Switch settings for LA210 printers:

There are two switchpacks, each containing 8 tiny switches, visible at the 
back of the machine.  The left one (viewed as you look at the back of the 
machine, right-side-up) is switchpack A, the right one is B.

The switches are numbered left-to-right, 1 to 8, in each switchpack.

A1 sets "restraint" mode (down) or "speed control" mode (up) using the EIA 
control lines.  Down is the normal setting.

A2 enables (up) or disables modem control.  Down is the normal setting.

A3 and A4 select the response to a paper fault (e.g. out of paper
condition).
	A3	A4
	down	down	No action (XOFF is sent if enabled) (normal setting)
	up	down	Send 'break' signal to computer
	down	up	Disconnect (drop DTR)
	up	up	Do not connect

A5 determines whether the printer will ignore (down) the ASCII EOT character,
or disconnect when it receives one.  Down is the normal setting.

A6 disables (down) or enables XON/XOFF flow control.  Up is the normal
setting.

A7 prints a substitute character when an error is detected in the incoming
data (e.g. a parity error), if down; or prints data as received regardless
of errors, if up.  Down is the normal setting.

A8 stores currently-selected features in permanent memory.  These features
include horizontal and vertical tab settings, page length, horizontal and
vertical pitch, horizontal and vertical margins, paper alignment, paper
width, answerback message, character set selection and mapping, pitch mode,
end of line control, new line request, C1 receive and C1 transmit.  To alter
these settings, you would transmit the appropriate escape sequences to make
the change; then toggle the A8 switch from down to up and back to down in
order to save the settings in memory.

B1 through B5 set the serial data baud rate.  In the case of split baud
rates (B5 up), the first rate shown is the transmit rate, the second is
the receive rate.
	B1	B2	B3	B4	B5	Rate
	down	down	down	down	down	50
	up	down	down	down	down	75
	down	up	down	down	down	110
	up	up	down	down	down	134.5
	down	down	up	down	down	150
	up	down	up	down	down	200
	down	up	up	down	down	300
	up	up	up	down	down	600
	down	down	down	up	down	1200
	up	down	down	up	down	1800
	down	up	down	up	down	2400
	up	up	down	up	down	4800 (normal setting)
	down	down	up	up	down	7200
	up	down	up	up	down	9600

	down	down	down	down	up	75/600
	up	down	down	down	up	75/1200
	down	up	down	down	up	150/600
	up	up	down	down	up	150/1200
	down	down	up	down	up	300/2400
	up	down	up	down	up	300/4800
	down	up	up	down	up	600/2400
	up	up	up	down	up	600/4800

B6 and B7 enable/disable and select parity settings. The interpretation
of these switch settings depends on whether the printer is in 7-bit or
8-bit data mode (switch B8).
	B6	B7	7-bit	8-bit	
	down	down	space	none	(normal setting)
	up	down	mark	none
	down	up	even	even
	up	up	odd	odd

B8, when up, enables 8-bit data mode; when down, 7-bit data is used.  Up
is the normal setting.

