Ultrastar 36LZX (FC-AL)
Electrical interface specifications |
Models: DDYF-T36950, T18350, T09170 |
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FC-AL connector (SCA-2)
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The Ultrastar 36LZX uses the
40-pin SCA-2 connector defined by the ANSI SFF-8045
Specification. SFF-8067 will also be supported. The only
difference between SFF-8045 and SFF-8067 is the
Enclosure Service Interface. The drive will
'discover' the level of Enclosure Service Interface
supported by the enclosure and use the proper level for
enclosure communication. This 'discovery' process is
defined in SFF-8067 specification. |
It is expected that the drive will be used in an
environment which uses a common connector structure for
racking disk drives in a cabinet. The connector allows
for plugging a drive directly into a back plane by
providing the necessary electrical connection.
Mechanical stability and device retention must be
provided by some other mechanism outside the drive. |
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Signal descriptions
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| Signal name |
Pin |
Signal name |
| -ENBL BYP CH1 |
1 |
21 |
12V DC Charge |
| 12 Volts DC |
2 |
22 |
12V DC Ground |
| 12 Volts DC |
3 |
23 |
12V DC Ground |
| 12 Volts DC |
4 |
24 |
+Port 1_In |
| -Parallel ESI |
5* |
25 |
-Port 1_In |
| -Drive Present |
6 |
26 |
12V DC Ground |
| Ready LED Out |
7 |
27 |
+Port 2_In |
| Spindle Sync |
8 |
28 |
-Port 2_In |
| Start_1 / Mated |
9 |
29 |
12V DC Ground |
| Start_2 / Mated |
10 |
30 |
+Port 1_Out |
| -ENBL BYP CH2 |
11 |
31 |
-Port 1_Out |
| Sel_6 / -EFW |
12* |
32 |
5V DC Ground |
| Sel_5 / -P_ESI_5 |
13* |
33 |
+Port 2_Out |
| Sel_4 / -P_ESI_4 |
14* |
34 |
-Port 2_Out |
| Sel_3 / -P_ESI_3 |
15* |
35 |
5V DC Ground |
| Fault LED Out |
16 |
36* |
Sel_2 / -P_ESI_2 |
| Dev_Cntrl_Code_2 |
17 |
37* |
Sel_1 / -P_ESI_1 |
| Dev_Cntrl_Code_1 |
18 |
38* |
Sel_0 / -P_ESI_0 |
| 5 Volts DC |
19 |
39 |
Dev_Cntrl_Code_0 |
| 5 Volts DC |
20 |
40 |
5V DC Charge |
*The definition changes for the ANSI SFF-8067 40-pin SCA-2 connector. |
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