Digital subscriber loop termination device

Details Digital subscriber loop termination device Digital subscriber loop termination device

1985-11-29

1988-05-31

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

370 84, 375 25, 375 4, H04B 138, H04L 516

Patent

active

047486376

ABSTRACT:
A digital subscriber loop termination device, such as an office channel unit, dataport unit, digital data bank unit or the like, employs a microprocessor for providing data transfer between customer lines and network lines operating at respective different data transmission rates. The microprocessor circuit responds to network sync pulses for providing transfer of network input bytes to customer output generators and for providing for transfer of customer input bytes to network output serial generators. Additionally, the circuit includes facilities for enabling operation at different customer rates.

REFERENCES:
patent: 4578797 (1986-03-01), Satoh et al.
patent: 4620311 (1986-10-01), Immink
Bender et al., "Local Distribution System", The Bell System Technical Journal, vol. 54, No. 5, May-Jun. 1975, pp. 919-942.
Dunbar et al., "Dataport-Channel Units for Digital Data System 56-kb/s Rate", The Bell System Technical Journal, vol. 61, No. 9, Nov. 1982, pp. 2741-2756.

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