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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Description Prix Connector A Connector B Length Sheath Colour Shield Type Outer Sheath Material IP Rating Series Voltage Rating
N° de stock RS 446-664
MarqueRS PRO
5,09 €
Each
Unité
Male RJ12 Male RJ12 3m Grey - PVC - - -
N° de stock RS 439-0127
MarqueRS PRO
10,34 €
Each
Unité
Male RJ11 Male BT 5m Grey Unshielded Twisted Pair (UTP) - - - -
N° de stock RS 616-2609
Référence fabricant11.04.1906-10
MarqueRoline
2,52 €
Each
Unité
RJ11 RJ11 6m Grey Unshielded - - - -
N° de stock RS 446-686
MarqueRS PRO
8,31 €
Each
Unité
Male RJ45 Male RJ45 3m Grey - PVC - - -
N° de stock RS 495-0460
MarqueRS PRO
3,58 €
Each (In a Bag of 3)
Unité
RJ9 (4/4) RJ9 (4/4) 2.5m Grey - - - - -
N° de stock RS 439-0111
MarqueRS PRO
10,20 €
Each
Unité
Male RJ11 Male BT 3m Transparent Unshielded Twisted Pair (UTP) - - - -
N° de stock RS 334-5918
Référence fabricantSPE164912
11,61 €
Each
Unité
Male RJ11 - 3m Black - - - - -
N° de stock RS 495-0404
MarqueRS PRO
2,08 €
Each (In a Bag of 3)
Unité
Male RJ11 Male BT431A 3m White - - - - -
N° de stock RS 182-4532
MarqueRS PRO
4,66 €
Each
Unité
Male RJ9(4/4) Male RJ9(4/4) - Cream - - - - -
N° de stock RS 446-658
MarqueRS PRO
5,65 €
Each
Unité
RJ9 RJ9 3m Grey - PVC - - -
N° de stock RS 181-2578
Référence fabricantVDIR542110
6,94 €
Each
Unité
- - 48mm - - - IP54 Zelio Count 40 V dc
N° de stock RS 331-7698
MarqueRS PRO
3,69 €
Each
Unité
Male BT - 5m White - - - - -
N° de stock RS 182-4560
MarqueRS PRO
5,48 €
Each
Unité
Male RJ9(4/4) Male RJ9(4/4) 5m White - - - - -
N° de stock RS 666-7564
Référence fabricant520210003ASSY
MarqueEDAC
3,59 €
Each (In a Bag of 2)
Unité
3 Way Male Wire to Board Free End 1m White - - - - -
N° de stock RS 667-3165
MarqueRS PRO
3,58 €
Each
Unité
Male BT Female BT 3m White - - - - -
N° de stock RS 252-9991
Référence fabricantCT1136401I
7,18 €
Each
Unité
Male RJ11 - 3m - - - - - -
N° de stock RS 495-0505
MarqueRS PRO
3,543 €
Each (In a Bag of 3)
Unité
Male RJ11 Male BT 3m White - - - - -
Nouveau
N° de stock RS 216-3345
Référence fabricant6XV1873-2G
MarqueSiemens
5,81 €
Each
Unité
- - 5000m Black - PVC - - -
N° de stock RS 666-0002
Référence fabricant565-003-714-900
MarqueEDAC
14,26 €
Each
Unité
3 Way Male Wire to Wire - 1m Black - - - - -
N° de stock RS 667-3171
MarqueRS PRO
2,127 €
Each (In a Bag of 3)
Unité
UK Plug UK Jack 5m White - - - - -