Liebert SiteNet CommSure User Manual

2

This manual contains important safety instructions that should be followed during
the installation and maintenance of this product. Please read this manual
thoroughly before attempting to install or operate this product.

This equipment can be installed and operated by individuals without previous
training.

The Sitenet CommSure can be used for both 120VAC and 230VAC supply
voltages/loads.

For UPS installation requirements, refer to user manual supplied with the UPS.
This equipment is designed for Commercial/Industrial use only. Liebert
Corporation neither recommends nor knowingly sells this product for use in
critical life support applications.

To reduce the risk of electric shock, do not remove the covers, as there are no
user-serviceable parts inside. For service, contact a qualified technician. Follow
all warnings and instructions marked on the CommSure.

To prevent the risk of fire or electric shock, install the CommSure in a
temperature and humidity controlled room, free of conductive contaminants.

CAUTION: Although your CommSure has been designed and manufactured to
assure personal safety, improper use can result in electrical shock or fire. To
ensure safety, please observe the following rules:

• Unplug your CommSure before cleaning. Do not use liquid or aerosol

cleaners. A dry cloth is recommended to remove dust from the surface of
your modules.

• Do not install or operate in or near water.

• Do not place on an unstable cart, stand, or table.

• Do not place under direct sunlight or close to heat emitting sources.

• Do not place power cords in any area where it may get damaged by heavy

objects.

ATTENTION: Unplug your CommSure from the receptacles and contact qualified
service personnel if:

• any power cord or plug is damaged.

• liquid has been spilled on the modules.

• the fuse/circuit breakers blows/trip frequently.

• the installation does not operate correctly even when the user follows the

operating instructions.

Important Safety Instructions

3

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