47
Figure 4.2.c 4 units in parallel
All the units must be set for the same operation mode and must have a different UPS number.
CAUTION !!! You must never set the operation modes of parallel connected UPS units to
“ONLINE”, otherwise serious damage may occur in UPSs.
2 units in parallel if port2 jumper is
Parallel
Port 1
Parallel
Port 2
Parallel
Port 1
Parallel
Port 2
DS300H Series Parallel UPS Signal Cable
Figure 4.2.b
3 units in
parallel
Parallel
Port 1
Parallel
Parallel
Parallel
Port 2
Parallel
Port 1
Parallel
Parallel
Port 1
Parallel
Parallel
Parallel
Parallel
Port 1
Parallel
Port 2
Parallel
Port 1
Parallel
Port 2