atcomsystems.ca/forum Forums Other TDM Phone Systems 1A2 and Comkey Telephones & Systems Where to connect wires from 4a speakerphone

I have purshased a used 4A speakerphone system to complete my 2565. I'm surprised because the pictures of the connecting bloc I usually seen had 3 large connectors (one with 108A+switch+black module, 2nd for the phone, 3rd for remote cable) It was also an easy way to find the power supply wires. Unfortunatly, the one I've got is a smaller connecting box with only one large connector place. As is, the other side of the cable have all the wires to connect one by one somewhere... My system is used alone at home without a key system. Can I plug the 2565 phone connector diretly to the 108A+switch+black module and just use a cable for the 2 wires of the line directly on the phone ? I also need to find the wires for the power transformer of the 4A.

No, you definitely need the correct connecting block. It sounds like you just have a 149A or 149B connecting block which is not intended for the connection of the 4A set. You will need to try to get your hands on an 82A, B or C connecting block. They were made by Western Electric and by Precision Components, Inc. That's going to be a tough one to find, but you might want to place a post in the Buy/Sell Equipent category because I know that some people have indicated recently that they have large stockpiles of this stuff in their garages and basements.

Thanks for the reply. I will check the actual connecting block reference as soon as I will receive it. But many speaker phone sets at Ebay are sold with the same connecting bloc than mine. I'm curious to know what is it made for. To be more precise, when I say 4A system, I only mean using a classic 2565 phone with a 108A speaker and his switch system.

The block you need (82B or C) is specifically designed to offer true "plug and play" connection to a 2565 set. It is interally wired with three 25 pair connectors; one for the incoming cable, one for the line cord to the set, and the third for the transmitter and speaker plugs. Another plug can go into this connector to intoduce the 18 volt power that is required, but the block also has screw terminals to permit this connection.

On the other hand, the 149 block is just an "in-out" block that connects in-line with a cable feeding a telephone set. It permits access to many of the otherwise unused pairs in the cable to allow the installation of fax jacks nearby, etc.

This is not a 149 block but a Western Electric 223A, you can see a picture on the following link https:// . Do you think that it could be OK if I can't find a 82A/B/C ?

It will work if you have the M16 cord with spade tips that wire into the set. If all you have is amp plug than no.

All I have is what you see on the picture + 108A loudspeaker and of course a 2565 phone. I don't know what M16 cord is... If it's possible as is, I have to find the wires for the 18 VAC transformer power supply and know where to plug all the wires that I see...

With the 223 adapter you need to wire all leads to the set and to the speaker. With the 82 block it's all plugged into the block, with the exception of the transformer. Looks like your transmitter is the wired type, so now you need the M16 cable to go to the set to wire it.

Because I only want to use it on a single line at home, wouldn't it be easier to plug directly the 2565 phone connector to speaker+transmitter+blackmodule (as seen on the picture) and plug the 2 wires of the phone line directly into the 2565 slots, at the end I'd have to find the 2 wires for the 18 VAC transformer. Thanks for your precious help.

How you going to wire it without the proper connections? Using the set up you have pictured, what you have plugged in goes to the speaker, above that is a small plug that goes to the transformer, and above that the transmitter, all are plugged into the M16 amp and cable that go to the set. You can't plug them direct to the set you would have no feed from the KSU. Am I missing something?