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7.5 Liebert
®
IntelliSlot
™
MultiPort 4 Card
The Liebert IntelliSlot MultiPort 4 card provides four sets of voltage-free contact closures for remote
monitoring of alarm conditions UPS operation On Battery and battery low condition. A typical
application is to allow a maximum of four computer systems to simultaneously monitor the status
(e.g., utility power failure-low battery) of a single UPS.
This card is supported in any of the three Liebert IntelliSlot bays on the Liebert
®
APM
™
.
Figure 45 Liebert IntelliSlot MultiPort 4 card pin assignment
7.6 Alber BDSi Battery Monitoring System—Optional
The matching Liebert battery cabinets allow installing an optional Alber BDSi battery monitoring
system inside the cabinet. The Alber BDSi by Liebert continuously checks all critical battery
parameters, such as cell voltage, overall string voltage, current and temperature. Automatic periodic
tests of internal resistance of each battery will verify the battery's operating integrity. Additional
capabilities include automatic internal DC resistance tests and trend analysis providing the ability to
analyze performance and aid in troubleshooting.
The Alber BDSi system is installed inside the battery cabinet as shown in Figure 35. The monitoring
system power inlet is wired to the Alber BDSi Fuse Block on the UPS (see Figure 46). The Alber
BDSI fuse block supplies 120VAC and has an 8A fuse.
If required, power can be supplied from the output terminals of the UPS, a distribution panel or
another UPS-protected source.
For details about operating the Alber system, see the Alber Monitoring System manual.
UPS
CPU
CPU
CPU
CPU
Pin
Assignment
Description
1 Low Battery
2Not Used
3Not Used
4Not Used
5Not Used
6Not Used
7 Low Battery Common
8 Utility Fail Common
9 Utility Fail