atcomsystems.ca/forum Forums Other TDM Phone Systems Antique Telephones 4a Speakerphone Help... Almost there.

I just acquired a full 4A Speakerphone with 23A Block Connector. I have the M16c Cord and have ordered a 44A Conn Block. The question is where I go from there to connect to a Single Line? I wanted to take a standard phone line with modular plug on one end and wire it onto the 44A and connect it with the M16C Chord, but I have NO idea which color of the cable should correspond. I'm looking at the schematic but I haven't been able to identify the color code as of yet. Any ideas? This set has been hooked up before (not by me) and the wires that were used have the leads visible already. This set has everything.. Power Adapter etc... and is in fairly unused condition. I would love to get it back up and running but i need to some how make it modular. I noticed that there is a Red, Green Yellow cable in the 16C chord, but it doesn't look like they were used in the last hook up and the schematic doesn't show the red cable lining up with the Red cable from the phone.

Also.. although this is a 4A Speakerphone Same appearance, transmitter, speaker, etc.. It's not a "Bell" Branded version. It's a Precision Components brand which I believe was sold to smaller phone companies to install with key telephone systems in places where Bell telephone didn't exist But I'm assuming it will still work the same as the Bell branded version.

Do you have the appropriate SLT? You sure can't make this connection modular. You'll never be able to make the 4A work with just any phone.

I can assure you that this is not a 'color-to-color' undertaking. While perfect in quality, these things aren't easy to wire. Without a good amount of Bell System experience, this is going to be a tough one.

This is a dual topic. See the one in 1A2 .

Please just post your topic in one category, if it's not in the correct location a mod will move it for you.