62 Chapter 8 Option
Liebert APM 90 Integrated Modular UPS User Manual
Electrical parameters
The electrical parameters of the LBS adapter are listed in Table 8-6.
Table 8-6
Electrical parameters of LBS adapter
Parameter
Specification
Voltage 120Vac
~
277Vac
Frequency 45Hz
~
65Hz
Current 1.5A
max.
Installation
Warning
Only qualified electrical personnel shall install the LBS adapter, as hazardous voltage may be present at the UPS output
terminals.
1. Fix the LBS adapter.
The dimensions of the LBS adapter are shown in Figure 8-9. The LBS adapter can use horizontal installation
(see Figure 8-10) or vertical installation (see Figure 8-11).
46mm
216mm
134mm
46mm
216mm
134mm
Figure 8-9
Dimensions of LBS adapter
Figure 8-10
Horizontal installation
Figure 8-11
Vertical installation
2. Make cable connection.
APM 90 UPS to APM 90 UPS
See Figure 8-12, the connection procedures are as follows:
a) Connect the power cables of the LBS adapter to the phase A, neutral and ground output of each UPS.
b) Connect the end of the LBS cable with a DB9 port to COM1 port of the LBS adapter, and connect the other
end of the LBS cable with an RJ45 port to the J4 port of the bypass module of the UPS.
c) Connect the communication cable (up to 150m) to the COM2 port of each LBS adapter.
d) Place the switch of both LBS adapters in the right position.
