) AC input cords with NEMA 5-15P plugs for 120V UPS
•
Two (2) AC input cords with IEC320-2-2/E plugs for 230V UPS
•
Two (2) DB-9 communication cables
•
Two (2) brackets for mounting in 19” racks
•
Four (4) rubber feet
•
This user’s manual and other literature
If any of the above are not included, please call the appropriate number listed on
the last page of this manual.
Optional equipment for the SiteNet Commsure include:
•
Two (2) brackets for mounting in 24” racks
Introduction
