sundance-communications.com/forum Forums TDM Business Telephone Systems Inter-Tel Telephones & Systems New (OLD) premier system installation

A friend just acquired a premier telephone system without any cables or blocks. I am going to get the "privilege" of installing it without any diagrams or cables. Is there anyone out there that has any info on what the color code is for wiring the incoming lines and outgoing phones or has any 25 pair cables with amphenols connected? Or amphenols already wired to blocks would be even better.

Thanks

3 pair per phone, make sure you flip the w/b pair at one point. Don't accidently short the same pairs as you will blow the fuse on the card. This common occurance happens when punching down. Have fun.

First off your going to have to tell us what premier system. What cards are in the KSU and what phones do you have. Also the more info you give in your profile helps pull in the pros.

Welcome to the board OldEE. It'll be nice to have a "Double EE" hanging out here

Thanks for the help so far. I updated some on the profile. Not much chance there to list much. I am still in the dark though as to what the 25 pair color coding is going from the card to the 50 pin block.
The unit is a 1224/2460
Incoming Card 660.2300 436003 9105
Outgoing Card STN a b d 660-2200 426004

It only needs to be set up for 6 incoming lines and 12 phones so just need 3 cables total. I will have to obtain the actual cables also as those were not included.

The blocks are easy as I have extra of those but do not have any wiring fanout to connect the 25 pair cable to the 50 pin blocks for incoming and outgoing.

The box has 4 incoming cards and 7 telephone cards so have some spares.

Does anyone have the color code for the 12 pair input and output cables as they are punched down on the 50 pin blocks?

Thanks in advance.

Oh! OK. Sorry about that. Wiring 101, lol.

Starting from the top:

White/Blue
Blue/White
White/Orange
Orange/White
White/Green
Green/White
White/Brown
Brown/White
White/Slate
Slate/White

The pattern of Blue, Orange Green, Brown, Slate is a constant. The first 5 pair use White. The next 5 will use Red, then Black, Yellow and finally Violet.

That being said, I know being an Electrical Engineer you'll have no problem with the wiring but bear in mind the Premier has to be programmed at a terminal and there is quite a bit to it. Even guys like us who have programmed MANY of them have to come back here and ask questions often as it's been a few years since those systems were poplular.

Without a manual you are going to have some issues. You might want to check the links at the top of the page to see if you can get one from Sundance.

If I may make a suggestion, once you get the wiring done and the system up and running, you might want to install a modem. Once that is done you could post a request to hire a technician to remotely program the system for you. Then you could make changes as necessary.

Good Luck and let us know how it goes!

THANKS. You made the wiring clear enough that even an EE could understand it. I presume then that both the input and output cables are wired the same? For the input where a card is only good for 6 incoming lines, are only the first 6 pair used and the rest left blank? Are the last 14 pins on the output block left blank also? (6 telephones per card at 3 pair each is 36 pins.

Do you know of any good source of coming up with the amphenol connectors and short cables?

I know where I can purchase a manual for $30 (reasonable) if it is the right one. The place where I am installing it is a cohort's engineering company and he has an electrical tech that is half computer junky so he can, and will, do the programming. Is there anything special that I need to look for when ordering the manual?

We will be programming it for VERY basic functions. The system that it is replacing is the old 25 pair to each phone system. We will be pulling in new wire for the phones, as well as some CAT5E for the LAN as well.

I am still not sure about the reversing of the b/w pair. It wouldn't be a problem is everything was already wired. I presume that if you use a standard punchdown wall plug it has the blue/blue-white designations and those have to be reversed somewhere between the telephone and the amphenol, typically at the wiring between the system block and the house block. Is that correct?

I would normally recommend a multi-plug wall plate with plugs for phone and data. Is it still recommended to get the 3 pair inserts instead of the typical DATA 4 pair?

Thanks again

Yes, you will only need part of the block. The rest will remain blank. As for the amphenol connectors, what you're looking for are referred to as "tails." Graybar and Alltel are a few places to start. You can even buy 66 blocks with tails attached if you're so inclined.

As for the reversal, you are correct. Somewhere between the station block and the jack you need to reverse the pair. I usually do it at the jack and yes the jacks are color coded. Again I highly recommend Leviton jacks and you can get the multiplate to handle the Cat III and Cat V outlets and YES! Stay with a 3 pair jack!

As for the programming, yes $30 is smartest money you will spend on this project. The Premier manual even shows how to properly layout your backboard and station blocks.

30 volts on first pair so use caution that you don't short them and remember never to test with butt set

I always liked to reverse on the punch block, it takes a little more concentration when punching down but you can use a mod tap to plug phone into 66 block for trouble shooting


Blue/White Station 1
White/Blue This pair reversed
White/Orange
Orange/White
White/Green
Green/White
Brown/White Station 2
White/Brown This pair reversed
White/Slate
Slate/White
Red/Blue
Blue/Red
Orange/Red Station 3
Red/Orange " "