In TELECOM Digest V25 #10, Eli Tomlinson wrote (in part):
I suggest that you first check all of the fundamental signal fault sources: cable and connection problems, radiated/induced interference, CSU settings and performance, and synchronization settings are the ones I would check for intermittent problems.
Make sure you don't have any loose or contaminated connections. Bounce plugs, check for foreign material (water, oil, spilled beverage, etc.), check cable integrity and dress, and recheck crimp and solder connections if necessary.
Make sure cables and equipment are adequately separated from RFI/EMI sources (radio equipment, electric motors, contactors, HID lighting ballasts, static charge producers) and are properly grounded and bonded.
Verify that CSU settings are correct, including buffer characteristics and verify that signal compensation or "line build-out" [LBO] settings are correct for cable lengths and equipment placement. Swap out the CSU, if possible, to see if that corrects the problem.
Make sure the BCM is set up to accept clocking from Verizon via the PRI, and make sure the CSU passes this clocking through, rather than conforming the signal to its own internal clocking.
Offer them enough money, and they'll find the resources. They won't put much effort into it until they understand that you'll be willing to pay for it -- if you are indeed willing.
I can probably put you in touch with someone who can help you, but you'll be looking at a minimum cost of $700 to $1000. Why don't you check the items I've suggested and see if you still need a consultant. If you do, you can contact me directly, and I'll find a match for you.
Paul A Lee Sr Telecom Engineer Rite Aid Corporation WP-IS-COM (Telecomm) V: +1 717 791-6408
5280 Simpson Ferry Rd, Mechanicsburg, PA 17050 F: +1 717 791-6406 P.O. Box 3165, Harrisburg, PA 17105-3165 C: +1 717 805-6208