May 05, 2008
How NOT to do it
You want to have a telephone along with your corporate LAN connection. How do you do it. Simple!!
Where your LAN Patch Cable plugs into the LAN switch, slice the jacket and snip the blue pair. (first image)
On the other end of that same cable, slice the jacket again and carefully pull the blue pair out. (second image)
Crimp a modular plug onto the blue pair and plug it into a patch jack to pick up dial tone. (third image)
You are now providing both an Ethernet connection AND an analog telephone connection over a single Cat-5 floor cable.
On the other end of the floor cable you can then use a double jack, put just the blue pair on one and the rest on the other. Doesn't matter that it is non-standard, eh?? Doesn't matter that your Cat-5 cable no longer meets cat-5 specs and can cause data errors.
Oh, yeah. Since pulling the blue pair out is tough for long cables, relocate YOUR LAN connection to port 1 of the LAN Switch. The cable that was in port 1 you can put elsewhere, such as in port 23. It is not like anyone is watching, eh?
Unfortunately, someone IS WATCHING. Port 1 was the feed from the Router. I got the trouble report of the ports not matching up to the design records.
Edit: May 9th: Here is one of the modified patch cables:
