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Pioneer DR-944 Operating Instructions Manual page 4

Max. 40x cav atapi cd-rom drive unit

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Rear Panel
1 . DC Input
Pin
1
2
3
4
2 . ATAPI Interface
It should be connected with the Enhanced-IDE port of the computer. Use 40pin flat type cable.
Length of the cable is less than 18inchs(46cm) according to the ATA specifications.
It may cause data transfer error, if longer cable more than above value is used.
Pin
Name
1
RESET-
2
GND
3
DD7
4
DD8
5
DD6
6
DD9
7
DD5
8
DD10
9
DD4
10
DD11
Remarks: The minus sign indicates active low.
Name
+12
Power supply input of DC +12V
G
Ground
G
Ground
+5
Power supply input of DC +5V
Pin
Name
11
DD3
12
DD12
13
DD2
14
DD13
15
DD1
16
DD14
17
DD0
18
DD15
19
GND
20
(KEYPIN)
Function
Pin
Name
21
DMARQ
22
GND
23
DIOW-
24
GND
25
DIOR-
26
GND
27
IORDY
28
CSEL
29
DMACK-
30
GND
4
OB-U0192
Pin
Name
31
INTRQ
32
IOCS16-
33
DA1
34
PDIAG-
35
DA0
36
DA2
37
CS1FX-
38
CS3FX-
39
DASP-
40
GND

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