Major Components
8
3.5 Parallel Communication Port
The Liebert GXT2-PP20KRT208 parallel POD has three 15-pin parallel communication ports on the
upper right of the parallel POD. Several signals are provided on this port to communicate with each
UPS. Use the parallel communication cables for the connection between the parallel POD and each
UPS. When the UPS is powered on, it enters parallel mode automatically. Refer to 5.0 - Installation
for the cable connection procedures
NOTICE
Do not disconnect the parallel communication cable while the parallel system is operating and
powering the connected load. This may cause load-drop and damage the UPS or connected
equipment.
If the parallel communication cable is disconnected or the connection is dropped during
parallel operation, the UPS will shut down immediately.
If the parallel communication cable is not connected to the UPS, the UPS will not enter
parallel mode, even if the parallel power cable is connected. Operating without the parallel
communication cable may result in damage to the UPS.
3.6 Optional Power Distribution
Additional power distribution options are available to provide the benefit of output receptacle conve-
nience. See 5.4 - Add an Output Power Distribution Module—Optional for installation steps.
Figure 5 Optional output distribution modules
NOTE
The Liebert GXT2-PP20KRT208 distribution POD options are different than the distribution
PODs used with individual Liebert GXT2-10000RT208 UPSs. Each POD type has different
connectors and are not interchangeable.
If a Liebert GXT2-10000RT208 UPS that is to be connected to the parallel POD has a
distribution POD option, then the distribution POD must be removed from the UPS to connect
the parallel power cable assembly to the UPS.
T20A 125V~
PUSH TO
RESTAR
T
OUTPUT BREAKER 20A 250V~/T
OUTPUT BREAKER 20A 250V~/T
OUTPUT L1
OUTPUT L2
PD-201
T20A 125V~
PUSH TO
RESTAR
T
OUTPUT BREAKER 20A 250V~/T
OUTPUT BREAKER 20A 250V~/T
PD-202
Power Distribution Option
PD-201
Power Distribution Option
(with internal connector shown)
PD-202
