DE893815C - Procedure to compensate for systematic connector couplings in pupinized telecommunications cable systems - Google Patents
Procedure to compensate for systematic connector couplings in pupinized telecommunications cable systemsInfo
- Publication number
- DE893815C DE893815C DES17244D DES0017244D DE893815C DE 893815 C DE893815 C DE 893815C DE S17244 D DES17244 D DE S17244D DE S0017244 D DES0017244 D DE S0017244D DE 893815 C DE893815 C DE 893815C
- Authority
- DE
- Germany
- Prior art keywords
- systematic
- compensate
- pupinized
- cable systems
- couplings
- 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
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/12—Arrangements for exhibiting specific transmission characteristics
- H01B11/16—Cables, e.g. submarine cables, with coils or other devices incorporated during cable manufacture
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Description
Verfahren zum Ausgleich systematischer Steckerkopplungen in pupinisierten Feinmeldekabelanlagen Bei Fernmeldekabelanlagen mit durch Steckerkopplungen verbundenen Einzelkabellängen kann die Summierung von systematischen Kopplungen innerhalb der Stecker zu unzulässig hohen Nebensprechwerten führen. Die Vermeidung ungünstiger Nebensprechwerte wurde bisher in derartigen Kabeln durch Auskreuzung der einzeln-en Aderp#aare erzielt. Derartige Kreuzungen. erschweren aber in Störungsfällen di-, Fehlerortsermittlungen. Um diese Kreuzungen zu vermeiden, ist es auch möglich, in den einzelnen Steckern die Kopplungen durch entsprechend bernessene Zusatzkondensatoren auszut' elleichen. Dies erfordert jedoch einen besonderen Steckeraufbau und eine verhältnismäßig große Anzahl von Kondensatoren. Gemäß der Erfindung wird deshalb bei pupinisierten Fernmeldekabelanlagen, deren einzelne Spulenfelder je aus mehreren durch Steckerkopplungen verbundenen Kabellängen bestehen, die Summe der systematischen, durch die Stecker bedingten Kopplungen zwischen, zwei Sprechkreisen eines Spulenfeldes je zur Hälfte in den Anschlußsteckern der zugehörigen Pupinspulenkästen ausgeglichen. Beispielsweise sei angenommen, daß ein Spulenfeld- einer Fernmeldekabelanlage aus vier Fahrikationslängen besteht, di-. mit acht Steckern versehen sind. Hierzu kommen die bciden Stecker der an-renzenden Spulenkästen. Beträgt nun beispielsweise eine bestimmte S teck-erkopplung 8 pF, so wäre die S umme innerhalb des Spulenfeldes gleich SopF. Um diese unzulässige Kopplung zu beseitigen, wären zufolge -der Erfindung an den Steckerplatten der anschließenden Spulenkästen Zusatzkondensatoren von je 4opF eInzubauen.Procedure to compensate for systematic connector couplings in pupinized fine signaling cable systems In telecommunications cable systems with individual cable lengths connected by connector couplings, the addition of systematic couplings within the connector can lead to inadmissibly high crosstalk values. The avoidance of unfavorable crosstalk values has so far been achieved in such cables by crossing out the individual pairs of wires. Such crossings. but make it difficult to determine the location of the fault in the event of a fault. In order to avoid these crossings, it is also possible to compensate for the couplings in the individual plugs by using additional capacitors accordingly. However, this requires a special connector structure and a relatively large number of capacitors. According to the invention, therefore, in pupinized telecommunication cable systems, the individual coil fields of which each consist of several cable lengths connected by connector couplings, the sum of the systematic couplings between two speech circuits of a coil field each half balanced in the connector plugs of the associated pupin coil boxes. For example, it is assumed that a coil field of a telecommunication cable system consists of four travel lengths, di-. are provided with eight plugs. In addition there are the two plugs of the adjacent coil boxes. Now, for example, is a particular S-teck erkopplung 8 pF, the S would umme within the coil field equal SopF. In order to eliminate this impermissible coupling, according to the invention, additional capacitors of 4opF each would have to be installed on the connector plates of the adjacent coil boxes.
Gemäß der Erfindung ist es möglich, jede systematische Kopplung auszugleichen. Auf welche Art der Kopplungen die Erfindung angewandt wird, richtet sich nach den gestellten Anforderungen und nach Aufbau und Betriebsweise der jeweiligen Anlage.According to the invention it is possible to compensate for any systematic coupling. The type of coupling to which the invention is applied depends on the requirements made and on the structure and mode of operation of the respective system.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES17244D DE893815C (en) | 1940-12-07 | 1940-12-08 | Procedure to compensate for systematic connector couplings in pupinized telecommunications cable systems |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE880633X | 1940-12-07 | ||
DES17244D DE893815C (en) | 1940-12-07 | 1940-12-08 | Procedure to compensate for systematic connector couplings in pupinized telecommunications cable systems |
Publications (1)
Publication Number | Publication Date |
---|---|
DE893815C true DE893815C (en) | 1953-10-19 |
Family
ID=25953049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES17244D Expired DE893815C (en) | 1940-12-07 | 1940-12-08 | Procedure to compensate for systematic connector couplings in pupinized telecommunications cable systems |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE893815C (en) |
-
1940
- 1940-12-08 DE DES17244D patent/DE893815C/en not_active Expired
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