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Epson ActionDesk 4000
Connector Pin Assignments
Parallel Port Connector (CN3)
pin 25
pin 14
Parallel port connector pin assignments
Pin Signal
Pin Signal
Pin Signal
1
Strobe
10
ACK *
19 Signal ground
‘Active low logic
Serial Port Connectors (CN4 and CN5)
Serial port connector pin assignments
Keyboard and Mouse Connectors (CN7 and CN6)
pin 6
pin 5
pin 2
pin 1
Keyboard and mouse connector pin assignments
1
Pin
I
Signal
I
Pin
I
Signal
1
Data
2 Resewed
3
Ground
4
+5 VDC
5
Clock
6
Reserved
VGA Port Connector (CN2)
pin 5
pin 10
pin 15
pin 1
pin 6
pin 11
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
Epson ActionDesk 4000-6
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