atcomsystems.ca/forum Forums TDM Business Telephone Systems Panasonic Telephones & Systems KX-T7775 Door phone / 824 / 82461

Hi folks,

Going to be installing the doorphone soon.
Need a little help with regards to wiring it up:

I do not have a pqjs1t30za-e module indicated on the manual which is to be wired up from the power module in line to the modular jack on the door phone card.

Hopefully I do not require the module. If not can someone help out with the pin polarity?-

Pins 3 and 4 from the power module goto which pins respectively on the doorphone card?

Cheers!

To add, just one doorphone, no opener.

You don't say which system. I don't recognize that doorphone model, but if it's like the KX-T30865 which works on many Pan systems, it requires only one pair. The other stuff you mention would only be necessary to drive a door opener. Look carefully at your manuals, and it should be clear. All you should need is the doorphone adaptor and the doorphone. Polarity (T/R) doesn't matter. Hope this gives some cheer. :toast:

The newer model door phones (high end ) use a power supply and a module at the MDF. They are polarity sensitive. The pin outs are in the book of whatever system you are using.

Hi TAC Bob.
Systems in the subject line:
(TA824 w 82461 door phone card).

Hi brokeda,
Yes the pin outs are in the book but not for the wire that goes from the pqjs1t30za-e module to the door phone modular jack. I do not have the pqjs1t30za-e module, it was not supplied. Page 7 on the KX-T7775 manual is the one I am referring to.

All the pqjs1t30za-e module looks like is a splice block into a standard 4 wire jack which plugs into one port on the doorphone card. This is my issue, I do not know where pins 1 and 2 on the pqjs1t30za-e link to the pins on the modular jack on the doorphone.

That part number is a 2 position modular surface mount jack. The cord comes in the box. The cord has the right polarity. You can use page 5 if only 1 door phone.
the jack on the power module plugs into the door phone card. The screws go to the door box speaker.

Hi brokeda,

I really appreciate your help
Page 5 says refer to pages 6-8 for pinouts!!!!

It's kind of a weird setup. i got hung up several times with the polarity issue as I would make a short custom line cord, then no workee.
These also have a connection to make the house door bell work at the same time.

Yeah I feel a fool asking lol, but I wanted to make sure.
Can I break something if I get it wrong?
All I need to know is ewith 1x door phone, pins 2 and 3 go to which pins on port 1 on the door phone?