> No, all you have to do is make sure that it is set to "off", eg:
> 
>   tty00   "/usr/libexec/getty std.9600"   unknown off secure
>                                                   ^^^

Okay, thanks, I'll check this and try again.

> would be to get something like [xy]modem/kermit which should give you a 
> nice way to talk through the serial port and see the responses.

This is what I'd really like to do, until I'm happy that it's working.
I'll give it a go.

Thanks for your help,
David.