Industrial Wireless

[TimWilborne]

I am looking for a wireless system that can handle a construction zone in between point A and B. Pretty much that means the line of sight will be changing with the construction so will need a pretty strong signal. Any ideas? This is actually a continuation of THIS thread

[TJS]

I read your other thread. I dont know why no one has mentioned forgetting the phone line and just going 802.11 wireless ethernet for such a distance. You go down to BestBuy and pick them up. You would probably want to use directional antennas since youre getting out too there (~200 feet or so). Or you can buy MDS or any brand network radios (unlicensed 900 mhz radios etc) to wirelessly extend your ethernet point to point many thousands of feet to miles.

[TimWilborne]

From the other thread The problem with wireless is line of sight. They are building a building between point A and B. I have setup a store bought wireless till I can solve this problem. Worked great, then the moved a big dumpster in the way. It still worked, but not that good. Then they filled it will concrete from demolition. End of wireless till they move the dumpster. Also the distance will be 100 ft

[Camel]

You don't necessarily need line of sight. I installed some wireless for a city that transmitted through a couple of walls and across a street and still worked fine. We just used your run of the mill bought it at wal-mart stuff. At work we installed some wireless that could transmit through several brick walls. We used Symbol equipment in a redundant setup.

[TimWilborne]

Yes I use store bought wireless here and pass through several walls. But with this one the store bought wireless isn't doing the job. Does anyone have any experience with any industrial wireless products?

[panic mode]

in my experience line of site is prefered but often not nececary like if you have devices with signal strong enough or if signal can be bounced of something like wall etc. once this is exhausted one can think of better antena or multiple antenas. mimo wireless products are meant for top performace (gaming) and longer range, i've seen some of such products with two, three or even four antenas. i've read somewhere about experiment where standard wireless antena was disconnected from network card (it was on connector) and replaced with about 1" long wire inside can (about 6"x4") serving as a crude dish. both ware connected with about two feet long cable. according to the text, range increased at least tenfold. encouraged by results they supposedly tried to do the same thing but with real dish on both ends and after some struggle with alignment they ware able to make it work over distance of some 16 miles or so (line of sight). there are modems for standard radio equipment. CB radios are common and cheap, have much bigger output than wireless network cards and operate on lower frequencies so line of sight is not essential. but the performance is pathetic (9600bps or so) due lower bandwith. you should be able to get same if not better results with serial connection over those spare wires. but what is the budget? btw, the only industrial radios i've seen in action are from phoenix contact http://www.phoenixcon.com/wireless/detail....eless+Interface and they ware really awsome (see Wireless Interface http://www.phoenixcon.com/wireless/) on same page you can see additional products

[TimWilborne]

No real budget numbers but needs to be within reason. The main thing is I need a solution that will last through the construction which hopefully will be done at the end of this year. Pretty much it needs to survive for 6 months minimum,be pretty hassle free, and not get in the way of the construction.

[Smoke]

Out laptops are totally wireless in a building 750,000 sq ft. we use Cisco with several antennas. I am in a concrete room right now.

[TimWilborne]

Now that's what I'm looking for. Thanks, going to search Cisco's site. Do you have any part numbers?

[Smoke]

Here is the software. We just upgraded the antennas IT did it I dont know the part # for them. Edited May 28, 2006 by Smoke

[larry818]

You should be able to do this using consumer stuff. I've got a similar system connecting my house to office. I use two of these antennas: http://www.poynting.co.za/productdisplay.php?id=25&cat_id=3 connected to two Linksys WET54G bridges. The bridges have to be right at the antenna, so I use two POE adapters. I put the wet54g in an enclosure outside. I got the antenna adapters from www.sky2web.com (rptnc to n male). I'm hitting stuff a mile away with 100% signal and a coffee shop five miles away that I can't see with 80%. There's a guy on ebay (infowan) selling these antennas on the cheap. Good luck! Larry