[net.micro.cpm] Need help with Rainbow printer

msr@bunker.UUCP (Michael S. Romaniw) (10/16/85)

	I just got my hands on a DEC Rainbow running CPM, (no doc of course),
and am running into trouble getting the printer (LA50) to work.  It seems to
be overflowing its' buffer at 4800 baud...dropping it to 1200 just delays the
data overrun.  Does the Rainbow use XON/XOFF ??? or does it use the BUSY/OUT?
What about parity ????  Can anyone help ?

					Thanks,
					Mike Romaniw
					Bunker Ramo
					...decvax!bunker!msr

Kushall.henr@XEROX.ARPA (10/22/85)

Mike:

The Rainbow uses XON/XOFF protocol.

I have a Rainbow and LA50 and have had no problem, here is how my
switches are set:

SW1 0-8 open
SW2 0-6,8 open 7 closed

The above switch settings are the 'as shipped default settings' as shown
on the LA50 manual on page 13.

Hope this helps.

Ed Kushall