[c-nsp] T3 with unavailable seconds but no errors

[Justin M. Streiner]

> New problem on a circuit that's been in service for 4 years. Cabling is
> not easily addressed since the router and the demarc are not in the same
> place. Would the cable length setting be a factor? I thought it really
> only mattered if it was over 450 feet, and otherwise didn't need to be
> especially accurate.

It doesn't need to be accurate down to the millimeter, but too short of a 
cable can be a problem unless you use some type of inline attenuator or 
reset the line buildout on the DSU.  Some equipment doesn't like a 'hot' 
signal and errors can result from that.

jms