Maintenance - Liebert PowerSure Personal XT 450 User Manual

You can use MultiLink™ Software to allow your UPS to communicate to
your computer via your DB-9 communications port. A MultiLink Software CD is
included in the box, or you can download it from our web site at www.liebert.com.
The PowerSure™ Personal XT UPS contains a standard DB-9 receptacle located
on the rear of the UPS unit. Several signals are provided on this port and are
assigned as follows:
PIN ASSIGNMENT DESCRIPTION
1 Low Battery (open collector)
2 No connection
3 No connection
4 Remote Shutdown (5-12V); on battery operation
5 Common
6 Remote Shutdown (short to pin5); any mode operation
7 Low Battery (open emitter)
8 AC Fail (open emitter)
9 AC Fail (open collector)
The DB-9 communication port allows:
·
the status of UPS to be monitored,
·
data to be backed up,
·
computer to be switched off
The PowerSure Personal XT UPS requires very little maintenance. The batteries
are valve regulated, nonspillable, lead acid, and require that they be kept
charged to obtain their designed life. When connected to the mains supply, the
battery is continuously charged.
When storing the UPS for any length of time, it is recommended to plug in the
UPS for at least 24 hours every four to six months to ensure full recharge of the
batteries.
Battery disposal - When the battery life is expended (see alarm indications),
dispose of the discarded batteries in accordance with local environmental laws.
COMMUNICATIONS
PIN Assigment
6 7 8 9
1 2 3 4 5

MAINTENANCE

9