I apologize to any female electrical engineers on the list for my choice of the pronoun he. I was not consciously thinking of a man when I wrote it. The nuns used to punish me if I didn’t use pronouns this way. Old habits are hard to break.
From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Chuck Enfield Sent: Friday, August 07, 2015 4:58 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Outdoor PoE PS – if you ask a “qualified electrical engineer” a grounding question and don’t like his answer, ask a different one and you’ll get a different answer. Fish around until somebody tells you what you want to hear, then stop. It works without fail. From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Chuck Enfield Sent: Friday, August 07, 2015 4:52 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Outdoor PoE Sound advice, but I don’t think it’s practical or necessary to do that on a case-by case basis. A system should be evaluate and approved for efficacy and safety over a specified range of conditions so that you can use it over and over. This is what we’ve done for decades in the case of OSP telephone cabling. I can’t see why every outdoor camera or AP would need to be a one-off. From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Jeffrey D. Sessler Sent: Friday, August 07, 2015 4:43 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Outdoor PoE Sure, as long at the $88 SPD (surge protection device) actually does what is says it’s going to do , is installed correctly, and doesn’t in itself violate some other code requirement. It’s not an insurance policy If it’s not terminated to a properly sized earth ground or doesn’t comply with the IEEE Lightning protection zone requirements. The latter is especially important for 802.3at (PoE+) Applications. Thus my recommendation to always consult with a qualified electrical engineer on such matters. Jeff From: "wireless-lan@listserv.educause.edu <mailto:wireless-lan@listserv.educause.edu> " on behalf of Hector J Rios Reply-To: "wireless-lan@listserv.educause.edu <mailto:wireless-lan@listserv.educause.edu> " Date: Friday, August 7, 2015 at 8:16 AM To: "wireless-lan@listserv.educause.edu <mailto:wireless-lan@listserv.educause.edu> " Subject: Re: [WIRELESS-LAN] Outdoor PoE Sounds like a risky proposition. ~ $88.00 for peace of mind is not that bad of an insurance policy. -H From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Jeffrey D. Sessler Sent: Friday, August 07, 2015 10:06 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU <mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: Re: [WIRELESS-LAN] Outdoor PoE If one is following electrical codes/best practices, are these devices needed? That is, externally mounted ethernet devices such as cameras and access points as supposed to be using STP and not UTP cable (providing a solid path to ground). The camera/ap should be grounded at it’s mount point and on the PSE side (switch, injector, etc.), In the case of a switch, it should have a separate ground lug that’s tied into a ground bus-bar. I suspect If you follow the above, these additional devices may not be required. And if the above isn’t being followed, it may be a good idea to chat with an electrical engineer just to make sure your not installing a bunch of potentially deadly lightning rods. :) Jeff From: "wireless-lan@listserv.educause.edu <mailto:wireless-lan@listserv.educause.edu> " on behalf of Thomas Carter Reply-To: "wireless-lan@listserv.educause.edu <mailto:wireless-lan@listserv.educause.edu> " Date: Friday, August 7, 2015 at 6:23 AM To: "wireless-lan@listserv.educause.edu <mailto:wireless-lan@listserv.educause.edu> " Subject: Re: [WIRELESS-LAN] Outdoor PoE We haven’t had any problems, but we’ve used these: http://www.l-com.com/surge-protector-outdoor-10-100-1000-base-t-cat6-poe-compatible-lightning-protector-rj45-jacks with great success. They also have a punch down version as well if you want to mess with that. We have them mounted outside with the APs and a good copper ground wire. If you haven’t looked at them, l-com.com has a wide array of antennas, cabling, etc. No connection to them, just a happy customer. Thomas From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Hector J Rios Sent: Thursday, August 6, 2015 8:24 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU <mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: [WIRELESS-LAN] Outdoor PoE For those doing outdoor wireless, here are two products we have purchased that we have found very useful: <https://www.amazon.com/gp/product/B00NMU85PM/ref=od_aui_detailpages00?ie=UTF8&psc=1>Microsemi Outdoor PoE Surge Protector PD-OUT/SP11http://www.newegg.com/Product/Product.aspx?Item=17B-00A5-00001<http://www.newegg.com/Product/Product.aspx?Item=17B-00A5-00001&nm_mc=KNC-GoogleAdwords-PC&cm_mmc=KNC-GoogleAdwords-PC-_-pla-_-Surveillance+Accessories-_-17B-00A5-00001&gclid=CIOKgobGlMcCFQmNaQodJ_0C0Q&gclsrc=aw.ds>&nm_mc=KNC-GoogleAdwords-PC&cm_mmc=KNC-GoogleAdwords-PC-_-pla-_-Surveillance+Accessories-_-17B-00A5-00001&gclid=CIOKgobGlMcCFQmNaQodJ_0C0Q&gclsrc=aw.dsMicrosemi PowerDsine 9001GO - PoE injector - 30 Watthttp://www.cdw.com/shop/products/Microsemi-PowerDsine-9001GO-PoE-injector-30-Watt/2578417.aspx?cm_cat=GoogleBase<http://www.cdw.com/shop/products/Microsemi-PowerDsine-9001GO-PoE-injector-30-Watt/2578417.aspx?cm_cat=GoogleBase&cm_ite=2578417&cm_pla=NA-NA-PWD_NE&cm_ven=ShoppingFeeds&ef_id=VLgjcQAABAHVQD8U:20150806132234:s&gclid=CKyxxczGlMcCFQgtaQodCO8PhQ>&cm_ite=2578417&cm_pla=NA-NA-PWD_NE&cm_ven=ShoppingFeeds&ef_id=VLgjcQAABAHVQD8U:20150806132234:s&gclid=CKyxxczGlMcCFQgtaQodCO8PhQRegards,Hector RiosLouisiana State University********** Participation and subscription information for this EDUCAUSEConstituent Group discussion list can be found athttp://www.educause.edu/groups/.********** Participation and subscription information for this EDUCAUSEConstituent Group discussion list can be found athttp://www.educause.edu/groups/.********** Participation and subscription information for this EDUCAUSEConstituent Group discussion list can be found athttp://www.educause.edu/groups/.********** Participation and subscription information for this EDUCAUSEConstituent Group discussion list can be found athttp://www.educause.edu/groups/.********** Participation and subscription information for this EDUCAUSEConstituent Group discussion list can be found athttp://www.educause.edu/groups/.********** Participation and subscription information for this EDUCAUSEConstituent Group discussion list can be found athttp://www.educause.edu/groups/.********** Participation and subscription information for this EDUCAUSEConstituent Group discussion list can be found athttp://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
