this document provides:

    1 an overview of 2601, 2602, 2603, 2608, 2610, 2612 and 2613 mainstreet dtus

    2 a description of installation procedures and led operation

    3 a configuration description

    4 a description of connector pin and signal assignments

    some 3600 mainstreet series systems do not support all of the features described in this manual. the features supported depend on the type of system, the system software generic release and the generic release of the nmti or craft interface used.