11
Remote Alarm Option
The DC-UPS Remote Alarm Option provides relay contacts to remotely monitor the status
of the unit. These alarms will indicate either an AC Fail or a Battery Test Fail condition.
Both normally open and normally closed contacts are provided to suite the user’s external
monitoring circuitry. The alarm contacts have a 2 Amp rating. The NO and NC contacts will
change state when an alarm condition occurs.
The alarm contacts are accessible via an RJ45 connector on the side panel of the DC-UPS.
The Alarm Contact connector pinouts are shown in Figure 2
Pin #
Function
Comment
1
Battery Test Fail Common
2
Battery Test Fail NC
Battery OK
3
Battery Test NO
Battery has failed
4
No connection
5
No connection
6
AC Fail NC
AC Failure has occurred
7
AC FAIL NO
Operating Normally
8
AC Fail Common
Figure 2
Power Management Package
SEI’s Power Management Package (PMP) for the SEI-DC-UPS provides a variety of
functions necessary to monitor and control output power to DC powered devices, as well
as maximize the efficiency and reliability of the power systems and battery backup.
Ethernet communication is accessed via a panel mounted standard RJ45 connector. Two
Ethernet interfaces are provided to monitor and control the DC-UPS. A web page
interface that can be viewed with any Internet browser is available for easy system status
checks and fast system configuration tasks. An SNMP interface provides the ability to
continuously monitor the DC-UPS status with a Network Management System (NMS)
and to receive instantaneous notification of DC UPS status changes and alarms via
SNMP traps.
