ST506/412 Cable

From HwB

The ST506/412 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
|::|===================|  |============|  |
|::|===================|  |============|  |
|::|===================|  |============|  |
|::|===================|  |=====\/=====|  |
|::|===================|  |=====/\=====|  |
|::|===================|  |============|  |
+--+                   +--+            +--+

Contents

Pinout

Control cable

Idc34f.png

34 PIN IDC FEMALE to the Controller.

Idc34f.png

34 PIN IDC FEMALE to the Drive 2.

Idc34f.png


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

Idc20f.png

20 PIN IDC FEMALE to the Controller.

Idc20f.png

20 PIN IDC FEMALE to the Drive.

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

Contributions

Sources