Installation
Liebert
®
APS
™
34
2.5.4 Connecting External Battery Cabinet
Up to four external battery cabinets may be connected to the Liebert APS to provide longer battery
run times.
An external battery cabinet contains a standard battery cable and a communication cable, each
1meter (39in) long. They are used to connect UPS and the external battery cabinet. Optional cables of
3 and 5 meters can be provided if the battery cabinets must be located some distance from the UPS
cabinet.
To connect an external battery cabinet:
1. Connect one end of the battery cable to the external battery connector on the rear of the UPS.
2. Connect the other end to the corresponding port on the rear of the external battery cabinet, as
shown in Figure 42 and Figure 43.
3. Install and tighten a grounding screw between the EBC battery cable and the UPS frame.
4. Insert a Liebert IntelliSlot EBC card into any intelligent card slot on the rear of UPS. Connect
one end of the signal cable to the Liebert IntelliSlot EBC card and the other end to the Liebert
IntelliSlot EBC card on the rear of the external battery cabinet, as shown in Figure 42 and
Figure 43.
Figure 42 Connecting external battery cabinet to a transformer-free UPS
Communication
Cable
Battery
Cable
Battery CabinetLiebert APS
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