Information about cable, connector or adapter : Internal Diskdrive
Internal Diskdrive Originally developed by : Copyright : Source : Category : All cables and connectors Connectors Computer Diskdrives Added to database : 2005-12-12 12:06:46 Description : Internal Diskdrive
34 PIN IDC MALE at the computer & diskdrives Pinout : Pin | Name | Direction | Color | Description |
1 | GND | - | | Ground |
2 | /REDWC | OUT | | Density Select |
3 | GND | - | | Ground |
4 | n/c | | | Reserved |
5 | GND | - | | Ground |
6 | n/c | | | Reserved |
7 | GND | - | | Ground |
8 | /INDEX | IN | | Index |
9 | GND | - | | Ground |
10 | /MOTEA | OUT | | Motor Enable A |
11 | GND | - | | Ground |
12 | /DRVSB | OUT | | Drive Sel B |
13 | GND | - | | Ground |
14 | /DRVSA | OUT | | Drive Sel A |
15 | GND | - | | Ground |
16 | /MOTEB | OUT | | Motor Enable B |
17 | RES | - | | Reserved |
18 | /DIR | OUT | | Direction |
19 | GND | - | | Ground |
20 | /STEP | OUT | | Step |
21 | GND | - | | Ground |
22 | /WDATE | OUT | | Write Data |
23 | GND | - | | Ground |
24 | /WGATE | OUT | | Floppy Write Enable |
25 | GND | - | | Ground |
26 | /TRK00 | IN | | Track 0 |
27 | RES | - | | Reserved |
28 | /WPT | IN | | Write Protect |
29 | GND | - | | Ground |
30 | /RDATA | IN | | Read Data |
31 | GND | - | | Ground |
32 | /SIDE1 | OUT | | Head Select |
33 | GND | - | | Ground |
34 | /DSKCHG | OUT | | Disk Change |
Note : The connector on a floppy drive consists of 34 conductors. Both control and data use this same cable. Most cables have a twist that interchanges pins 10 through 16 at the end of the cable (on 1). Most floppy connectors have a "key" between pins & 6, and 3 & 5, to prevent the cable from being reversed. At the other end, the dual row connector that attaches to the controller card will usually have a set of ridges that coincide with cutouts in the controller card's connector. Note that old style floppy-only controllers used a card-edge connector just like that of the drive.
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