Is this the surge suppressor resistance the OP referred to? From: Josh Luthman Sent: Friday, June 10, 2016 4:09 PM To: [email protected] Subject: Re: [AFMUG] Surge Suppressors
Such as an SFP Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Jun 10, 2016 5:08 PM, "Mike Hammett" <[email protected]> wrote: Data surge suppressors aren't necessary on fiber systems. :-) ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP ------------------------------------------------------------------------------ From: "Keefe John" <[email protected]> To: [email protected] Sent: Friday, June 10, 2016 3:44:50 PM Subject: Re: [AFMUG] Surge Suppressors Interesting. What do you say to the people who claim surge suppressors are just not necessary? On 6/10/2016 3:15 PM, [email protected] wrote: > Talking CAT5 and not RF so not a huge issue. The bigger problem is > near end cross talk (NEXT) problems when the surge suppressor is very > close to a device like a switch or radio. There is SNR on GIGE but > normally return loss, FEXT, NEXT and things like that are more of a > problem. > > -----Original Message----- From: Keefe John > Sent: Friday, June 10, 2016 2:07 PM > To: [email protected] > Subject: Re: [AFMUG] Surge Suppressors > > What about insertion loss causing cables to have SNR issues? > > > On 6/10/2016 2:49 PM, [email protected] wrote: >> They don't add resistance. (Actually Cambium's suppressor does add >> about 7.2K ohm load on each pair but it should not hurt). >> They do add a minor amount of capacitance, equivalent to perhaps a >> foot of CAT 5 cable. >> >> >> -----Original Message----- From: Keefe John >> Sent: Friday, June 10, 2016 1:42 PM >> To: Animal Farm >> Subject: [AFMUG] Surge Suppressors >> >> Someone recently told me we shouldn't use surge suppressors on towers >> because they add too much resistance. What would you say about that >> Chuck? >> >> Right now we use GIGESS-HV within 3' of the radio on the tower and >> GIGEAPC-HV at the tower base. >> >> Keefe >> >
