User's Manual

Switch l-l (memory size) tells your computer how much memory
(RAM space) is available. The system always checks the amount of
memory available when you reset your computer. The Equity III comes
with 640KB of RAM, so be sure this switch is on.
Switch 1-2 (monitor type) tells your system what type of monitor
you are using, color or monochrome. If you have a color monitor, turn
on switch 1-2. If you have a monochrome monitor, turn off this switch.
Switches 1-3 through 1-6 (PROM size) tell your system which type of
PROM is installed, either 27128 or 27256. These switches are set at the
factory for the correct PROM in your computer. Table 4-2 shows the
proper settings.
Table 4-2. PROM size settings
PROM size 1-3
1-4 1-5 1-6
27128
on on Off off
27256
Off off on on
Switches 2-1 and 2-4 (built-in interface) tell your system what type of
interface (serial and parallel) you are using. You can leave both switches
on, whether or not you are using the ports.
Some option cards contain serial or parallel interface ports. To use
the port on the card, you need to turn off the appropriate DIP switch. For
example, if you install an option card with a serial interface that needs to
be used as COM1 (the device name usually assigned to the built-in serial
port), turn off DIP switch 2-1. Similarly, to disable the built-in parallel
port, turn off switch 2-4.
Switch 2-2 is not used, so leave it off.
Switch 2-3 (floppy disk drive interface) enables the floppy disk drive
interface in your system and should be on. If you install an external
floppy disk controller card at another time, you may want to turn switch
2-3 off to disable the internal floppy disk drive.
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