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General discussion

Replace RS232 cable with wireless

Feb 8, 2006 8:44PM PST

Once a day, machine shop strings 150' of RS232 cable across the shop floor to program a screw machine from a Win95 computer. Can this cable be replaced by a wireless link?

Discussion is locked

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Just the links.
Feb 8, 2006 8:48PM PST
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(NT) (NT) Thanks, Bob
Feb 8, 2006 10:01PM PST
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Replace RS232 cable with wireless
Mar 7, 2006 9:26AM PST

I may have a wireless solution for you. I have a wireless bluetooth product that emulates RS232 or RS485 serial cable at speeds up to 115.2 Kbps. Three levels of security and ruggedized for the industrial environment. Interested?

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Does it transparently pass varying baud rates? ie...
Mar 7, 2006 9:32AM PST

Just like wires would?

Or must we select a baud rate?

Bob

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Varying Baud Rate
Mar 8, 2006 2:55AM PST

Yes, the device would transparently pass varying baud rates up to the maximum of 115.2 Kpbs.

Rocke

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(NT) (NT) Link please.
Mar 8, 2006 3:31AM PST
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RS232 Replacement
Mar 9, 2006 2:11AM PST
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Too light on details.
Mar 9, 2006 2:23AM PST

Screen shots of the setup software could reveal if this would work. We have tried such devices before and found that because our baud rate changes speeds, bluetooth RS232 links have not worked for us. All I've found were units that you set for some baud rate and not a replace the wire units.

Another clue is if the devices support the RS232 'break' signal. Again, something lacking in such devices.

At first this sounds demanding but this is the embedded world and not PC centric.

Bob

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RS232 Replacement
Mar 10, 2006 4:04AM PST
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Sorry. Price issue.
Mar 10, 2006 5:10AM PST

We have a Zigbee solution for under 99 bucks. Even in 2 parts it's under 99 bucks. Bluetooth could be considered in the 99 buck and less range.

Sorry, but this one is 4 times more expensive so it's a non-contender.

Bob

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Zigbee
Mar 13, 2006 3:43AM PST

Great! I knew Zigbee would handle the amounts of data you need, but the spec calls for a maximum of 30 meters line of sight. I'd be interested to know how it works for you. Thanks for your interest.

Rocke

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Think about this.
Mar 13, 2006 3:54AM PST

The device is one you operate and walk through it. To push the button at 30 meters means that is unlikely you'll get there in that much time...

It's all about the application. And more often than not, it's the money.

Bob