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USER CONFIGURABLE SETTINGS
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Function
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Jumper
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Position
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Factory configured - do not alter
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J1
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Closed
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DRAM SIMM type select static column
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J3
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pins 3 & 4 closed
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DRAM SIMM type select fast paged mode
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J3
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pins 1 & 2, 3 & 4 closed
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DRAM SIMM type select standard RAS/CAS
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J3
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Open
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BIOS type select 27256
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J4
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pins 1 & 2 closed
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BIOS type select 27512
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J4
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pins 2 & 3 closed
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Monitor type select color
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J5
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pins 2 & 3 closed
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Monitor type select monochrome
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J5
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pins 1 & 2 closed
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Operating system select non-UNIX
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J6
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pins 1 & 2 closed
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Operating system select UNIX
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J6
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pins 2 & 3 closed
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Keyboard reset enabled
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J7
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pins 1 & 2 closed
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Keyboard reset disabled
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J7
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pins 2 & 3 closed
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NPU absent
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J8
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pins 1 & 2 closed
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NPU present
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J8
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pins 2 & 3 closed
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Serial port 2 enabled
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J9
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pins 1 & 2 closed
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Serial port 2 disabled
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J9
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pins 2 & 3 closed
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Serial port 1 enabled
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J10
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pins 1 & 2 closed
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Serial port 1 disabled
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J10
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pins 2 & 3 closed
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Printer acknowledge select trailing edge
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J12
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pins 2 & 3 closed
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Printer acknowledge select leading edge
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J12
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pins 1 & 2 closed
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Factory configured - do not alter (100ns SIMM)
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J14
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pins 1 & 2, 4 & 5 closed
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SIMM type select 256K x 9
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J15
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pins 1 & 2, 4 & 5 closed
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SIMM type select 1M x 9
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J15
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pins 2 & 3, 5 & 6 closed
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