Tributary interface of digital transmission apparatus

Details Tributary interface of digital transmission apparatus Tributary interface of digital transmission apparatus

1994-01-25

1995-10-17

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 68, 370 582, 370 55, 39518202, 395308, H04J 314

Patent

active

054597153

ABSTRACT:
A tributary interface, which performs interfacing between a high order transmission system and itself and includes a working tributary interface and a protection tributary interface as a pair for time slot interchanging with respect to the high order transmission system, is constructed so that the working tributary interface and the protection tributary interface can be operated independently. Thereby, in a time slot interchange unit of the SDH transmission system, the number of interfaces operable at a lower order side is temporarily increased so as to be able to cope with a request for temporarily increasing the number of interfaces from a user.

REFERENCES:
patent: 5016244 (1991-05-01), Massey, Jr. et al.
patent: 5216666 (1993-06-01), Stalick

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