RS232 to RS485/RS422 convert for PTZ Cameras ...

[C.Lee Taylor]

Greetings ...

 Getting a little desperate, seeing that the local people don't have this needed RS232 to RS485/RS422 converter.  RS Electronics have one listed, but no stock. Anybody know where to source this kind of device?

Thanks

Mailed

LeeT

[Carel Scholtz]

Hi

Not sure if this is what you are looking for?

http://www.cameratron.co.za/cameras.htm#ptza

RS485/RS232 to Coms

R70

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[Chris Ainslie]

Assuming that you need RS485 on the camera side, it might be easier to buy a RS485 card for the PC.

These converters were common about 10 years ago (but not cheap) and they're getting harder to find locally.

Also, about 10 years ago I used to deal with Centurion Micro Electronics for this type of stuff (and embedded industrial PC's) http://www.cme.co.za/

A quick look on their website didn't list anything, but give them a call, they might be able to help.

Chris

Kind Regards,

Chris Ainslie

078 209 8955

ZS5CMA

On Wed, May 22, 2013 at 10:08 AM, C.Lee Taylor <le...@leenx.org> wrote:

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[C.Lee Taylor]

That seems to be exactly what I am looking, for have already purchased from RS, at three times the prices.  Any way, if we need more, I know where to get cheaper.  

Thanks Guys!!

[C.Lee Taylor]

Yo ... 

Thanks for all the replies ...

On 22 May 2013 10:27, Chris Ainslie <ch...@ainslie.co.za> wrote:

Assuming that you need RS485 on the camera side, it might be easier to buy a RS485 card for the PC.

Seems the standard now, is to connect an RS232 to RS422/RS485 to an isolated distribution/splitter/switch box, so no need for the expensive devices I have seen, used in Industrial Application.  Then from switch to Cameras to communicate with Pan/Tilt/Zoom hardware.

 

These converters were common about 10 years ago (but not cheap) and they're getting harder to find locally.

Funny thing is, I would think that any company providing PC based capture cards, would carry these devices to, so that you can still install PTZ Cameras on PC and not only on Stand-alone DVR systems.

 I have seen this convert going tom R70 to R3500, so yes ... Crazy stuff.  I remember people making these converts for PLC's in the Industrial market, but that was many years ago.

 

Also, about 10 years ago I used to deal with Centurion Micro Electronics for this type of stuff (and embedded industrial PC's) http://www.cme.co.za/

I'll look there ... Always good to have these sites on hand.  Their SEO is bad, so very hard to find these things, unless you know what they do.