Seagate ST3450856FC ユーザーズマニュアル
Cheetah 15K.6 FC Product Manual, Rev. A
67
9.5.2
Connector requirements
The FC-AL SCA device connector is illustrated in Figure 13.
Figure 13. FC-AL SCA device connector dimensions
9.5.3
Electrical description
Fibre Channel drives use the FC-SCA connector for:
• DC power
• FC-AL interface
• Drive select (device identification)
• Option selection
• Enclosure Services interface
• FC-AL interface
• Drive select (device identification)
• Option selection
• Enclosure Services interface
This 40-pin connector is designed to plug directly into a backpanel. External cables are not required.
9.5.4
Pin descriptions
This section provides a pin-out of the FC-SCA and a description of the functions provided by the pins.
Table 23:
Recommended mating SCA part numbers
Part description
Positions
Part number
Features
AMP Vertical (SCA sequence)
40
787317-1
With polarization
Berg
40
71781
With polarization
Methode
40
512-220-91-101N
With polarization
Molex
40
717431040
With polarization
1.618
±
.003 in
(41.1
±
0.08 mm)
0.197
±
.003 in
(5.00
±
.08 mm)
2 places
1.28 in
(32.47 mm)
.64 in
(16.24 mm)
Pin 40
Pin 20
Pin 21
Pin 1
1.618
±
.003 in
(41.10
±
0.08 mm)
1.492
±
.009 in
(37.90
±
0.24 mm)
(6.71+0.18 mm)
(–0.25 mm)
0.264+.007 in
–.010 in
typ.
.05 in
(1.27 mm)
min.
0.226 in
(6.50 mm)
min.
0.024 in
(0.60 mm)
min.
0.039 in
(0.75 mm)
2 places
0.051
±
.006 in
(1.30
±
0.16 mm)
0.079
±
.010 in
(2.00
±
.25 mm)
Mating end
Housing
Contact (typ.)
.025 in (0.635 mm)
0.106
±
.010 in
(2.70
±
0.25 mm)
0.060
±
.010 in
(1.52
±
0.25 mm)
(initial point
of contact)
0.394
±
.004 in
(10.0
±
0.10 mm)