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16
2.2 I/O connector
The ST5850A uses a 40-pin, male I/O connector with two rows of twenty
pins each. The even-numbered pins are closest to the printed circuit
board's edge. Pin 1 is near the 4-pin power connector. Pin 20 is removed
for keying purposes. A drawing of the I/O connector is shown in Figure 2.
0.70 ± 0.010
0.025
± 0.002
0.160
1.90
2.00
Figure 2. ATA interface connector
We recommend the following part numbers or their equivalents for the
mating connector.
Part
Connector
Connector
Flat cable
To ensure the integrity of your data, use a 40-connector, nonshielded I/O
cable with a maximum length of 18 inches (0.46 meters).
2.3 Power connector
The drive uses a standard 4-pin, male power connector. We recommend
the following part number or their equivalents for the mating connector.
Part
Connector
Connector
Connector
Cable
Decathlon 850 ATA Product Manual, July 1995
0.100 ± 0.010
0.235 ± 0.025
pin 1
0.100 typ
Description
40-pin
40-pin
AWG28 (stranded)
Description
Housing
Pin (loose piece)
Pin (Reel)
18 AWG
0.230 ± 0.003
0.025 ± 0.002
0.070 ± 0.010
3M part number
3M-3417-7000
3M-3448-2040
3M-3365-40
Part number
AMP 1-480424-0
AMP 60619-4
AMP 6117-4
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