Celestica A2210, User Manual, Page: 68 / 76

SCSI SCA Connector
Figure 31 shows the connector used to connect the SCSI drive to the SCSI backplane. It is Molex 73829 or
equivalent. The pin assignments for this connector are listed in Table 9.
Figure 31. SCSI SCA Connector
Table 9. SCSI SCA Connector Pin Assignments
Pin Name Description Pin Name Description
1 +12V +12V power 41 GND Ground
2 +12V +12V power 42 GND Ground
3 +12V +12V power 43 GND Ground
4 +12V +12V power 44 Mated Drive mated
5 +3.3V +3.3V power 45 +3.3V +3.3V power
6 +3.3V +3.3V power 46 Diffsens Differential Sense
7 D11_L Data 11 - 47 D11_H Data 11 +
8 D10_L Data 10 - 48 D10_H Data 10 +
9 D9_L Data 9 - 49 D9_H Data 9 +
10 D8_L Data 8 - 50 D8_H Data 8 +
11 I/O_L I/O - 51 I/O_H I/O +
12 REQ_L Request - 52 REQ_H Request +
13 CD_L CD - 53 CD_H CD +
14 SEL_L Select - 54 SEL_H Select +
15 MSG_L Message - 55 MSG_H Message +
16 RST_L Reset - 56 RST_H Reset +
17 ACK_L Acknowledge - 57 ACK_H Acknowledge +
18 BSY_L Busy - 58 BSY_H Busy +
19 ATN_L Attn - 59 ATN_H Attn +
20 P0_L Parity 0 - 60 P0_H Parity 0 +
21 D7_L Data 7 - 61 D7_H Data 7 +
22 D6_L Data 6 - 62 D6_H Data 6 +
Appendix - 10