atcomsystems.ca/forum Forums Wiring - Telecom Carriers - Trunks & Services Cabling Telephones Systems Wiring Wiring a 25 pair amphenol to 66 block

I was just doing some research about amphenol connectors. 'Cuz I know they're used in many systems to connect the KSU to a 66 block. But what kept getting me confused was the 'wiring scheme' used to connect the 25 pair cable to the 66 block. For instance, I know that the 25 pair cables contain 5 sets of 5 pairs, but when you punch the cables down on a block what order do you go in? Is there any website or document that displays a clear representation of how to do this?

O yeah, also, lets say... hypothetically speaking I have a norstar 6x16 (i don't) and I need to connect the cables that go to the phones to the block. I know they connect on the right side and that (i need to use a bridging clip) they go in the regular order, but... do I skip any pairs (that go from the 25 pair cable) when I am punching down the cables or do I just go straight down the row?

[This message has been edited by chicagotechsolutions (edited February 15, 2005).]

https://www.cabling-design.com/references/colorcodes/25pair.shtml

The tip punches down above the ring.

ah, thank you very much

Or as I learned:
While
Running
Backwards
You
Vommit
and
Boy
Over
Girl
Brings
Smiles

just to bend the subject a little bit. Does anyone know where I can get amphenol connector? I have an amp machine and plenty of 25-pair cable. Searching the market, I pretty much only find pre made cables. I did find one source that had a minium order of 250, thats about 200 more than I need.

SST,

Check with Graybar. I used to purchase champ connectors from them using the Amp butterfly style crimper. M & F were both available.

I have a 25 pair amp. tool made by 3M if you need to get one.

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Thanks a lot for all of your responses, I really appreciate the quick help

I would was also wondering how to...
Lets say... hypothetically speaking I have a norstar 6x16 (i don't) and I need to connect the cables that go to the phones to the block. I know they connect on the right side and that (i need to use a bridging clip) they go in the regular order, but... do I skip any pairs (that go from the 25 pair cable) when I am punching down the cables or do I just go straight down the row?

No, you don't skip any pairs. I hope you're not punching the jack cables directly to the KSU block though. You should have your jack cables going to a separate block and use cross-connect (jumper) wire between them.

You may want to try Anixter for your Amp ends.
Always punch all pairs and lable your blocks.. And if your wall mounting use a back board! Don't just hang it on drywall or cynder block.
Typically it goes from left to right:
CO or (provider), system ports, and field.
It's not unusual to have to vary from this
as long as it's neat.
Use spools or open D-rings as a cross connect bridge accross the top of your 66 blocks.
Also keep in mind, 110 blocks can make for a nice clean install
Larger systems are sometimes rack mounted using patch panels for system ports and field wiring.
Tip=top tip-top
I always glance down the 66 block after wiring but before punching from top down and make certain every 2nd clip is blue/orange/green/brown/slate.
If you flipped the tip & ring you can catch it pretty quick.