Epson 486 UC+ - Manual (Page 7)

Epson EL 486UC+
System l/O Address Map Connector Pin Assignments
Parallel port connector pin assignments (CN3)
Serial port connector pin assignments (CN4 and CN5)
Keyboard and mouse connector pin assignments (CN7 and CN6)
VGA port connector pin assignments (CN2)
Power supply connector pin assignments (CN8)
Diskette drive connector pin assignments (J16)*
*All odd-numbered pins are grounds
12/1/93 Epson EL 486UC+-7