. T1-Related Telecommunications Specifications . ANSI Tl.102- Digital Hierarchy Electrical Interface . ANSI Tl.231- Digital Hierarchy- Layer l in Service Performance Monitoring . ANSI Tl.403- Network and Customer Installation Interface- DSl Electrical Interface * G.736 Characteristics of a synchronous digital multiplex equipment operating at 2048 kbit/s . G.823 The control of jitter and wander within digital networks which are based on the 2048 kbit/s hierarchy . Pub 62411 High Capacity Terrestrial Digital Service * ITUT G.772 Protected monitoring points provided on digital transmission systems
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