GB593779A - Improvements in electrical signalling systems and apparatus for use therein - Google Patents
Improvements in electrical signalling systems and apparatus for use thereinInfo
- Publication number
- GB593779A GB593779A GB1494845A GB1494845A GB593779A GB 593779 A GB593779 A GB 593779A GB 1494845 A GB1494845 A GB 1494845A GB 1494845 A GB1494845 A GB 1494845A GB 593779 A GB593779 A GB 593779A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wires
- pairs
- blocks
- plates
- discs
- 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
- 230000011664 signaling Effects 0.000 title 1
- 239000002184 metal Substances 0.000 abstract 2
- 230000000717 retained Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/08—Metering calls to called party, i.e. B-party charged for the communication
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
593,779. Automatic exchange equipment. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and BAKER, G. T. June 13, 1945, No. 14948. [Class 40 (iv)] In a line identification arrangement of the kind described in Specification 539,823 in which the metering wires of the lines are connected over pairs of non-linear resistances to wires to which code markings are applied, the resistance discs pertaining to each group of e.g. 100 lines are clamped together with metal connecting plates between them to form a compact unit. The unit or block shown has 5 columns each comprising 20 pairs of discs a, b which are clamped by means of six pairs of insulated rods extending between top and bottom clamp plates. The metal plates between the associated pairs a, b are connected to the metering wires, while the other intervening plates are connected alternately to units and tens marking wires U, T, the latter set being constituted as strips extending over all the columns. In a 10,000 line exchange in which there are 100 such blocks, the tens marking wires are commoned over all the blocks having the same thousands digit, while the units marking wires are commoned over all the blocks having the same hundreds digit, thus reducing the total number of marking wires required to 200. It is sometimes preferable to employ units or blocks having a different number of pairs of discs. The blocks may conveniently be mounted on the meter rack which has a number of plates each accommodating 40 meters, and each block then consists of 40 pairs of discs arranged in two columns. The advantages of longitudinal and transverse multipling can be retained by suitable arrangement of the connections to the metering wires.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE468507D BE468507A (en) | 1945-06-13 | ||
US665020A US2598097A (en) | 1945-06-13 | 1946-04-26 | Assembling and connecting nonlinear resistance elements |
DEP26892A DE830359C (en) | 1945-06-13 | 1948-12-25 | Arrangement for the assembly of non-linear resistance elements in telephone systems with facilities for identifying calling lines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB593779A true GB593779A (en) | 1947-10-24 |
Family
ID=1731137
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1494845A Expired GB593779A (en) | 1945-06-13 | 1945-06-13 | Improvements in electrical signalling systems and apparatus for use therein |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB593779A (en) |
-
1945
- 1945-06-13 GB GB1494845A patent/GB593779A/en not_active Expired
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