Re: [ts-7000] industrial wireless options

[walter marvin <>]

Agreed this will do it. But if your going that far why not simply use the Internet? You probably have the connections at both ends anyway. Security can be provided by a virtual private network. (VPN) some routers directly support VPN s

--- On Tue, 4/19/11, Jason Stahls <> wrote:

From: Jason Stahls <>
Subject: Re: [ts-7000] industrial wireless options
To:
Date: Tuesday, April 19, 2011, 7:56 AM

 

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On 04/19/11 02:51, Simon Leung wrote:
> On 18/04/11 16:33, Jason Stahls wrote:
> If it's a short hop (1-2km) I'd just use 802.11. You could go as cheap
> as a couple consumer routers that support WDS or allow for the wireless
> to work in client mode to industrial grade stuff by people like Westermo
> and Pheonix.
>
> Another approach would be to still use a wireless router/access point
> but to add wireless to the TS product you're using. You can open up the
> USB wifi dongle, cut it's antenna, and solder on a pigtail for a
> external antenna.
>
> If you go the 802.11 route you'll want to use external directional
> antenna, be it yagi or dish (depending on the gain you need).
>
>> Can 802.11 go as far as 1-2km? How many routers is needed for that or
>> does one have to buy an expensive industrial grade router?
>
>> We're also looking at bluetooth/zigbee for connection between the
>> machine and TS7800 and keep TS7800 on a wired connection. Anybody done
>> this before?

By all means 802.11 can do 1-2km, you can go further then that too :)
No you don't need expensive stuff, you can do it with a consumer router
(read, $30-40), a couple Pringles cans and some coax to feed it with.

There's loads of antennas on eBay for really cheap like this

<http://cgi.ebay.ca/2-4-GHz-16-dBi-Wifi-Yagi-Antenna-RP-SMA-5-meter-cable-/190502707460?pt=LH_DefaultDomain_0&hash=item2c5ad8a104>

Giving your system some gain on the antennas is how you get the distance :)

Check out some of the third party FW providers too like OpenWRT, DD-WRT,
ect and see if it will run on a router you have/can get cheap. With
third party FW a lot of the time you can turn the power up on the
transmittier.

If you're wondering if you can make it with 802.11 there is no way
you'll make it with Bluetooth (100M) or Zigbee (70M) not to mention
their quite slow.

- --
Jason Stahls
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