Chapter 2, ACR8020 Motherboard Hardware Set-Up
17
ACR8020 MOTHERBOARD JUMPERS
Digital Output Sink/Source Select Jumpers (JP15 and JP16)
These jumpers are set at the factory based on the type of the output drivers, IC’s U120
through U123. 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 (U120-U123). 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
(U120-U123)
(See Warning Above)
JP15
JP16 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 2.4
ACR8020 Digital Output Sink/Source Select Jumper
Содержание ACR8020
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