Parker ACR2000, Hardware Manual

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Chapter 1, ACR2000 Motherboard Hardware Set-Up 11
ACR2000 MOTHERBOARD JUMPERS
Digital Output Sink/Source Select Jumpers (J7 and J8)
These jumpers are set at the factory based on the type of the output drivers, IC’s U14 and
U15. The selected type of the output driver applies to all outputs; there are no
combinations available.
Isolated voltage (VEXT) refers to +24VDC.
WARNING
Wiring VEXT with the incorrect voltage will permanently
damage the Digital I/O circuitry. The isolated voltage
(VEXT) is +24VDC.
Selecting the wrong jumper settings for the type of output
drivers installed on the board will permanently damage the
output driver IC’s (U14 and U15). The output drivers are
installed at the factory, based on the Sinking or Sourcing
Option selected when ordering the board.
Refer to Figure 1 for jumper location.
Digital Output Sink/Source Select Jumpers
Output Type Output Driver IC Type
Installed (U14/U15)
(See Warning Above)
J7 J8 User Supplies
Sink Motorola / ST Micro
ULN2803A
1-2 1-2 Path to VEXT
Source Allegro
UDN2981A
2-3 2-3 Path to GEXT
Table 1.5 ACR2000 Digital Output Sink/Source Select Jumper