The guy who does my telephone wiring and installs lots of network
cabling asked me whether I had considered ground loops.
Hmmm, lessee, 16 RS232 cables between one PM and one MP/16 makes for
16 signal ground connections. The POP that does have the problem is
my base POP where all the computers are, so there's lots of RF flying
around, so ...
Can anybody tell me if the signal grounds are common pathways at RF?
Boy, I'd sure think so, but I'm a hardware dimwit. I'd really like to
hear what any of the hardware guys at Livingston might have to say
about this, since they know the internals of their gear.
The no-answer problem *was* much worse in the past when I used flat
RJ45 cables. Switching to cat3 cables vastly improved things. Going
from cat3 to cat5 made no detectable difference, nor did putting Amp
shielded cables on the most troublesome lines, so I figured using the
twisted cables had solved the pickup problem - and it should, I think,
for pickup within a given cable. However, ground loops would be
inter-cable pickup ... or am I just mumbling?
I need some straws to grasp at.
-- Dick St.Peters, Gatekeeper, Pearly Gateway, Ballston Spa, NY stpeters@NetHeaven.com Owner, NetHeaven 518-885-1295/800-910-6671 Albany/Saratoga/Glens Falls/North Creek/Lake Placid/Blue Mountain Lake First Internet service based in the 518 area code