Re: NTLK Line In Connector?

From: Grant [Jumble Pie] Hutchinson (grant@splorp.com)
Date: Wed Aug 23 2000 - 23:34:36 CDT


On 23/08/2000 09:37 AM Paul Guyot wrote:

>Channel 0 is connected to the internal connector (at CMOS level) and
>to the InterConnect port at RS 422. (230.4 KBits/s)
>Channel 1 is the IR
>Channel 2 is connected to the internal connector (at CMOS) (19.2 KBits/s)
>Channel 3 is connected to both the internal conncetor and the
>InterConnect port at CMOS level. It is also known as the modem port.
>(38.4 Kbits/s)

Paul, what is the difference between the CMOS level serial channel on the
Newton and what Handspring calls a TTL level serial on the Visor? Is this
going to be an issue when I am attempting to cross-breed the 2100's
interconnect port with the Stowaway keyboard? I am assuming that I am
going to need to route the keyboard connection through some sort of
RS-232 transceiver - like this fellow did to get a standard serial cable
working with his Visor...

http://home.satx.rr.com/pbasten/visor/visor.html

Can you enlighten me?

Grant

.......................................................................

Grant Hutchinson Interface Considerations & Toys

Live video served fresh since 1996. http://www.splorp.com/
Now fortified with daily ramblings. http://www.splorp.com/blog/

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