Epson PC AX Technical Manual page 104

PRINCIPLES OF OPERATION
Hard Disk Drive Signal Cable
REV.A
Hard disk drive signal cable
lS
identical to the floppy disk drive signal
cable. So, when changing the setting of the hard disk drive number (C or D),
it is not necessary to change the hard disk drive jumper setting.
You can change the setting of the hard disk drive number by modifying the
connections of the hard disk drive signal cable.
Remark
Concerning hard disk drive's terminator, they are not identical to the floppy
disk drive. When you install the second hard disk drive, you must remove one
terminator from drive number D.
HOST
DRIVE C
+5V
t
~
220 ohm
L..c---e-
TERMINATOR
SW 330 ohm
ON
7,7
I
DRIVE D
t>o
+5V
1'20~
TE"'INATOR~
330
~
OFF
FIGURE 2-4-18. HARD DI8K DRIVE SIGNAL CABLE
2-76