[Sussex] Keyboard Skills [Was: Check Out Tesco for a Cheap MP3 Player]

Vic lug at beer.org.uk
Tue Feb 6 18:16:06 UTC 2007


> The ASR33 uses RS232, so you could use it as a serial console as it runs
> at the barest minimum 110 baud 5-bit no parity 1.42 (1.5) stop bit. You
> may want to check the upper and lower voltages though. Older RS232
> equipment could be rated at +/-120V, but the chips in the PC are rated at
> +/-12V.

ASR33 and KSR33 (which was all I could afford at the time) used 20mA
interfaces, didn't they? Or has my brain become scrambled again...?

Vic.





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