Operation
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3
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
Pin
Signal
1 -RST
21
not
used
2 Ground
22
Ground
3 DD7
23
-DIOW
4 DD8
24
Ground
5 DD6
25
-DIOR
6 DD9
26
Ground
7 DD5
27
not
used
8 DD10
28
DALE
9 DD4
29
not
used
10 DD11
30
Ground
11 DD3
31
IRQ14
12 DD12
32
-IOCS16
13 DD2
33
DA1
14 DD13
34
DIAG
15 DD1
35
DA0
16 DD14
36
DA2
17 DD0
37
-HCS0
18 DD15
38
-HCS1
19 Ground
39
HACT
20 KEY
40
Ground
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.
