KERMIT-80 was adapted for the Osborne 1 by Charles Bacon at NIH.

Here are some comments on this implementation:

This implementation does not support the modem port, just the serial port.

Change speed (BAUD) of the serial line freely between 300 and 1200
with the SET BAUD command. Note that SETUP may later report incorrect
speed.

Type C<esc><CR> to CONNECT to the serial line.  Then dial the remote
computer.

Escape character for CONNECT is CTRL-\.

Osborne 1 [version] was quite a hack, since like too many micros, the
Osborne is sold as a mystery machine and took a lot of detective work
[unquote].

The cable used with the Osborne 1 modem connector has male connectors
at both ends, but is asymmetric.  The black connector should plug into
the Osborne and the gray connector into the modem.  This cable is
fabricated from four-conductor stranded wire, and it may be up to
several hundred feet long.  Here it is:

(Black shell)                       (Gray shell)
Signal Name	Osborne    Modem    Signal Name
at Osborne      Pin no.    Pin no.  at modem

Send data         2          3      Receive data
Receive data      3          2      Send data
Dataset Ready     6         20      Terminal Ready
Signal Ground     7          7      Signal Ground

If there were a fifth wire, it could run between Osborne's pin 20 and
the modem's pin 6.  This would make the cable symmetric.

Note that the "protective ground" is not wired.  Both the Osborne and
the modem should have three-prong power cables.