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ACR8000 Hardware Manual
P/N PM08119 Version 1.00
ACR8000 Expansion I/O Board (Optional)
The I/O for the ACR8000 expansion I/O cards is mapped into the previously reserved bits
256 through 511. There are also four new bits (Bits 116 thru 119, ACR2000/ACR8000
User’s Guide, Miscellaneous Output Flags) which act as card enable control bits.
NOTE: The appropriate enable bit flag must be set before an expansion board’s I/O
will be updated.
The following is a list of jumpers and connectors for the I/O expansion cards:
J1
Address Select 0
J2
Address Select 1
J3 Watchdog
Select
AP1
Input Connector (same pinout as Motherboard Digital Input
Connector P4)
AP2
Output Connector (same pinout as Motherboard Digital Output
Connector P3)
PWR1
External Power (same pinout as Motherboard Isolated Digital I/O
Connector PWR1)
Table 1.19
I/O Expansion Board Jumper Settings
Card Number
0
1
2
3
2-3
1-2
2-3
1-2
J2
Position
2-3 2-3 1-2 1-2
J3
Position
1-2 1-2 1-2 1-2
Card Enable
Bit 116
Bit 117
Bit 118
Bit 119
Input (Bits)
256 – 287
320 – 351
384 – 415
448 – 479
Output (Bits)
288 – 319
352 – 383
416 – 447
480 - 511
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