8.2.5 Parallel Cable
Shielded and double-insulated parallel cables available in lengths 5m, 10m and 15m must be interconnected in a ring
configuration between the UPS modules, as shown in Figure 8.2 below. Method: connect a module parallel cable from its
PARA1 port to the PARA2 port of another module. Follow this method to connect other parallel cables.
The parallel port J3 is provided on the front panel of the bypass module, as shown in Figure 8.3 below.
The ring configuration ensures the reliability of the parallel UPS systems. Be sure to verify the reliable cable connection before
starting up the system!
Figure 8.2 Parallel signal cables connection (Parallel system )
N O. Description
1 LBS
2 PARA 1
3 PARA 2
Figure 8.3 Location of p arallel port J 3 on bypass m odule
8 Parallel System and LBS System
142
Vertiv™ Liebert® EXM2 UPS User Manual
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