1 mainstreetxpress 46020 network manager
2 4601a mainstreet auxiliary network manager
3 4601 mainstreet network manager
the 2601, 2602, 2603, 2612 and 2613 mainstreet dtus are full-duplex digital line drivers. the 2612 and 2613 mainstreet dtus are functionally identical to the 2601 and 2603 mainstreet dtus, except that they offer h-bit signalling, integral bert and power fait detection. power fail detection is only available when a 2612 or 2613 mainstreet dtu is connected to a 3600 or 3645 mainstreet system through a dnic line card with part number 90-0041-02-00-l.
the 2608 mainstreet dtu is a statistical multiplexer.
the 2610 mainstreet dtu connects any device that supports ascii terminal sessions into the newbridge proprietary cpss network, this allows management of non-newbridge devices from a 4600 mainstreet series network manager.
