How to tell Sun keyboard console from serial console?

I there a way to tell whether a console is at the keyboard or at the
serial port on a Sun machine?  The "tty" command gives /dev/console for
both.

--
Ernest A. Oporto, Senior Systems Administrator
Virage Logic Corporation
http://www.viragelogic.com
Perryville Corporate Park, Bldg 3, Clinton, NJ 08809
Phone:(908)735-1932   Fax:(908)735-1999
mailto:Ernie.Oporto@viragelogic.com

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