You are right with the main line of severs. Something to keep in mind is that the PowerRouter's only moving parts are the fans to keep the CPU and Power supply cool . We have DC units now as well. The units run about 85 watts of power normally.
* ----------------------------------------------------------- Dennis Burgess, CCNA, A+, Mikrotik Certified Trainer WISPA Board Member - wispa.org <http://www.wispa.org/> Link Technologies, Inc -- Mikrotik & WISP Support Services WISPA Vendor Member* *Office*: 314-735-0270 *Website*: http://www.linktechs.net <http://www.linktechs.net/> */LIVE On-Line Mikrotik Training/* <http://www.linktechs.net/onlinetraining.asp> The information transmitted (including attachments) is covered by the Electronic Communications Privacy Act, 18 U.S.C. 2510-2521, is intended only for the person(s) or entity/entities to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient(s) is prohibited, If you received this in error, please contact the sender and delete the material from any computer. Scott Reed wrote: > Not only is the power consumption an issue for servers, they are > designed for a office environment. They run best at 68-75F, lots of air > flow. Servers generate a lot of heat. Less if they are "green", but > still a lot compared to other devices. They also have way too many > moving parts. Disk drives and fans are usually the first things to die > because they move. And both are critical to the operation of the server. > I would recommend something without moving parts and designed for DC > operation, though not 12VDC. Probably due to lower current > requirements, I find most gear works better at 24VDC than 12VDC. Car > batteries are still an option, you just put 2 in series for 24VDC. > Though here again, I would use batteries designed for what you are > doing. Car batteries are designed for a high current, short duration > usage, then charge for a while. You need batteries that are designed to > provide low current for a long time and that can be fully discharged > repeatedly without degradation. > > Marlon K. Schafer wrote: > >> I'll tell you what my perfect tower site router would be for this. PC >> based, runs on 12vdc (so we can run everything from car batteries) and has >> gigE ethernet ports by the gross. Then we can route or bridge as needed >> based on the requirements of the distribution radio that's plugged into it. >> >> Lots of processor and memory power this way too! Maybe based on a Dell >> server.... >> >> Am I dreaming? >> marlon >> >> ----- Original Message ----- >> From: "Gino Villarini" <g...@aeronetpr.com> >> To: "WISPA General List" <wireless@wispa.org> >> Sent: Wednesday, March 04, 2009 8:47 AM >> Subject: Re: [WISPA] 100 meg full duplex backhaul >> >> >> >> >>> RB493 limits ports to 100 fdx, If he is going licensed, theradios might >>> be upgraded in the future to higher speeds... >>> >>> I would go RB1000 >>> >>> >>> Gino A. Villarini >>> g...@aeronetpr.com >>> Aeronet Wireless Broadband Corp. >>> tel 787.273.4143 fax 787.273.4145 >>> >>> -----Original Message----- >>> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On >>> Behalf Of Mike Hammett >>> Sent: Wednesday, March 04, 2009 12:36 PM >>> To: WISPA General List >>> Subject: Re: [WISPA] 100 meg full duplex backhaul >>> >>> Mikrotik makes pretty good gear. Depending on traffic, I'd put an >>> RB493AH in there. Should be able to do anything you needed to do >>> without great concern for the weather. >>> >>> >>> ----- >>> Mike Hammett >>> Intelligent Computing Solutions >>> http://www.ics-il.com >>> >>> >>> >>> -------------------------------------------------- >>> From: "Marlon K. Schafer" <o...@odessaoffice.com> >>> Sent: Wednesday, March 04, 2009 10:19 AM >>> To: "WISPA General List" <wireless@wispa.org> >>> Subject: Re: [WISPA] 100 meg full duplex backhaul >>> >>> >>> >>>> Right. I get that part. But I've never used it out here so I don't >>>> know if it's a routing function or a bridging function like spanning >>>> tree. I'm trying to figure out what hardware would be best deployed >>>> at the tower sites. >>>> >>>> Part of what I'm trying to do is get a grip on long term costs. If I >>>> have to run sensitive routers vs. hardened switches it'll make a >>>> >>>> >>> difference. >>> >>> >>>> Adding heat and AC to the towers changes the annual costs quite a bit. >>>> >>>> thanks, >>>> marlon >>>> >>>> ----- Original Message ----- >>>> From: "Mike Hammett" <wispawirel...@ics-il.net> >>>> To: "WISPA General List" <wireless@wispa.org> >>>> Sent: Wednesday, March 04, 2009 7:53 AM >>>> Subject: Re: [WISPA] 100 meg full duplex backhaul >>>> >>>> >>>> >>>> >>>>> OSPF is how you manage load sharing and load balancing. >>>>> >>>>> >>>>> ----- >>>>> Mike Hammett >>>>> Intelligent Computing Solutions >>>>> http://www.ics-il.com >>>>> >>>>> >>>>> >>>>> -------------------------------------------------- >>>>> From: "Marlon K. Schafer" <o...@odessaoffice.com> >>>>> Sent: Wednesday, March 04, 2009 9:36 AM >>>>> To: "WISPA General List" <wireless@wispa.org> >>>>> Subject: Re: [WISPA] 100 meg full duplex backhaul >>>>> >>>>> >>>>> >>>>>> Certainly Jack. I don't know anyone that's built something like >>>>>> this already though. >>>>>> >>>>>> And, it's really not that far off from what we already do. It's >>>>>> just bigger and faster. >>>>>> >>>>>> I've not used the hardware needed for this system so I'm mostly >>>>>> interested in what people would install. I know there are a few >>>>>> people here that have very high speed backbone systems in place. >>>>>> >>>>>> The one part that's got me stumped so far is what to do to create a >>>>>> load sharing load balancing mechanism at the main towers. Should >>>>>> that be done via high end switch or router? >>>>>> >>>>>> If you know someone that would be good help in putting this idea >>>>>> together please feel free to have them contact me. Please note, >>>>>> that nothing will be able to happen at a nut and bolt specific level >>>>>> >>>>>> until construction starts. The program is customer and land >>>>>> acquisition specific, not build it THIS way specific. Did I say >>>>>> that at all clearly? Does it make sense? >>>>>> That is part of why I've not even looked for help yet, there are far >>>>>> >>>>>> more questions than plans in place. Things are still at a >>>>>> conceptual stage, but I'm trying to drill down a bit better. >>>>>> >>>>>> Thanks! >>>>>> marlon >>>>>> >>>>>> ----- Original Message ----- >>>>>> From: Jack Unger >>>>>> To: WISPA General List >>>>>> Sent: Tuesday, March 03, 2009 10:06 PM >>>>>> Subject: Re: [WISPA] 100 meg full duplex backhaul >>>>>> >>>>>> >>>>>> Marlon, >>>>>> >>>>>> Trying to design a complex system like this via a listserve >>>>>> >>>>>> >>> "committee" >>> >>> >>>>>> is more than a little bit risky. Have you considered going to >>>>>> someone who actually has this type of network design experience and >>>>>> paying them to do the whole job right the first time? Just asking. >>>>>> >>>>>> jack >>>>>> >>>>>> >>>>>> Marlon K. Schafer wrote: >>>>>> I don't know if I'll be able to put some many antennas on the >>>>>> >>>>>> >>> towers. >>> >>> >>>>>> How close together would I need the towers to prevent the rain fade >>>>>> outage at 18 gig? >>>>>> >>>>>> Aren't there any 5.8 systems that will do this reliably in the first >>>>>> >>>>>> place? >>>>>> I shouldn't need 5.x for distribution so I could use it all for >>>>>> backhaul. >>>>>> I'll have 2.4, 3.65, 4.9 and hopefully, someday, TVBD for the >>>>>> >>>>>> >>> consumers. >>> >>> >>>>>> marlon >>>>>> >>>>>> ----- Original Message ----- >>>>>> From: "Brian Webster" <bwebs...@wirelessmapping.com> >>>>>> To: "WISPA General List" <wireless@wispa.org> >>>>>> Sent: Tuesday, March 03, 2009 9:44 PM >>>>>> Subject: Re: [WISPA] 100 meg full duplex backhaul >>>>>> >>>>>> >>>>>> The 5.8 GHz backup links will help you deal with outages due to >>>>>> environmental conditions such as rain fade. That has to be factored >>>>>> in for links when you operate above 10 GHz. Even if you run a loop >>>>>> configuration you could have a fade condition that could block out a >>>>>> >>>>>> whole tower site severing your links to that location in both >>>>>> directions of your loop. >>>>>> Another path at a lower frequency with spatial diversity from your >>>>>> primary link (different mounting heights) would at least keep that >>>>>> site up though maybe not at full speed. >>>>>> >>>>>> >>>>>> >>>>>> Thank You, >>>>>> Brian Webster >>>>>> >>>>>> -----Original Message----- >>>>>> From: wireless-boun...@wispa.org >>>>>> [mailto:wireless-boun...@wispa.org]on >>>>>> Behalf Of Marlon K. Schafer >>>>>> Sent: Wednesday, March 04, 2009 12:26 AM >>>>>> To: WISPA General List >>>>>> Subject: Re: [WISPA] 100 meg full duplex backhaul >>>>>> >>>>>> >>>>>> Thanks. >>>>>> >>>>>> Do you think we need the unlicensed for each hop if the entire >>>>>> network is build in a circle? >>>>>> marlon >>>>>> >>>>>> ----- Original Message ----- >>>>>> From: "Travis Johnson" <t...@ida.net> >>>>>> To: "WISPA General List" <wireless@wispa.org> >>>>>> Sent: Tuesday, March 03, 2009 9:12 PM >>>>>> Subject: Re: [WISPA] 100 meg full duplex backhaul >>>>>> >>>>>> >>>>>> Licensed 18ghz links with 5.8ghz backup links for each hop. >>>>>> Figure $15,000 per link for everything. >>>>>> >>>>>> Travis >>>>>> Microserv >>>>>> >>>>>> Marlon K. Schafer wrote: >>>>>> Hi All, >>>>>> >>>>>> I'm looking for some gear that'll be rock solid at 15 to 20 miles. >>>>>> Some links may be less, but I'm not counting on that. >>>>>> >>>>>> I'll be hauling public safety, private vpns, and normal internet >>>>>> traffic. >>>>>> >>>>>> I'll probably have around 20 towers, all linked in a ring. I can >>>>>> load share across the ring as long as speeds never drop below >>>>>> 100megs. I'll want things to be automatically self healing if there >>>>>> >>>>>> is a loss of connectivity in any direction. >>>>>> >>>>>> What would you guys use/suggest? >>>>>> >>>>>> I'd love to go licensed (but no 6 gig due to antenna sizes) but >>>>>> unlicensed may be OK due to the failover capabilities. >>>>>> >>>>>> We have to worry about snow, fog and, worst of all, dust storms. >>>>>> >>>>>> What gear would you use? How would you set this up? >>>>>> >>>>>> I'm in the pricing stage so off list quotes etc. are welcome. Pall >>>>>> park numbers are fine at this time, as long as they tend to run high >>>>>> >>>>>> vs. low, I'd rather over estimate the costs. >>>>>> >>>>>> thanks, >>>>>> marlon >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>> ------------------------------------------------------------------------ >>> - >>> >>> >>>>>> ------- >>>>>> WISPA Wants You! Join today! >>>>>> http://signup.wispa.org/ >>>>>> >>>>>> >>>>>> >>> ------------------------------------------------------------------------ >>> - >>> >>> >>>>>> ------- >>>>>> WISPA Wireless List: wireless@wispa.org >>>>>> >>>>>> Subscribe/Unsubscribe: >>>>>> http://lists.wispa.org/mailman/listinfo/wireless >>>>>> >>>>>> Archives: http://lists.wispa.org/pipermail/wireless/ >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>> ------------------------------------------------------------------------ >>> -- >>> >>> >>>>>> ------ >>>>>> WISPA Wants You! 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