Emerson 115-120 Manuel D’Utilisation

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

™

.

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.

1

Low Battery

2

Not  Used

3

Not  Used

4

Not  Used

5

Not  Used

6

Not  Used

7

Low Battery Common

8

Utility Fail Common

9

Utility Fail