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 peoples 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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Description Price Connector A Connector B Length Sheath Colour Shield Type Outer Sheath Material IP Rating Series Voltage Rating
RS Stock No. 446-664
BrandRS PRO
€3.73
Each
units
Male RJ12 Male RJ12 3m Grey - PVC - - -
RS Stock No. 439-0127
BrandRS PRO
€9.45
Each
units
Male RJ11 Male BT 5m Grey Unshielded Twisted Pair (UTP) - - - -
RS Stock No. 303-1287
BrandRS PRO
€4.96
Each
units
RJ11 RJ11 3m White - - - - -
RS Stock No. 446-686
BrandRS PRO
€7.90
Each
units
Male RJ45 Male RJ45 3m Grey - PVC - - -
RS Stock No. 667-3168
BrandRS PRO
€5.79
Each
units
Male BT Female BT 5m White - - - - -
RS Stock No. 667-3171
BrandRS PRO
€1.91
Each (In a Bag of 3)
units
UK Plug UK Jack 5m White - - - - -
RS Stock No. 446-658
BrandRS PRO
€5.11
Each
units
RJ9 RJ9 3m Grey - PVC - - -
RS Stock No. 439-0111
BrandRS PRO
€9.32
Each
units
Male RJ11 Male BT 3m Transparent Unshielded Twisted Pair (UTP) - - - -
RS Stock No. 495-0448
BrandRS PRO
€3.157
Each (In a Bag of 3)
units
Male RJ9(4/4) Male RJ9(4/4) 2.5m White - - - - -
RS Stock No. 667-3165
BrandRS PRO
€0.81
Each
units
Male BT Female BT 3m White - - - - -
RS Stock No. 495-0460
BrandRS PRO
€3.24
Each (In a Bag of 3)
units
RJ9 (4/4) RJ9 (4/4) 2.5m Grey - - - - -
RS Stock No. 667-3156
BrandRS PRO
€3.84
Each
units
BT Socket BT Socket 15m White - - - - -
RS Stock No. 495-0505
BrandRS PRO
€3.27
Each (In a Bag of 3)
units
Male RJ11 Male BT 3m White - - - - -
RS Stock No. 303-1271
BrandRS PRO
€2.55
Each
units
Male RJ11 Male BT431A 3m White - - - - -
RS Stock No. 446-670
BrandRS PRO
€5.05
Each
units
Male MMJ Male MMJ 3m Grey - PVC - - -
RS Stock No. 495-0404
BrandRS PRO
€4.597
Each (In a Bag of 3)
units
Male RJ11 Male BT431A 3m White - - - - -
RS Stock No. 182-4532
BrandRS PRO
€4.31
Each
units
Male RJ9(4/4) Male RJ9(4/4) - Cream - - - - -
RS Stock No. 331-7698
BrandRS PRO
€3.40
Each
units
Male BT - 5m White - - - - -
RS Stock No. 182-4560
BrandRS PRO
€4.96
Each
units
Male RJ9(4/4) Male RJ9(4/4) 5m White - - - - -