atcomsystems.ca/forum Forums Wiring - Telecom Carriers - Trunks & Services Cabling Telephones Systems Wiring Installer Question: 110 hardware

Ahh - BR=Brand-Rex.

Thanks, Ed.

Sam

I have a few of those courtesy of Ed. I also have one that has a 3 pair jack and a 1 pair jack on the same unit. Not sure what that would be used for?

Jeff:

Those would be BR-866JA's. They were used back in the days when Merlin consoles required external power via the white/brown pair. The KSU didn't supply this power since consoles used a regular old station port.

Installers would place these adapters on the station blocks heading toward the console. They would then place a 4-pair cord between the adapter and the station port on the KSU.

The extra jack was used to plug the cord in for the power adapter. This was a simple wall wart with a modular jack on it. A plain old one-pair USOC line cord was used to complete this high-tech connection.

The BR-866JC's were the ones where all four pairs come out on a single jack, wired 568B. Before you ask, I don't know if there was a BR-866JB! :p

Man, I don't know HOW you know all of this

Necessity.

What is your reasoniong for a 66M? Why not a 110 block or better yet a patch panel? Is cost really that much of an issue? I am just curious is all. I have always wondered why anyone would impose a 66 on cat 5 wiring. Escpecialy since you have to terminate two sets of CAT5 to make a connection and that is not only much slower but you run the risk of inducing faults far more easily than if you used a dedicated CAT5 patch panel. And you may get away with possibly 100 MHz but certainly not 1000.

If you go 110 block you can use the S110P patch cables to test them. You can use the BR-866 as suggested, be sure it handles all four pair, they also come in 2 and 3 pair versions. Graybar sells them. But you do lose your CAT5 performance as the contacts are not gold tinned.

Because the idiots who supplied the phone system built it with 1990 specs. It "looks good" but it isn't worth a crap for installation or troubleshooting. My installations have two parts; phone sytsem and house cable with cross connects in between. These people mount up 66 blocks and run cross cuts to the outer pins, label them up with blue and green sharpies that fade to nothing in 3 years btw), then they ship it out and expect us to lay the house cables down on the inner pins of a 66 block---Cat5e no less :-)

These are installations that I don't put in my picture portfolio. I just do them for the cash and, yes, it's a union job so it's huge cash.

Carl

I see. I had kind of hoped that no sane installer would do a CAT5 job with 66 blocks if there was another way. I mean I know it can be done, but one has to wonder why when patch panels are so cheap and easier to work with.

No, I LOVE punching Cat 5e cable on 66 blocks because it's so fast and efficient punching one wire up and one wire down.

Crazy Carl

Ya nut. I sure hope you charge by the hour, dude. Seriously, I know what you mean. I have this one site that has just been rework after rework. It looks like organized hell and an experienced eye can see the compromises. But oh my, did it pay off like a slot machine