Seagate ST15150DC, Product Manual

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82 ST15150N/ND/W/WD/WC/DC Product Manual, Rev. D
Table 18. SCA contact assignments for ST15150WC drives
Signal Connector Connector Signal
name contact number contact number name
12 VOLT 1 41 12V GROUND
12 VOLT 2 42 12V GROUND
12 VOLT 3 43 12V GROUND
12 VOLT 4 44 12V GROUND
RESERVED/NC 5 45 RESERVED/NC
RESERVED/NC 6 46 GROUND
DB (11) 7 47 GROUND
DB (10) 8 48 GROUND
DB (9) 9 49 GROUND
DB (8) 10 50 GROUND
I/O 11 51 GROUND
REQ 12 52 GROUND
C/D 13 53 GROUND
SEL 14 54 GROUND
MSG 15 55 GROUND
RST 16 56 GROUND
ACK 17 57 GROUND
BSY 18 58 GROUND
ATN 19 59 GROUND
DB (P0) 20 60 GROUND
DB (7) 21 61 GROUND
DB (6) 22 62 GROUND
DB (5) 23 63 GROUND
DB (4) 24 64 GROUND
DB (3) 25 65 GROUND
DB (2) 26 66 GROUND
DB (1) 27 67 GROUND
DB (0) 28 68 GROUND
DB (P1) 29 69 GROUND
DB (15) 30 70 GROUND
DB (14) 31 71 GROUND
DB (13) 32 72 GROUND
DB (12) 33 73 GROUND
5 VOLT 34 74 5V GROUND
5 VOLT 35 75 5V GROUND
5 VOLT 36 76 5V GROUND
SYNC 37 77 ACTIVE LED OUT
RMT_START 38 78 DLYD_START
SCSI ID(0) 39 79 SCSI ID(1)
SCSI ID(2) 40 80 SCSI ID(3)
Notes:
1. The hyphen preceding a signal name indicates that signal is active low.
2. Eight-bit devices that connect to the P cable should leave the following
signals open:
−
DB(12),
−
DB(13),
−
DB(14),
−
DB(15),
−
DB(P1),
−
DB(8),
−
DB(9),
−
DB(10),
−
DB(11), DB(12), DB(13), DB(14), DB(15), DB(P1),
DB(8), DB(9), DB(10), and DB(11). All other signals should be connected
as defined.