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Hard Disk (Ide) Connector (Cn1); Power Connector (J5) - Sony 486DX User Manual

Industrial grade 486dx/dx2/dx4 cpu card
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3.2.2 Hard Disk (IDE) Connector (CN1)

A 40-pin header type connector (CN1) is provided to interface with up to two embedded hard disk drives (IDE AT
bus). This interface, through a 40-pin cable, allows the user to connect up to two drives in a "daisy chain" fashion.
To enable or disable the hard disk controller, please use BIOS Setup program to select. The following table
illustrates the pin assignments of the hard disk drive' s 40-pin connector.
Table 3-1 HDD Pin Assignment

3.2.3 Power Connector (J5)

J5 is 8-pin power connector. Using the J5, you can connect the power supply to the on board power connector for
stand alone applications directly.
2
1
Figure 3-5 CN1: Hard Disk (IDE) connector
Pin
Signal
1
-RESET
3
DATA 7
5
DATA 6
7
DATA 5
9
DATA 4
11
DATA 3
13
DATA 2
15
DATA 1
17
DATA 0
19
GROUND
21
Not Used
23
-IOW
25
-IOR
27
Not Used
29
Not Used
31
IRQ14
33
SA 1
35
SA 0
37
-CS 0
39
HD LED A
J5
Figure 3-6 J5: Power Connector
Pin
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
1 GND
2 +5VDC
3 +5VDC
4 GND
5 GND
6 +12VDC
7 -12VDC
8 -5VDC
AR-B1474 User¡ ¦ s Guide
40
39
Signal
GROUND
DATA 8
DATA 9
DATA 10
DATA 11
DATA 12
DATA 13
DATA 14
DATA 15
Not used
GROUND
GROUND
GROUND
BALE
GROUND
-IOCS16
Not used
SA 2
-CS 1
GROUND
3-3

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