[GreenKeys] O/T - 24v to 48v POTS Telco converter for added ring?

[E.]

Hey John,

This is it (below).  I just realized that there is so much more to this box than they had in the manual in the actual box - but I’ve got to head to bed… I’ll check for replies back when I wake up :) :

https://digitone.com/manuals/DPCB-Full-Manual.pdf

When I called the company yesterday now, he hooked up a Western Electric on his bench and it rang, so who knows.  I’ve read that Automatic Electrics many times can have frequency ringers for party lines... so man, if that’s the case, where do I go from there xD ??!

…..


> On Jul 30, 2021, at 6:01 am, John W9DDD <w9ddd at tapr.org> wrote:
> 
> Do you have a link for the phone blocker?  
> 
> I don't think the 24 volts is the problem, unless it can't supply 25 or so ma.  48 volts is used to overcome the loop resistance on mile(s) long lines.  The booster would seem to me to just add another level of problem, not passing dial pules either.
> 
> If the blocker is regenerating the ring voltage rather than passing it through, it probably doesn't have the 'juice' to drive an old fashioned mechanical ringer. 
> 
> John, W9DDD