[ ... forcing alternate serial console for DEC3000/300 ... ]
 
> My 3000/300's did it automaticly when a keyboard was not detected. 

It's strange.  Unplugging DB15 has worked for me so far.  To make sure
DEC3000/300 to run alternate serial console,

         1. locate W2 jumper near 50pin SCSI connector
	 2. It should have 2-3 connected, rather than 1-2 connected.

Tohru Nishimura
Nara Institute of Science and Technology