Hi Mike, Yes, the OPS-DC could take your 24VDC source and power any of our VL radios. It has a DC to DC converter that provides the properly formed 55VDC component to run the VL radio.
You would not need a 24V POE injector. The OPS-DC is the injector. Eric Albert Application Engineer Alvarion, Inc. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Hammett Sent: Wednesday, November 14, 2007 4:26 PM To: WISPA General List Subject: Re: [WISPA] Which UPS to use? If the system is 24 vDC and I need 24 vDC for my equipment, could I tap off of it at the batteries for the 24 vDC gear? ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com ----- Original Message ----- From: Travis Johnson To: WISPA General List Sent: Tuesday, November 13, 2007 9:53 AM Subject: Re: [WISPA] Which UPS to use? Hi, Again, you need to be careful... the charging unit in the smaller UPS systems (700, 1000, 1400) is not designed to run for 3-4 days to charge up 10 batteries that were drained from an outage. You will burn up the UPS. I would not recommend more than 4 external batteries on any small UPS. Travis Microserv Mark Nash wrote: Hooked up properly, you should be able to put in as many as you want/have space for. Can anyone share how to hook up batteries in parallel vs. series? Also, once you put in the SNMP card, you can tell it how many external batteries you have. This is a way of estimating how much runtime you will have. It's not accurate, because you're using different batteries than it expects. For 2 batteries, I enter in 4 external batteries for this value. It is as close as I've found you can get it. Mark Nash UnwiredOnline.Net 350 Holly Street Junction City, OR 97448 http://www.uwol.net 541-998-5555 541-998-5599 fax ----- Original Message ----- From: "George Rogato" <[EMAIL PROTECTED]> To: "WISPA General List" <[email protected]> Sent: Tuesday, November 13, 2007 7:32 AM Subject: Re: [WISPA] Which UPS to use? Thanks for the advice. I'm going to try one. I'm wondering how many batteries I can gang together using the ups you mentioned. George Mark Nash wrote: UPS - $45 on ebay (buy one without batteries) SNMP card - $125 on ebay 2 batteries & 2 outdoor battery compartments: $150-$175 (more, depending on battery quality). I get mine at Bimart. misc connectors & wire $20 I had one site up for 36 hours with Trango Tlink, small switch, and Tranzeo AP. I thnk that's best-case-scenario. Mark Nash UnwiredOnline 350 Holly Street Junction City, OR 97448 http://www.uwol.net 541-998-5555 541-998-5599 fax ----- Original Message ----- From: "George Rogato" <[EMAIL PROTECTED]> To: "WISPA General List" <[email protected]> Sent: Monday, November 12, 2007 2:32 PM Subject: Re: [WISPA] Which UPS to use? Not sure how much I need really. It's the downtime. This one pop has a trango, a wrap a metro and a cheap switch. Usually when it looses power it could be 24 hours or more. With your set up, how much do you pay including the 2 rv batteries and how long have you had for a power outage? I just ordered one of the cheapo generics for my house to check out. But generic usually leaves that feeling of uncertainty that makes me uneasy. Mark Nash wrote: George, are you really needing that much? 3KVA? Or is it the higher battery capacity you're wanting? I buy used APC Smart-UPS SU700NET from ebay, without batteries. Then I buy a couple RV batteries and hook them up (outside the enclosure, of course). I put in a AP9617 SNMP device and it gives me a little remote control w/e-mail notification. Doesn't do everything I want (PDU-ability to power off each receptacle individually, watchdog). On a remote site, it'll give anywhere from 12-24 hours depending on load & whatchya got out there... Mark Nash UnwiredOnline.Net 350 Holly Street Junction City, OR 97448 http://www.uwol.net 541-998-5555 541-998-5599 fax ----- Original Message ----- From: "George Rogato" <[EMAIL PROTECTED]> To: "WISPA General List" <[email protected]> Sent: Monday, November 12, 2007 11:27 AM Subject: [WISPA] Which UPS to use? I need to buy a few ups's for some remote pops. I was looking at APC and the place I buy stuff from had these: http://www.pacificgeek.com/product.asp?ID=52353&C=216&S=-1 Is this worth buying, or should I go with APC at twice the price? http://www.apcc.com/resource/include/techspec_index.cfm?base_sku=SUA3000 -- George Rogato Welcome to WISPA www.wispa.org http://signup.wispa.org/ ----------------------------------------------------------------------- --- ------ WISPA Wants You! 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