Liebert Trinergy™ Cube connectivity
Page 118 Installation Manual - 10H52243IM60 - rev. 7 - 06/2020
5.2.1. SUB-D connector for parallel UPS: centralized parallel system cable connection - XP19A,
XP19B
The centralized parallel system must be connected to parallel cables for normal operation.
This interface is used for paralleling two or more UPS with each other.
It enables data exchange between UPS electronics so that the UPS can provide a common output. The
interface is SELV-isolated from UPS primary circuits.
These cables are connected between the system to pass control signals which govern system
synchronization, load sharing, battery charge current sharing (in a common battery installation), load
transfer operation, and other general control and alarm functions. These signals are necessary to ensure
correct system operation, and built-in redundancy allows the system to function should one of the cables
become disconnected.
Figure 122 - Connection of Multi-CORE System parallel signal bus cables
The maximum length of the cable used to connect the various systems in parallel is 40m; for UPS Parallel
Application see User Manual.
Warning
THIS INTERFACE AND ITS FUNCTION ARE FOR AUTHORIZED VERTIV SERVICE
TECHNICIANS ONLY. DO NOT REMOVE ANY CONNECTED CABLE FROM THIS
INTERFACE OR CONNECT ANY CABLE TO IT.
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