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1.0 GENERAL
Liebert’s Load Bus Sync (LBS) Extender/Adapter for Dual Bus UPS is designed to extend the LBS
function, up to 150m (492 ft.) between Liebert NX series uninterruptible power system (UPS) modules
of a dual bus system (DBS). The adapter also enables a Liebert NX UPS to synchronize with other
UPS models.
Figure 1 LBS Adapter dimensions
Figure 2 Horizontal installation
Figure 3 Vertical installation
8.5”
(216.2mm)
5.25”
(133.5mm)
1.8”
(45.5mm)
DY3-4ZPW
COM1
COM2
SWITCH
LED1
POWER ON
DY3-4ZPW
POWER ON
SWITCH
LED1
COM2
COM1