That was my assumption. I wasn't sure if embedded would be cheaper or not to put on the boards. Having more memory doesn't hurt either. I do like the idea of picking my own memory.
I assume running on board memory generates less heat than an microSD slot? On May 18, 2015 11:35 PM, "Forrest Christian (List Account)" < [email protected]> wrote: > There are solutions, it just comes down to bits per dollar. > > A SD card + socket probably costs around $5-6 to implement, including > card. For that you get around 4GB (4096MB) or so. Plus if you're picky > about the brand you can get a card with built-in wear leveling, etc, so you > don't have to worry about that stuff. But you have the temperature issue. > > For the same price, you only get 32MB (0.032GB) of soldered in memory. > Would 32MB be enough? Probably, but there are a *lot* of things you can do > if you have seemingly unlimited storage. > > On Mon, May 18, 2015 at 8:33 PM, Vince West <[email protected]> wrote: > >> Is there no solution for embedded memory instead of a card slot? I am >> assuming it is cost prohibitive or it does not work for your project. >> >> That being said there have been days in the winter where we see -5° for >> days in a row. It doesn't happen often. Even with heat generated from >> equipment, I am not sure how well it would work or how long it would last >> being so close to the limit for extended periods of time. >> On May 18, 2015 10:23 PM, "Jeremy" <[email protected]> wrote: >> >>> The coldest that I saw INSIDE our enclosures this year (accordint to >>> SiteMonitor internal temperature) was 0-C (32-F). Last year was much >>> colder but back then I was using the APC for temperature and backup, and >>> that graph data has all been deleted. I can't say for sure if the >>> temperature in the box was lower, but I doubt it would go too far below 32 >>> with all the equipment and batteries in the boxes. >>> >>> On Mon, May 18, 2015 at 8:14 PM, Adam Moffett <[email protected]> >>> wrote: >>> >>>> Wouldn't the simple answer be to offer the device and SD card as >>>> separate items? Then on your site you say, "If you want to have storage >>>> with the same industrial temperature range as the rest of my product line >>>> then buy this card, or supply your own at your own risk." >>>> >>>> Everybody selling fiber to the radio with an SFP slot does it that >>>> way. I always buy their SFP module. >>>> >>>> >>>> On 5/18/2015 10:09 PM, Forrest Christian (List Account) wrote: >>>> >>>> What is the lowest temperature that each of you would normally >>>> expect to see in your enclosures? >>>> >>>> The reason I'm asking is that I'm in the process of developing up a few >>>> new products. >>>> >>>> To date, all of the packetflux products are designed with components >>>> rated -40 to +85C (I.E way cold to way hot). I'd like to retain this >>>> rating, but I'm running into a minor snag: >>>> >>>> For storage, I'm planning on integrating a SD card (probably microSD) >>>> in a socket. I only need a GB or so, and SD card memory is inexpensive at >>>> that range. >>>> >>>> Unfortunately, all the reasonably priced SD cards are only rated down >>>> to about -25C or -13F. which are about ~$3 in qty. "Industrial >>>> temperature range" ones which are good down to -40C/F are available but >>>> they add at least $30 to the cost for non-name brand, and even more for >>>> known brands. When you're talking about a $100 end-user price, a $30 1GB >>>> SD card seems excessive - and probably isn't even possible if I want to >>>> meet the $100 price with some margin. >>>> >>>> So, I'm currently playing the 'what options do I have' game. I hate >>>> to ship a product only rated down to -25C/-13F, but I know for at least a >>>> large chunk of my customer base they never see below this temperature, >>>> especially when you add a watt of power dissipation in the case with the >>>> device. Which leads me back to my original question: What's the lowest >>>> temperature most people would expect to see inside their enclosures. >>>> >>>> -- >>>> *Forrest Christian* *CEO**, PacketFlux Technologies, Inc.* >>>> Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602 >>>> [email protected] | http://www.packetflux.com >>>> <http://www.linkedin.com/in/fwchristian> >>>> <http://facebook.com/packetflux> <http://twitter.com/@packetflux> >>>> >>>> >>>> >>> > > > -- > *Forrest Christian* *CEO**, PacketFlux Technologies, Inc.* > Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602 > [email protected] | http://www.packetflux.com > <http://www.linkedin.com/in/fwchristian> <http://facebook.com/packetflux> > <http://twitter.com/@packetflux> > >
