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Epson ActionDesk 4000
Connector Pin Assignments
Parallel Port Connector (CN3)
pin 25
Parallel port connector pin assignments
Pin
Signal
Pin Signal
1
Strobe
10
'Active low logic
Serial Port Connectors (CN4 and CN5)
Serial port connector pin assignments
Keyboard and Mouse Connectors (CN7 and CN6)
pin 6
pin 2
Keyboard and mouse connector pin assignments
1
Data
2
Resewed
3
Ground
Epson ActionDesk 4000-6
pin 14
Pin Signal
ACK *
19
Signal ground
pin 5
pin 1
4
+5 VDC
Clock
5
Reserved
6
VGA Port Connector (CN2)
pin 5
pin 10
pin 15
DMA Assignments
Level
Assigned device
DMA0
Resewed (8-bit)
DMA1
Resewed (B-bit)
DMA2
FDD controller (8-bit)
DMA3
Resewed (8-bit)
DMA4
Cascade for DMA controller 1
DMA5
Reserved (N-bit)
DMA6
Resewed (16-bit)
DMA7
Reserved (W-bit)
Hardware Interrupts
9/15/93
pin 1
pin 6
pin 11