Liebert Extender/Adapter - Manual (Page 6)

Installation
2
2.0 I
NSTALLATION
2.1 Liebert NX UPS to Liebert NX UPS
1. Connect the power cables of the adapter to the Phase A, Neutral and Ground output of each UPS.
2. Connect the LBS cable to COM1 of each LBS Signal Adapter.
3. Connect the other end of each LBS cable to X4 on the parallel board (UHW241M3) in the
NX UPS.
4. Connect the communication cable (up to 492 ft. [150m]) to the COM2 interface of each LBS Signal
Adapter.
5. The switch of both LBS signal adapters should be in the right position (see Figure 4).
Figure 4 Connecting a Liebert NX to a Liebert NX
!
WARNING
Installation by qualified electrical personnel only—hazardous voltage may be present at the
UPS output connectors.
COM1 COM1 COM2 COM2 SWITCH SWITCH Power ON
LED1
Power ON
LED1
Power Cable
Connect to NX UPS
LBS
Cable
Communication Cable
up to 492 ft. (150m)
Power Cable
Connect to NX UPS
LBS
Cable