Product manual

Product Manual - Hawk 2 Family (Wide bus) SCSI-2 (Volume 1), Rev. A 55
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Figure 11.6.3-1a. Non shielded SCSI device connector for model ST12400W/WD
11.6.3.2 Mating connectors for "WC" models
The non-shielded connector shall be an 80 conductor connector consisting of two rows of 40 contacts with
adjacent contacts 50 mils (1.27 mm) apart. The connector is keyed by its shape. The characteristics of the
drive's PCB mounted connector are shown in Figure 11.6.3-1b.
11.6.3.3 J2 Jumper plug part number
Option select header connector J2 on the PCB (see Figure 10.1-1) uses an unusual type of jumper, its part
number is given here for reference:
Molex 52747-0211 (Seagate P/N 77670952).
Position 1Position 1Position 1
.0787
(2.00)
3.650
(92.71)
.834 ± .010
(21.18)
.315 ± .010
(8.00)
+.001
–.002
dia
.083
(2.1)
Trifurcated Pins
(4 places)
.065
(1.65)
x 45° chamfer typ
.20
(5.08)
typ
.60
(15.24)
.42
(10.67)
ref
.100
(2.54)
Position 1
12
3
4
1.816
(46.13)
Position 1
1.650
(41.91)
.050
(1.27)
.218
(5.54)
Position 1
.750
(19.05)
.650
(16.51)
.388
(9.86
.142
(3.61)
.079
(2.00)
.054
(1.37)
ref
PCB ref
HDA