US2208918A - Communication system - Google Patents

Communication system Download PDF

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Publication number
US2208918A
US2208918A US212665A US21266538A US2208918A US 2208918 A US2208918 A US 2208918A US 212665 A US212665 A US 212665A US 21266538 A US21266538 A US 21266538A US 2208918 A US2208918 A US 2208918A
Authority
US
United States
Prior art keywords
high frequency
lines
tabs
soldering tabs
soldering
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 - Lifetime
Application number
US212665A
Other languages
English (en)
Inventor
Wiessner Alfred
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Standard Elektrik Lorenz AG filed Critical Standard Elektrik Lorenz AG
Application granted granted Critical
Publication of US2208918A publication Critical patent/US2208918A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/02—Constructional details
    • H04Q1/14—Distribution frames
    • H04Q1/142—Terminal blocks for distribution frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H04H20/77—Wired systems using carrier waves
    • H04H20/81—Wired systems using carrier waves combined with telephone network over which the broadcast is continuously available
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/02—Constructional details
    • H04Q1/14—Distribution frames

Definitions

  • the present invention relates to communication systems, and more specifically to wire-radio systems operating with carrier frequency intelligence transmission over telephone lines.
  • Fig. 1 is a perspective view of a main distributor rack or frame
  • Fig. 2 illustrates a partially sectioned side elevation of one embodiment of a 5o terminal strip according to the invention
  • Fig. 3 is a front elevation of the terminal strip shown in Fig. 2
  • Fig. 4 is a top view of the same terminal strip.
  • V denotes the main distributor rack or frame which is adapted to re- 938, Serial No. 212,665 June 15, 1937 ceive a plurality of terminal strips L more precisely shown in the Figs. 2 to 4.
  • a terminal strip according to the present invention is shown in the Figs. 2 to 4 and comprises a base plate I carrying at its rear a box 2 enclosing the circuit elements, i. e. inductances and capacities, of the electric separating lters allotted to the individual lines.
  • the front of the base plate I carries two bars or ribs 3 and 4 of insulation, each of which is provided with three arrays of soldering tabs 5, 6, l and 8, 9, I0, respectively.
  • the subscriber lines may be connected to the soldering tabs of the arrays 5, 6 and l, while the tabs of the arrays 8, 9 and l0 are connected to the leads pertaining to the exchange equipment.
  • Each of said arrays generally comprises twenty soldering tabs.
  • a covering plate or disc I I is attached to the upper ends of said bars and serves as support for soldering tabs over Which the high frequency currents are impressed upon the system.
  • One of the soldering tabs I2 of this plate is allotted to each three-wire group of subscriber lines terminated at the soldering tabs of the bar 3.
  • the high frequency currents are applied to the terminal strip over soldering tabs I3 interconnected in groups by conductors I4 as shown in Fig. 3, and each of said groups is fed by high frequency currents of different amplitudes.
  • the electric separating filters arranged in the box 2 are then to be wired in such manner that the low frequency input circuit of the filter is connected to the inwardly projecting part of the soldering tabs which are associated with the incoming leads, that the high frequency input circuit of the corresponding filter is connected to the appertaining soldering tabs of the array I2, and that the output circuit of the filter is connected to the inwardly projecting parts of the soldering tabs allotted to the outgoing leads.
  • the device is also provided with the usual voltage cut-out equipments.
  • the soldering tabs may be fixed in the bars 3 and 4 during the moulding process thereof.
  • a telephone exchange as defined in claim 1 having a covering plate xed on said bars, and soldering tabs in said plate for applying high frequency 10 oscillations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Structure Of Telephone Exchanges (AREA)
US212665A 1937-06-15 1938-06-09 Communication system Expired - Lifetime US2208918A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2208918X 1937-06-15
DEL92731D DE755163C (de) 1937-06-15 1937-06-16 Anordnung fuer Telefonnetze, in denen eine zusaetzliche traeger-frequente Nachrichtenuebermittlung erfolgt, insbesondere fuer Drahtfunksysteme

Publications (1)

Publication Number Publication Date
US2208918A true US2208918A (en) 1940-07-23

Family

ID=66522929

Family Applications (1)

Application Number Title Priority Date Filing Date
US212665A Expired - Lifetime US2208918A (en) 1937-06-15 1938-06-09 Communication system

Country Status (5)

Country Link
US (1) US2208918A (et)
DE (1) DE755163C (et)
FR (1) FR839277A (et)
GB (1) GB500414A (et)
NL (1) NL51179C (et)

Also Published As

Publication number Publication date
NL51179C (et) 1941-10-15
DE755163C (de) 1953-03-02
GB500414A (en) 1939-02-08
FR839277A (fr) 1939-03-30

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