Phones in those countries use 3 wires, Tip, Ring and ringer. The other side of the ringer is connected to either Tip or Ring in the phone. Over here that cap you see would be in the phone which is why we use 2 wires. R1 I believe is across T&R and I see a MOV surge suppressor.
I'm not sure if I’ve seen the Krone connection blocks before.
Verizon has been using 25 pair Krone blocks for RJ-21X demarcs for many years. I actually keep them in stock for when Verizon doesn't provide them. They also have test contacts built in that allows a test cord to open the block so that you can see if the problem is on the subscriber side or the OSP side without disconecting any wiring.
As a side note, the new Krone blocks can be terminated with a 110 blade as well as a Krone blade. Problem is if you don't know what new is always use the Krone blade to avoid damage.
-Hal
Last edited by hbiss; 01/03/08 06:24 PM.
