Piedinature - Pinouts
ESDI Cable

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The ESDI interface requires two cables, one for control and one for data. The control cable is shared between the two drives. But each drive has each own data cable. By twisting some wires on the control cable it won't be necessary to set the ID for each drive, since the twist will do the job. Wires 25 to 29 should be twisted between drive 1 & drive 2.

Controller           Drive 2   Twist   Drive 1 +--+                   +--+            +--+ |::|===================|  |============|  |  <-Pin 1 |::|===================|  |============|  | |::|===================|  |============|  | |::|===================|  |============|  | |::|===================|  |=====\/=====|  | |::|===================|  |=====/\=====|  | |::|===================|  |============|  | +--+                   +--+            +--+

Control cable

34 PIN IDC FEMALE
(34 PIN IDC FEMALE to the Controller)

34 PIN IDC FEMALE
(34 PIN IDC FEMALE to the Drive 2)

34 PIN IDC FEMALE
(34 PIN IDC FEMALE to the Drive 1)

Controller Drive 1 Drive 2
Wire 1-24 1-9 1-9 1-9
Wire 25 25 29 25
Wire 26 26 28 26
Wire 27 27 27 27
Wire 28 28 26 28
Wire 29 29 25 29
Wire 30-34 30-34 30-34 30-34

Data cable

20 PIN IDC FEMALE (To the Controller)

20 PIN IDC FEMALE (To the Drive)

20 PIN IDC FEMALE to the Controller.
20 PIN IDC FEMALE to the Drive.

Controller Drive
Wire 1-20 1-20 1-20



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