Standard Pinout
The conductors are numbered 1–6 from the end further from the spigot. The contact terminals are normally labelled with their numbers on rewireable plugs and sockets.
- Pair 2 ring (black)
- Pair 1 tip (white)
- Pair 3 ring (green)
- Pair 3 tip (orange)
- Pair 2 tip (red)
- Pair 1 ring (blue)
Use of pair one is almost always to standard, but pairs two and three may not be present, or the conductors may be used for other purposes. Pair two is often used for local power supply or other proprietary purposes. Adaptors to modular connectors may connect only pair one, or pairs one and two, or all six conductors.
Modems and other equipment supplied in Australia are nowadays normally provided with a modular plug, and an adaptor which connects only pair one, allowing the modular plug to be used with a 610 or 611 socket in need. The pin carrying pair three is often missing completely from the plugs of these adaptors.
Read more about this topic: 600 Series Connector
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