Two/Four Wire Digital Subset.
Abstract
This experimental hardware of a two/four wire digital subset was designed and fabricated for use to test, evaluate and demonstrate technical feasibility of simultaneous full duplex digital communications (voice and data), at 16 and 32 Kbps, over a pair of conductors (2 wires) heretofore only possible over 2 pair of conductors (4 wires). Technical/operational feasibility was successfully demonstrated over 4 kilometers of wire without any degradation of voice quality. Test results support conclusions that a 2-wire line transmission circuit can be shared for accommodating simultaneous full duplex voice/data communications with the same performance obtained over 4-wire circuits in a more cost effective manner (ratio of 2-1 cost reduction in outside cable plant facilities). (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1976
- Accession Number
- ADB013378
Entities
People
- Don Snyder
- Kenneth Hagstrom
- Philip J. Kiley
- Vishwas R. Godbole