2009-02-13

Google logo for Darwin’s 200th birthday

I just liked it and was sad to be back to the regular logo so here it is:

image

2009-02-02

Wiring my phone system over Ethernet cabling

In our house i have run a number of Ethernet cables around for future expansion and for easy access.  However I had not quite finished all the wiring.  Anyway I need to move the phone (UK) from one room to another and was going to do it via the Ethernet cabling.  However I have forgotten the wiring for the phone.

So I have just summarised here the various connections:

Ethernet comes in two standard wiring patterns T568A (US govt standard and T568B AT&T standard).  I was going to choose the A version until I check some of my patch cables which were T-568B.  See incentre links:

image

From Zytrax I got an example wiring pattern for telephone links:

Pin number   Strand colour Name
1 Tip white & orange LAN (TX_D1+)
2 Ring orange LAN (TX_D1-)
3 Tip white & green LAN (RX_D2+)
4 Ring blue Telephone 1
5 Tip white & blue Telephone 1
6 Ring green LAN (RX_D2-)
7 Tip white & brown Telephone 2
8 Ring brown Telephone 2

(Tip and Ring comes from TRS Tip Ring Sleeve eg old telephone jacks) and I just need some standard BT wiring pattern for the UK standard 6 pin connector with 5 and 2 the normal for the wiring (but not master extension):

image