AC Power Systems for Business Critical Continuity Load Bus Sync™ Extender/Adapter for Dual Bus UPS Installation Manual 120V-277VAC, 45-65Hz
TABLE OF CONTENTS 1.0 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 2.0 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 2.1 Liebert NX UPS to Liebert NX UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.2 Liebert NX UPS to Non-Liebert NX UPS . . . . . . . . . . . . . . . . . . . . . . .
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General 1.0 GENERAL Liebert’s Load Bus Sync (LBS) Extender/Adapter for Dual Bus UPS is designed to extend the LBS function, up to 150m (492 ft.) between Liebert NX series uninterruptible power system (UPS) modules of a dual bus system (DBS). The adapter also enables a Liebert NX UPS to synchronize with other UPS models. Figure 1 LBS Adapter dimensions 8.5” (216.2mm) 1.8” (45.5mm) DY3-4ZPW POWER ON COM1 COM2 SWITCH LED1 Figure 2 5.25” (133.
Installation 2.0 INSTALLATION 2.1 Liebert NX UPS to Liebert NX UPS ! WARNING Installation by qualified electrical personnel only—hazardous voltage may be present at the UPS output connectors. 1. Connect the power cables of the adapter to the Phase A, Neutral and Ground output of each UPS. 2. Connect the LBS cable to COM1 of each LBS Signal Adapter. 3. Connect the other end of each LBS cable to X4 on the parallel board (UHW241M3) in the NX UPS. 4. Connect the communication cable (up to 492 ft.
Installation 2.2 Liebert NX UPS to Non-Liebert NX UPS WARNING ! Installation by qualified electrical personnel only—hazardous voltage may be present at the UPS output connectors. 1. 2. 3. 4. Connect the power cables of the adapter to the Phase A, Neutral and Ground Output of each UPS. Connect the LBS cable to COM1 of the LBS Signal Adapter connected to the Liebert NX. Connect the other end of the LBS cable to X4 on the parallel board (UHW241M3) in the NX UPS.
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