Delta Data Systems PMAC PCI - E17 A-D: Amplifier Enable;Direction Polarity Control; E17 E-H: Amplifier Enable;Direction Polarity Control

PMAC-PCI Hardware Reference
16 PMAC-PCI E-Point Jumper Descriptions
E17A-D: Amplifier Enable/Direction Polarity Control
E Point and
Physical Layout
Location
Description
Default
E17A
A4
Jump 1-2 for high-true AENA1.
Remove jumper for low-true AENA1.
No jumper
installed
E17B
A4
Jump 1-2 for high-true AENA2.
Remove jumper for low-true AENA2.
No jumper
installed
E17C
A4
Jump 1-2 for high-true AENA3.
Remove jumper for low-true AENA3.
No jumper
installed
E17D
A4
Jump 1-2 for high-true AENA4.
Remove jumper for low-true AENA4.
No jumper
installed
Note: Low-true enable is the fail-safe option because of the sinking (open-collector) ULN2803A output
driver IC.
E17E-H: Amplifier Enable/Direction Polarity Control
E Point and
Physical Layout
Location
Description
Default
E17E
C5
Jump 1-2 for high-true AENA5.
Remove jumper for low-true AENA1.
No jumper
installed
E17F
C5
Jump 1-2 for high-true AENA6.
Remove jumper for low-true AENA2.
No jumper
installed
E17G
C4
Jump 1-2 for high-true AENA7.
Remove jumper for low-true AENA3.
No jumper
installed
E17H
C4
Jump 1-2 for high-true AENA8.
Remove jumper for low-true AENA4.
No jumper
installed
Note: Low-true enable is the fail-safe option because of the sinking (open-collector) ULN2803A output
driver IC.