RJ21 Telco Products
A telco cable connects multiple voice or data lines using a 25-pair (50-pin) Amphenol-style connector — handling up to 25 channels in a single cable. Telco cabling is the standard for PABX/PBX phone systems, LAN cross-connects and telecommunications frame wiring, and almost every PABX uses this type of connection.
We supply the full range of telco leads and RJ21 assemblies built to BT specification: male and female connectors, straight (180°) and right-angled (90°) hoods, and fan-outs to RJ45, RJ11, Krone or open-end tails. That lets you connect voice gateways, patch panels, 110/Krone blocks and distribution frames without adaptors.
Our telco cables are a direct match for Cisco VG224, VG310 and VG320 voice gateways and other equipment using the industry-standard Telco/Amphenol interface.
Can't see the length or pin-out you need? Every telco lead is made to order in our Hungerford workshop. Call 01488 685 400 or request a quote — in-stock lines dispatch the same working day, with free Mainland UK delivery over £250.
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Shop now →Frequently Asked Questions
What is a telco cable?+
A telco cable connects multiple voice or data lines using a 25-pair (50-pin) Amphenol-style connector. Each cable handles up to 25 channels and is used for PABX/PBX systems, LAN cross-connects and telecommunications frame wiring.
What connectors do telco cables use?+
Telco cables use the industry-standard RJ21 / Amphenol 25-pair connector. We supply male and female connectors, straight (180°) and right-angled (90°) hoods, and fan-outs to RJ45, RJ11, Krone or open-end tails.
What equipment are telco cables used with?+
They are used with PABX/PBX telephone systems, Cisco VG224/VG310/VG320 voice gateways, patch panels, Krone/110 blocks and MDF/IDF distribution frames.
Can you make telco cables to a custom length or pin-out?+
Yes. Every telco lead is built to order in our Hungerford workshop — specify the length, connector type and pin-out and we will assemble it. Call 01488 685 400 or request a quote.
How quickly do you dispatch?+
In-stock lines dispatch the same working day, with free standard delivery on Mainland UK orders over £250.