GB1184648A - Direct Exchange Line Repeater. - Google Patents
Direct Exchange Line Repeater.Info
- Publication number
- GB1184648A GB1184648A GB6009468A GB6009468A GB1184648A GB 1184648 A GB1184648 A GB 1184648A GB 6009468 A GB6009468 A GB 6009468A GB 6009468 A GB6009468 A GB 6009468A GB 1184648 A GB1184648 A GB 1184648A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- contacts
- transformer
- winding
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/0096—Trunk circuits
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Abstract
1,184,648. Automatic exchange systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 18 Dec., 1968 [21 Dec., 1967], No. 60094/68. Heading H4K. A main exchange line is terminated at a private exchange across one diagonal of a rectifying bridge, the other diagonal of which feeds a call relay O and a winding on a line transformer T. Call relay O may be a reed relay the response of which is damped against transients by the fact that it is in series with transformer winding W3. To complete a loop across the main exchange line, contacts 21 shunt the relay O and contacts v shunt ringing circuit components R, C2. Contacts 21 may be provided by a reed relay. Contacts v are used to relay loop disconnect pulses to the main exchange, winding W3 providing no distortion as it discharges in both directions through the bridge. Standing currents in the transformer windings may be set in opposition to produce a low net magnetization and allow use of a line transformer that is small and cheap.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6717441A NL6717441A (en) | 1967-12-21 | 1967-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1184648A true GB1184648A (en) | 1970-03-18 |
Family
ID=19802048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6009468A Expired GB1184648A (en) | 1967-12-21 | 1968-12-18 | Direct Exchange Line Repeater. |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT288496B (en) |
| BE (1) | BE725750A (en) |
| DE (1) | DE1813413A1 (en) |
| DK (1) | DK119518B (en) |
| FR (1) | FR1595202A (en) |
| GB (1) | GB1184648A (en) |
| NL (1) | NL6717441A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3798379A (en) * | 1971-09-22 | 1974-03-19 | Tel Ind Inc | Connector terminal dial repulser |
-
1967
- 1967-12-21 NL NL6717441A patent/NL6717441A/xx unknown
-
1968
- 1968-12-07 DE DE19681813413 patent/DE1813413A1/en active Pending
- 1968-12-17 FR FR1595202D patent/FR1595202A/fr not_active Expired
- 1968-12-18 DK DK620468A patent/DK119518B/en unknown
- 1968-12-18 GB GB6009468A patent/GB1184648A/en not_active Expired
- 1968-12-18 AT AT1228968A patent/AT288496B/en not_active IP Right Cessation
- 1968-12-19 BE BE725750D patent/BE725750A/xx unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3798379A (en) * | 1971-09-22 | 1974-03-19 | Tel Ind Inc | Connector terminal dial repulser |
Also Published As
| Publication number | Publication date |
|---|---|
| DK119518B (en) | 1971-01-18 |
| AT288496B (en) | 1971-03-10 |
| NL6717441A (en) | 1969-06-24 |
| DE1813413A1 (en) | 1969-07-03 |
| BE725750A (en) | 1969-06-19 |
| FR1595202A (en) | 1970-06-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |