Telephone Extension Cables

Telephone extension cable is a flexible extension lead used to communicate data from a phone or modem to a BT plug. Their extension length allows them to extend the capabilities of the current cable. Copper wires within the extension cable are used to transmit low voltage, high frequency electrical loads across long distances.

Fibre optic cables can also be considered a type of telecommunications cable and are at the cutting edge of communications as they have been designed to handle very high bandwidths.

What are telephone extension cables used for?

Telephone extension cables are used as a way of achieving long-distance communication. This includes telephones, television and computer communications.

Telephone extension cables differ mostly because of their cable connections. BT telephone sockets were introduced into people’s homes so they could have access to a telephone and broadband. There are two types of BT plug connectors, 431A which is 4-way and 631A which is 6-way.

The connector on the telephone is not standard but is typically a RJ11, 6P4C or 6P2C modular connector. In order to use broadband a DSL filter is necessary allowing low frequency noise to not be affected by high frequency data. The RJ11 and ADSL plugs can both connect to the DSL filter by using the sockets provided.

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Omschrijving Prijs Connector A Connector B Length Sheath Colour Shield Type Outer Sheath Material IP Rating Series Voltage Rating
RS-stocknr. 446-664
FabrikantRS PRO
4,34 €
Each
Aantal stuks
Male RJ12 Male RJ12 3m Grey - PVC - - -
RS-stocknr. 303-1287
FabrikantRS PRO
4,94 €
Each
Aantal stuks
RJ11 RJ11 3m White - - - - -
RS-stocknr. 439-0127
FabrikantRS PRO
9,89 €
Each
Aantal stuks
Male RJ11 Male BT 5m Grey Unshielded Twisted Pair (UTP) - - - -
RS-stocknr. 446-686
FabrikantRS PRO
7,12 €
Each
Aantal stuks
Male RJ45 Male RJ45 3m Grey - PVC - - -
RS-stocknr. 495-0404
FabrikantRS PRO
1,36 €
Each (In a Bag of 3)
Aantal stuks
Male RJ11 Male BT431A 3m White - - - - -
RS-stocknr. 446-658
FabrikantRS PRO
5,53 €
Each
Aantal stuks
RJ9 RJ9 3m Grey - PVC - - -
RS-stocknr. 182-4532
FabrikantRS PRO
5,82 €
Each
Aantal stuks
Male RJ9(4/4) Male RJ9(4/4) - Cream - - - - -
RS-stocknr. 439-0111
FabrikantRS PRO
9,76 €
Each
Aantal stuks
Male RJ11 Male BT 3m Transparent Unshielded Twisted Pair (UTP) - - - -
RS-stocknr. 495-0460
FabrikantRS PRO
2,143 €
Each (In a Bag of 3)
Aantal stuks
RJ9 (4/4) RJ9 (4/4) 2.5m Grey - - - - -
RS-stocknr. 495-0448
FabrikantRS PRO
2,093 €
Each (In a Bag of 3)
Aantal stuks
Male RJ9(4/4) Male RJ9(4/4) 2.5m White - - - - -
RS-stocknr. 303-1271
FabrikantRS PRO
2,63 €
Each
Aantal stuks
Male RJ11 Male BT431A 3m White - - - - -
RS-stocknr. 495-0505
FabrikantRS PRO
2,87 €
Each (In a Bag of 3)
Aantal stuks
Male RJ11 Male BT 3m White - - - - -
RS-stocknr. 667-3165
FabrikantRS PRO
3,42 €
Each
Aantal stuks
Male BT Female BT 3m White - - - - -
RS-stocknr. 667-3171
FabrikantRS PRO
2,19 €
Each (In a Bag of 3)
Aantal stuks
UK Plug UK Jack 5m White - - - - -
RS-stocknr. 667-3156
FabrikantRS PRO
3,93 €
Each
Aantal stuks
BT Socket BT Socket 15m White - - - - -
RS-stocknr. 182-4560
FabrikantRS PRO
4,20 €
Each
Aantal stuks
Male RJ9(4/4) Male RJ9(4/4) 5m White - - - - -
RS-stocknr. 331-7698
FabrikantRS PRO
2,97 €
Each
Aantal stuks
Male BT - 5m White - - - - -
RS-stocknr. 446-670
FabrikantRS PRO
5,83 €
Each
Aantal stuks
Male MMJ Male MMJ 3m Grey - PVC - - -
RS-stocknr. 616-2609
Fabrikantnummer11.04.1906-10
FabrikantRoline
2,47 €
Each
Aantal stuks
RJ11 RJ11 6m Grey Unshielded - - - -
RS-stocknr. 334-5918
FabrikantnummerSPE164912
FabrikantDecelect Forgos
11,61 €
Each
Aantal stuks
Male RJ11 - 3m Black - - - - -
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