Main distributing frame board for an electronic switching system
US4603377A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1984 |
| Grant date | Jul 29, 1986 |
| Priority date | — |
| Expiry date | Oct 19, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q1/149
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A main distribution board is designed to be mounted on a main distribution frame ("MDF") of a switching office for interconnecting inside and outside cables. A plug-in type connector is connected to the end of the inside cable. A first terminal block has U-groove clip terminals which are connected to the plug-in connector. A second terminal block has U-groove clip terminals which are connected via jumper wires to the clip terminals of the first terminal block. A third terminal block has U-groove clip terminals which are connected to the outside cable. A receptacle having female contact terminals is connected to the clip terminals of the second and third terminal blocks, the receptacle also having a female contact terminal for making a ground connection. This receptacle also receives male contact terminals of a protector module which includes a protection device. At least one back wiring board has the connector, the first, second and third terminal blocks and the receptacle mounted thereon. A shelf has the back wiring board fixed thereon for mounting the connector, the first, second and third terminal blocks, and the receptacle on the MDF, in an integrated form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.