Still need surge suppression on the power wire powering that SFP radio.
On 6/10/2016 4:09 PM, Josh Luthman wrote:
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]
<mailto:[email protected]>> wrote:
Data surge suppressors aren't necessary on fiber systems. :-)
-----
Mike Hammett
Intelligent Computing Solutions <http://www.ics-il.com/>
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------------------------------------------------------------------------
*From: *"Keefe John" <[email protected]
<mailto:[email protected]>>
*To: *[email protected] <mailto:[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] <mailto:[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] <mailto:[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] <mailto:[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
>>
>
