Product manual

30 Product Manual - Hawk 2 Family (Wide bus) SCSI-2 (Volume 1), Rev. A
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Figure 7.6-1b. Mounting configuration details for "WC" model drives
7.6.2 Cooling
Cabinet cooling must be designed by the customer so that the ambient temperature immediately surrounding
the drive will not exceed temperature conditions specified in 7.4.1. Specific consideration should be given to
make sure adequate air circulation is present around the PCBs to meet the requirements of 7.4.1.
7.6.3 Drive mounting
When mounting the drive using the bottom holes care must be taken to ensure that the drive is not physically
distorted due to a stiff non-flat mounting surface. The allowable mounting surface stiffness is 80 lb/in (14.0
N/mm). The following equation and paragraph define the allowable mounting surface stiffness:
K*x = 80 lb (14.0 N)
where 'k' represents the mounting surface stiffness (units of lb/in or N/mm), and, 'k' represents the out-of-
plane mounting surface distortion (units of inches or millimetres). The out-of-plane distortion ('x') is deter-
mined by defining a plane with three of the four mounting points fixed and evaluating the out-of-plane deflec-
tion of the fourth mounting point when a known force is applied to the fourth point.
A
F
D
E
C
[1]
[3]
B
G
J
H
K
[2]
Notes:
[1]
[2]
[3]
[4]
Inches Millimeters
5.74
4.00
1.620
2.362
.620
4.000
.250
1.750
3.750
2.370
0.181
145.80
101.60
41.15
60.00
15.75
101.60
6.35
44.45
95.25
60.20
4.597
A
B
C
D
E
F
G
H
J
K
L
0.010
0.010
0.026
0.010
0.010
0.010
0.010
0.010
0.005
0.010
0.010
0.010
0.018
0.013
±
±
+
–
±
±
±
+
–
±
±
±
+
–
.25
.25
.66
.25
.25
.25
.25
.25
.12
.25
.25
.25
.45
.33
Mounting holes three on each side, 6-32 UNC. Max
screw length into side of drive 0.15 in. (3.81 mm).
Screw tightening torque 6.0 in-lb (.675 NM) max
with minimum thread engagement of 0.12 in.
(3.05 mm).
Mounting holes four on bottom, 6-32 UNC. Max
screw length into bottom of drive 0.20 in. (5.08 mm).
Screw tightening torque 6.0 in-lb (.675 NM) max
with minimum thread engagement of 0.12 in.
(3.05 mm).
Power and interface connections can extend past the
"A" dimension by 0.040 in. (1.02 mm).
Connector is centered (side to side) on drive within
±0.020 in. (.508 mm).
±
±
+
–
±
±
±
+
–
±
±
±
+
–
L
Connector Centerline
[4]
Pin 1