AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual viiPrefaceManual InformationPurposeThis manual details the features, installation, operation, maintenance,and specifications of the NEO™ AVM-3901-B, -C, -B4, and -C4Multiplexer/Synchronizers.AudienceThis manual is written for technicians and operators responsible forthe installation, setup, maintenance, and operation of the NEOAVM-3901-B, -C, -B4, and -C4 Multiplexer/Synchronizers.Revision HistoryTable P-1. Revision HistoryEdition Date Revision HistoryA January 2003 Initial releaseB June 2005 Revision of product codes and templateupdates