Telecommunications T1 carrier overvoltage and fiber to curb power protector
US5490215A · kind A · utility
12Cited by
14References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 12, 1994 |
| Grant date | Feb 6, 1996 |
| Priority date | — |
| Expiry date | May 12, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2201/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fiber to curb and telecommunications T1 carrier overvoltage protection apparatus includes a pair of semiconductor junction breakdown crowbar devices connected in series between TIP and RING telephone lines, and a reverse standoff voltage breakdown zener-type device connected between ground potential and a junction connection of the series connected semiconductor junction breakdown crowbar devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.