[Rxtx] about VDCP by rxtx

Ilkka Myller ilkka at myller.com
Tue Feb 24 01:01:42 MST 2009


Hi,

VDCP is based on RS-422 interface (ANSI/TIA/EIA-422-B standard) and  
RXTX is a library for RS-232 serial interfaces.
You can use Java and RXTX to control RS-422 devices if you get RS-232<- 
 >RS-422 conversion (adapter maybe?)

RS-422 has data rate of about 10MBd/s and since most RS-422<->RS-232  
adapters get max. 115.2kBd/s, you would lose a lot of bandwidth.

http://en.wikipedia.org/wiki/EIA-422
http://en.wikipedia.org/wiki/RS-232

You also would have do/buy Java based VDCP protocol implementation  
yourself. As you know, RXTX is a library only for interfacing RS-232  
serial ports. It does not implement any serial protocols.

Details for this proprietary protocol might be available from Harris  
Broadcast, a division of Harris Corporation.

http://www.broadcast.harris.com/

--
I

coffeelu kirjoitti 24.2.2009 kello 9.08:

>
>
> Hi all,
> I'm doing my job with rxtx.It's great.But I'm fresh,do me a favor! 
> (sorry!My English is poor!).
> Do you know about VDCP(video disk communications protocal)? using  
> VDCP by rxtx?
> thanks!
>
>
>
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