Re: NTLK Line In Connector?

From: Paul Guyot (pguyot@pnm-consulting.com)
Date: Wed Aug 23 2000 - 10:37:55 CDT


>On Wed, 23 Aug 2000, J. van de Griek wrote:
>
>Really these are known to the OS as Serial 0 and Serial 3, for reasons only
>Apple knows.

Simply that there are 4 serial channels:

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)

Regards,

Paul

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