Remote loopback apparatus and method for telephone line repeaters
US5600656A · kind A · utility
6Cited by
9References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1995 |
| Grant date | Feb 4, 1997 |
| Priority date | — |
| Expiry date | Oct 25, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/408
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A loopback enabled by an instruction and address code pair transmitted with the regular data stream affords a simplified fault location scheme for a T1 repeater span. By selecting unique addresses for each repeater using a predetermined frame sequence and by testing for logic error density, erroneous enablement is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.