You put + and – on the 4/5 pair and also on the 7/8 pair rather than both neg on 4/5 and both positive on 7/8.
From: Eric Muehleisen Sent: Tuesday, April 21, 2015 1:31 PM To: [email protected] Subject: Re: [AFMUG] CAT5 crosstalk on tower legs That's it! It's coming back to me now. This is affecting only Canopy APs with sync over power going into a CTM2. What would be the best wiring or pin out method in this case? On Tuesday, April 21, 2015, Chuck McCown <[email protected]> wrote: LMG discovered this about 10 years ago or whenever their first sync product came out. The fix was the balanced sync over power wiring schema. From: Ken Hohhof Sent: Tuesday, April 21, 2015 1:24 PM To: javascript:_e(%7B%7D,'cvml','[email protected]'); Subject: Re: [AFMUG] CAT5 crosstalk on tower legs The thread about Cat5 ziptied to tower legs probably involved sync over power and surge protectors. From: Josh Luthman Sent: Tuesday, April 21, 2015 2:12 PM To: javascript:_e(%7B%7D,'cvml','[email protected]'); Subject: Re: [AFMUG] CAT5 crosstalk on tower legs Damn near every tall tower I've done straight up the legs and zip tied right onto the legs. Grab shielded cabling and do it again, I bet you have water in the line. Double check your connectors at the bottom for corrosion or water. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Tue, Apr 21, 2015 at 3:05 PM, Eric Muehleisen <javascript:_e(%7B%7D,'cvml','[email protected]');> wrote: A while back there was a thread about issues running CAT5 cables along the entire length of solid steel tower legs. We've run into a problem where we can't run 100baseT reliably on a couple APs. CRC errors will go away if we force the switch port to 10baseT. Interestingly enough, packet loss amplifies when it rains. Any help would be appreciated. -- Sent via mobile -- Sent via mobile
