Thanks James and Bob,

I've spent a fair bit of time studying the info on both systems (the 
Intronix and the 232 Analyser) and can see lots of merit in both.

I need to give it some more thought, but because I mostly only see 
individual devices  ..  not complete systems, the 232 Analyser still looks 
like it may be the best bet at the moment. Being able to inject commands and 
see the response should help heaps  ...  providing I can work out what I 
need to send, and what I should expect in return !!!

Regards,  Roger


---
From: "James Holland" <j_holland@btopenworld.com>

>>
>
> I tend to use my Intronix USB Logic Analyser to investigate serial port
> comms problems. It has a 232 analyser built into the software and using a
> Logic Analyser allows the baud rate and signal polarity to be easily
> determined.
>
> http://www.pctestinstruments.com/
>
> Cheers
> James
>


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