88 Chapter 8 Option
NX UPS Single Module And Parallel System 250kVA ~ 800kVA User Manual
3) Connect the communication cable (up to 150m) to the COM2 port of each LBS adapter.
4) Place the switch of the LBS adapter connected to the NX UPS in the right position, and place the switch of the LBS
adapter connected to the non-NX UPS in the left position.
Power ON
COM1
COM2
SWITCH
LED1
Power ON
COM1
COM2
SWITCH
LED1
Power cable
Connect to APM 90 UPS LBS
cable
Communication cable up to 150m
Power cable
Connect to non-APM 90 UPS
Connect to NX UPS
Connect to NX UPS
Figure 8-13 Connection between two LBS adapters (NX UPS to non-NX UPS)