Sometimes I hate your surge suppressors because they work too good/fast
and pop my fuses. But I can live with that.
Now that I think about it, I've never even lost one of yours. I firmly
believe that killing the power ASAP during a surge event (blow fuse,
PacketFlux port tripped, etc) has been the most helpful in stopping
damage to the gear *and* the SS. DC UPS, circuit protection and MTC
suppressors is a very reliable combo IMO.
On 6/10/2016 3:50 PM, [email protected] wrote:
Over the years I have received dozens of photos showing one of my
surge suppressors exploded off the side of a house. Char marks,
melted wires. But the radio and computer were still functional. I
suppose I should have made a concerted effort to save the photos.
When these photos come from Florida, and as some WISPS in Florida
originally requested surge suppression that actually works, I tend to
believe the customers.
-----Original Message----- From: Keefe John
Sent: Friday, June 10, 2016 2:44 PM
To: [email protected]
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
