I do this all the time with "Cartell" systems. I use a homemade ring generator made out of scrap stuff. I'm fond of using a cheap 120v to 12v transformer (like from Radio Shack) backwards.....then I power the setup (through the NO contacts of the Cartell, or a pushbutton) with some sort of current limited 120v to 6-8v transformer. The old Princess and Trimline transformers we all find all the time disconnected in basements work GREAT!!!
The KSU doesn't seem to be frequency sensitive, and the 80 volts or so of low current 60HZ AC rings up the CO port just fine. I usually set distinctive ringing for the doorbell or Cartell port so they know it's not an incoming call. FWIW, using a doorphone card and just giving a short to the doorbox pair (with an UNLIGHTED) button is another way.... Jim Schultz Schultz Communications ----- Original Message ----- From: "Chris Fowler" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, September 30, 2003 12:44 PM Subject: KX-T: Simple Door Bell Interface > Hi, > > Does anyone have suggestions on how to make an unused KX-TD816 CO Port > "ring" for 15 seconds when a simple door bell button is pushed? > > Thanks, > Chris. > > > _________________________________________________________________ > KX-T Mailing list --- http://kxthelp.com/ > Subscription changes: http://kxthelp.com/mailman/listinfo/kxt _________________________________________________________________ KX-T Mailing list --- http://kxthelp.com/ Subscription changes: http://kxthelp.com/mailman/listinfo/kxt
