Yeah, and the Trango heater solution sucked bigly.
Other than our long departed SmartBridges stuff, everything actually seems to run better in winter. The microwave equipment is fine in the cold, and we have a lot less RF path problems than in summer with all the stupid crop related issues like multipath, and trees growing into the path. You can also see a long ways in the crisp cool air, unlike in summer with the heat waves in the air, what I call “bad air”. From: AF <af-boun...@af.afmug.com> On Behalf Of ch...@wbmfg.com Sent: Thursday, October 15, 2020 2:18 PM To: af@af.afmug.com Subject: Re: [AFMUG] Cold-weather Ethernet isolation (electrical / ground) Was it Trango... yeah I think it was Trango that had a heater for some of the components on their SMs.... That is one way around it. From: Adam Moffett Sent: Thursday, October 15, 2020 1:12 PM To: af@af.afmug.com <mailto:af@af.afmug.com> Subject: Re: [AFMUG] Cold-weather Ethernet isolation (electrical / ground) Interesting. The JDSU industrial temp SFP's are like $200+ Makes me wonder if one of them is robbing me or is the other one bullshitting me. On 10/15/2020 3:07 PM, Ken Hohhof wrote: FS sells a bazillion different SFPs. What is the spec temp range on the ones you got? Someone else pointed me to these: https://www.fs.com/products/12622.html -30 is pretty cold, not sure if that’s F or C. Of course at -40 they’re the same. You’d expect if you have them plugged into a switch there would be some heating and the SFP wouldn’t be as cold as the outdoor temp. From: AF <mailto:af-boun...@af.afmug.com> <af-boun...@af.afmug.com> On Behalf Of ch...@wbmfg.com <mailto:ch...@wbmfg.com> Sent: Thursday, October 15, 2020 12:49 PM To: af@af.afmug.com <mailto:af@af.afmug.com> Subject: Re: [AFMUG] Cold-weather Ethernet isolation (electrical / ground) When I was designing for Carlson, we discovered cold is always the enemy, not heat. From: Bill Prince Sent: Thursday, October 15, 2020 11:45 AM To: af@af.afmug.com <mailto:af@af.afmug.com> Subject: Re: [AFMUG] Cold-weather Ethernet isolation (electrical / ground) Run fiber. Goes farther, does not conduct. bp <part15sbs{at}gmail{dot}com> On 10/15/2020 10:12 AM, Colin Stanners wrote: We have a rural tower site where the owner has a few houses on the property, they ran conduit and cat5e between the houses and the tower so the houses could get Internet access. But.... with the size of the property and the tower being a big metal structure, that caused some voltage / ground imbalances that fried gear at the houses after storms, I believe even through surge supressors (hich are made to protect against single high-voltage direct strikes). We put in some electrical isolation using copper-fiber-copper converters / switches at the tower, those worked until the winter: when it got to -30 outside the FiberStore SFPs were unhappy. Does anyone have good cold-weather solutions? Or were we just unlucky with those SFPs and should try something else in the cold? _____ -- AF mailing list AF@af.afmug.com <mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com _____ -- AF mailing list AF@af.afmug.com <mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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