On Wed, 3 Jan 2001 23:44:57 +0000 (GMT) Tony Duell
<ard_at_p850ug1.demon.co.uk> wrote:
> As an aside at this point : Everyone on this list should go and get one
> of those little RS232 quick testers -- the things with a DB25 plug on one
> side, a DB25 socket on the other and 7 (or so) bi-colour LEDs that
> monitor (at least) TxD, RxD, RTS, CTS, DSR, DTR, DCD. You'll find
> (amongst other things) that it's useful for determining whether an
> unknown serial port is a DTE or DCE simply by plugging it in and seeing
> wether the TxD LED or RxD LED lights up.
I have a Tektronix 833 Serial Comms Tester. Rather a nice
bit of kit, with a tiny LED display (hex) and a serial
patch-panel built-in. I also have the manual, which gives
full repair information. It's a 6800 CPU in there, which I
suppose makes the tester a classic computer in its own
right.
Of course, it's limited to 9600 baud... but then, who's
ever seen anything faster than that? :-)
--
John Honniball
Email: John.Honniball_at_uwe.ac.uk
University of the West of England
Received on Fri Jan 05 2001 - 05:59:24 GMT