Instruction/ maintenance manual of the product Extender/Adapter Liebert
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AC Pow er Sy ste ms fo r Business Critical Continuity L oad Bus Sync™ Ex te nde r/Adapt er for Dual Bu s UPS Install atio n Manu al 120V-277V AC , 45-65Hz.
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i T ABLE OF CONTENTS 1.0 G ENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 I NST ALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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General 1 1.0 G ENERAL Liebert’s Load Bus Sync (L BS) Extender/ Adapter fo r Dual Bus UPS is designed to extend the LBS function, up to 150m (492 ft.) between Liebert NX series uninterru ptib le power system (UPS) modules of a dual bus s ystem (DBS).
Installation 2 2.0 I NST ALLATION 2.1 Liebert NX UPS to Liebert NX UPS 1. Connect the power cables of the adapter to the Phase A, Neutral and Ground output of each UPS. 2. Connect the LBS ca ble to COM1 of each LBS Signal Adapter. 3. Connect the other end of each LBS cable to X4 on the pa rallel board (UHW241M3) in the NX UPS.
Installation 3 2.2 Liebert NX UPS to Non-Liebert NX UPS 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 the LBS Signal Adapter connected to the Liebert NX. 3. Connect the other end of the LBS cable to X4 on the parallel board (UHW241M3) in the NX UPS.
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