Going with glass will also enable you to either multiplex multiple gige lines across the pair or go to a faster (e.g. 10GE) interface if needed. I don't hardly ever play in the medical space but my (very) limited experience is that these medical imaging applications need serious connectivity.
Thanks, Brian Desmond [email protected] c - 312.731.3132 -----Original Message----- From: Eldridge, Dave [mailto:[email protected]] Sent: Wednesday, April 07, 2010 5:33 AM To: NT System Admin Issues Subject: RE: question on cat-6 and 480V together I forgot to mention this group is asking for a gigabit connection to this MRI machine. I've already set in motion to see about pulling fiber to this trailer. -----Original Message----- From: Steven M. Caesare [mailto:[email protected]] Sent: Wednesday, April 07, 2010 6:30 AM To: NT System Admin Issues Subject: RE: question on cat-6 and 480V together It's actually the opposite. If at all possible, try to cross electrical cables, and signal cables (including UTP) at right angles. The magnetic lines of flux induce more signal noise on parallel conductors than it does perpendicular conductors. Now, a CAT 5/6 cable running on top of fluorescent fixtures... all bets are probably off. The wiring and ballasts inside those could be oriented all over the map. -sc > -----Original Message----- > From: David W. McSpadden [mailto:[email protected]] > Sent: Wednesday, April 07, 2010 8:26 AM > To: NT System Admin Issues > Subject: RE: question on cat-6 and 480V together > > I thought the actually problem with electrical currents and network cable was > (Pun intended) crossing the streams. What I mean to say is that as long as > you run the cables parallel to each other throughout the line the affect is > very minimal with regards to depreciated signal strength but if you were to > wrap one are the other or cross them the electric current would act as a > magnetic and suck the signal out of the cable.... > This is very tricky stuff you are wanting to try but I think that you could pull it > off but test it first. You may have to run your cable the full 18 inches apart > from electrical... > > > -----Original Message----- > From: Eldridge, Dave [mailto:[email protected]] > Sent: Wednesday, April 07, 2010 8:18 AM > To: NT System Admin Issues > Subject: RE: question on cat-6 and 480V together > > I know it's amazing it might just work fine. :) Lucky I do have an excellent > cable guy that is also researching this. We will have shielded, outdoor rated > cat6E with some sort of lightning protection. This will be extended thru > May/June and this is Colorado. I will looking into separation even by a few > inches. > > -----Original Message----- > From: Raper, Jonathan - Eagle [mailto:[email protected]] > Sent: Wednesday, April 07, 2010 6:12 AM > To: NT System Admin Issues > Subject: RE: question on cat-6 and 480V together > > Not best practice, but how many of our cable installations actually are > installed according to best practice? I've had to get on cabling cntractors for > laying cable directly on top of a 277v fluorescent fixture... *sigh* (I got a new > cabling contractor!) > > I've never tried what you're being asked to do, but here are my thoughts... > > As for your specific situation, it may work just fine. Ideally you'd want to have > them separated by at least several inches, if possible. I'd probably specify > shielded Cat6, outdoor rated cable to be on the safe side. Also, there may be > a specific cable type for suspended cable runs. > Finally, I'd consider lightning protection on both ends once inside the > building, in order to protect your equipment. > > Jonathan L. Raper, MCSE > > Sent from my Windows Mobile (r) enabled Smartphone. Please excuse > brevity & any misspellings. > > ________________________________ > From: Eldridge, Dave <[email protected]> > Sent: Wednesday, April 07, 2010 7:55 AM > To: NT System Admin Issues <[email protected]> > Subject: OT: question on cat-6 and 480V together > > I am being told that one of our MRI machines is temporarily moving to a > trailer out on the street and they want to pull overhead a cat-6 and 3phase > 480V together. Way out of my league. Anyone see any noise issues with > these tied together? Anything else I'm missing? > thanks > > > This e-mail contains the thoughts and opinions of the sender and does not > represent official Parkview Medical Center policy. > > This communication is intended only for the recipient(s) named above, may > be confidential and/or legally privileged: and, must be treated as such in > accordance with state and federal laws. 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