Table 3. Exm-9 40-Pin Ide Connector Pin-Out - RadiSys EXM-9 Reference

The 40-pin IDE connector on the front panel of the EXM-9 mates with a ribbon cable
to an IDE drive. The pins are defined below.
Pin Signal
1 -RST
2 Ground
3 DD7
4 DD8
5 DD6
6 DD9
7 DD5
8 DD10
9 DD4
10 DD11
11 DD3
12 DD12
13 DD2
14 DD13
15 DD1
16 DD14
17 DD0
18 DD15
19 Ground
20 KEY

Table 3. EXM-9 40-pin IDE Connector Pin-Out.

This product is designed to provide connectivity for external floppy drives and/or
hard disks via ribbon cables from the front panel connectors. You should be aware
that, as with all electrical cables, these ribbon cables can cause severe system
problems if they short to the chassis.
Operation
Pin Signal
21 not used
22 Ground
23 -DIOW
24 Ground
25 -DIOR
26 Ground
27 not used
28 DALE
29 not used
30 Ground
31 IRQ14
32 -IOCS16
33 DA1
34 DIAG
35 DA0
36 DA2
37 -HCS0
38 -HCS1
39 HACT
40 Ground
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