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Patching BT telephone lines to CAT5/CAT6 (RJ45) wiring
April 28th, 2016 11:54 am

We have four main categories of patch kits :-

  • Standard
  • Port Sharing/Multi Line
  • Privacy
  • Broadband

The standard patch kits are our most basic, they allow you to patch a single BT line to as many as 4 extensions. For example, the single user standard version (RJ45V1S) comes with everything requited to go from the BT outlet to the patch panel and then at the outlet end convert the network outlet back to a standard BT type socket. The 4 user version adds to this & yep, you guessed it, comes with everything required to patch a single BT line to 4 extensions over structured cabling (structured cabling is the term used to describe CAT5e & CAT6 cabling among others ).

The port sharing & multi line versions expand on this concept. The port sharing version (RJ45V1PD) allows you to patch a single BT telephone line over the SAME cable as an Ethernet device (a printer or a PC for example). There is a downside, because we use what used to be the spare pairs in the cable the device will only connect at 10/100 speeds. Gigabit speeds use all 4 pairs to transmit the data so there are no spares to utilise for other services. In reality this is no big deal, 10/100 is plenty fast enough in the majority of cases.

The Multi Line versions ( RJ45VDLS & RJ45VDLA) enable you to patch 2 separate BT lines over a single cable/outlet. One is designed for standard analogue lines (RJ45VDLS) while the other caters for ADSL enabled lines (RJ45VDLA). The really good thing about the ADSL version is it allows the modem or router to be sited at the outlet end rather than at the patch panel. In some situations this is what the user wants. Consider this scenario, you are in a serviced office block with structured cabling. The patch panel is in the basement but your office is on the top floor. You simply want to connect a wireless router into the telephone line so everyone can connect to the Internet wirelessly. With our kit you effectively move the BT line to the outlet in your office so the wireless signal is nice & strong.

The privacy versions are an evolution of the standard versions. What these kits do is effectively "lock" the telephone line to the extension that uses it first. Imagine you have one telephone line which is used for both telephone & a card machine (PDQ). If someone is on the telephone the last thing they want is the card machine interrupting their conversation! Likewise, if someone is doing a transaction on the card machine they don't...