Jumper Settings; Jp1 : D/A Internal Reference Voltage Selection - Omega ISA- BUS MULTI-FUNCTIONAL BOARD OME-A822PG Hardware Manual

The PC I/O port map is given below.
ADDRESS Device
000-1FF PC reserved
200-20F Game/control
210-21F XT Expansion Unit
238-23F Bus Mouse/Alt. Bus Mouse 3A0-3AF
278-27F Parallel Printer
2B0-2DF EGA
2E0-2E7 AT GPIB
2E8-2EF Serial Port
2F8-2FF Serial Port
300-31F Prototype Card

2.3 Jumper Settings

2.3.1 JP1 : D/A Internal Reference Voltage
Selection
Reference
Voltage
-5V
(default)
Select (-5V) : D/A voltage output = 0 to 5V (both channel)
Select (-10V) : D/A voltage output = 0 to 10V (both channel)
JP1 is valid only if JP2 is set to D/A internal reference voltage
ADDRESS DEVICE
320-32F
378-37F
380-38F
3B0-3BF
3C0-3CF
3D0-3DF
3E8-3EF
3F0-3F7
3F8-3FF
(-10V)
1
2
3
(-5V)
OME-A-822PGL/PGH Hardware Manual ---- 11
XT Hard Disk
Parallel Printer
SDLC
SDLC
MDA/Parallel Printer
EGA
CGA
Serial Port
Floppy Disk
Serial Port
(-10V)
Reference
1
Voltage
2
-10V
3
(-5V)