atcomsystems.ca/forum Forums TDM Business Telephone Systems Nortel Telephones & Systems opx distance

Whoa, back up here, you are telling us that you have an ATA going 7 km, about 4 miles, without any LEC amplification, on a dry pair?

24 volts DC going 7 km with no amplification?

I believe in miracles, but we are talking about 24 volts here.

bartel, TVOSNA is an OPX circuit and it's not dry. They have repeaters.

Oh thank you, I thought the end of the earth would come when physically impossible things happened, now I got a little longer to live.

You saved my life telemarv, thanks, Bunnie

It's rare, in fact it's nearly impossible to get a true dry pair around here. Even across the street still must be ordered as an OPX anymore. We usually have to just wait for the installer to show up and explain it to them to see if they will do it.

This means that it's a conditioned pair back to the CO frame and then back out to the other end via another conditioned pair. Many times this involves channels in SLC or pair gain equipment. The reason for this, according to Verizon, is "to provide their staff with the ability to test the circuit both ways from the middle for troubleshooting purposes". I think it's more of a way for them to disconnect the circuit for non-payment without a truck roll.

We used to be able to lease dry pairs locally within an F2 count, but we had to lease 25 pairs at a time. I haven't seen that done in at least ten years though.

Actually it's so they can charge more. It is mileage based!