Pinouts & Wiring Diagrams

wiringdiagramPinouts and Wiring Diagrams are critical to making leads and cables – two cables can look identical externally, but if the wiring is wrong internally at best the product won’t work and at worst it could lead to damaged product, fire or even death.

This section contains pinout lists, wiring diagrams and details of the technical aspects of various types of cabling and connections. You can expect to find basic information and guidance as well as links to more resources that you may find useful.

Please select from the links below to view the information you require. If you can’t find what you are looking for, call 0345 193 0615 (Lo-call local rate. multiple lines) – if you have a ‘free calls’ deal that needs an STD number try 01273 510147 (single line only) – visit the Help Desk or email us for advice and assistance with any mains cabling requirements.


If you need any further information please email our sales team or telephone one of our hotline numbers: UK: Local Rate: 0345 193 0615 (many lines) UK: STD: 01273 515735 (only one line) International: +44 1273 510147

Telecoms Wiring

Telecoms Wiring This article provides information about the modular and BT connectors, cable, and pinouts that are used in Telecoms wiring. Leads Direct sells a wide range of Telecoms cables ready made, including, RJ10, RJ11, RJ12, ADSL cables, and BT 4 and … Continue reading

USB Wiring

If you need information about USB and how it is wired, you have come to the right place. Leads Direct carries a huge range of USB leads , USB Adaptors and USB accessories. You can view and purchase these leads … Continue reading

What is the difference between RJ9, RJ10, RJ11, RJ12 and RJ45 connectors?

These are all crimp connectors with gold pins used for telecoms, networking and occasionally low voltage lighting control applications. The difference is in the number of positions available on the connector and the number of contacts actually present. Obviously where … Continue reading

Wiring & Pinout Links

Although the Leads Direct technical library is one of the most comprehensive resources of its kind, we can’t keep everything on every subject! The links below point to online resources that can provide further information or guidance on pinouts and … Continue reading

XLR Connectors & Wiring

The XLR connector is used for various audio purposes including microphones, loudspeakers, and even lighting. The connector is often known as a cannon plug or cannon connector in reference to its original manufacturer, James H. Cannon who was the founder … Continue reading

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