Epson 4SX/25 - Manual (Page 4)

EPSON Equity 4SX/25, 4DX/33, and 4DX2/50
Major Subassemblies
main system option card connector board
board
(option board riser card) power supply
0
\
i
SIMM 1 diskette
speaker drive
Connector Pin Assignments
Parallel Port Connector (CN6)
pin 13 pin 1
pin 25 pin 14
Parallel Port Connector Pin Assignments
horizontal
drive bays
Pin Signal Pin Signal
1 Strobe 10 ACK’
Pin Signal
19
Signal ground
6
7
8
9
Data 7
*Active low logic
Signal ground
Serial Port Connectors (CN4 and CN5)
Serial Port Connector Pin Assignments
Keyboard Connector (CN3) and
Mouse Connector (CN2)
pin 6 pin 5
pin 4 pin 3
pin 2 pin 1
Although the keyboard and mouse connectors are physically
identical, they cannot be used interchangeably.
and Mouse Connector Pin Assignments
Pin Signal Pin Signal
1 Data 4 VDC (fused)
2 Reserved 5
3 Ground 6 Resewed
VGA Port Connector (CN7)
pin 5 pin 1
pin 10 pin 6
pin 15 pin 11
VGA Port Connector Pin Assignments
EPSON Equity-4 4/1/93