Seagate Elite 9, Product Manual

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64 Elite 9 Product Manual, Rev. C
Table 13. Differential P cable pin assignments
(non-shielded connector) for ST410800WD drives
+Signal name* Pin number –Signal name*
+DB (12) 1 35 –DB (12)
+DB (13) 2 36 –DB (13)
+DB (14) 3 37 –DB (14)
+DB (15) 4 38 –DB (15)
+DB (P1) 5 39 –DB (P1)
GROUND 6 40 GROUND
+DB (0) 7 41 –DB (0)
+DB (1) 8 42 –DB (1)
+DB (2) 9 43 –DB (2)
+DB (3) 10 44 –DB (3)
+DB (4) 11 45 –DB (4)
+DB (5) 12 46 –DB (5)
+DB (6) 13 47 –DB (6)
+DB (7) 14 48 –DB (7)
+DB (P) 15 49 –DB (P)
DIFFSENS 16 50 GROUND
TERMPWR 17 51 TERMPWR
TERMPWR 18 52 TERMPWR
RESERVED 19 53 RESERVED
+ATN 20 54 –ATN
GROUND 21 55 GROUND
+BSY 22 56 –BSY
+ACK 23 57 –ACK
+RST 24 58 –RST
+MSG 25 59 –MSG
+SEL 26 60 –SEL
+C/D 27 61 –C/D
+REQ 28 62 –REQ
+I/O 29 63 –I/O
GROUND 30 64 GROUND
+DB (8) 31 65 –DB (8)
+DB (9) 32 66 –DB (9)
+DB (10) 33 67 –DB (10)
+DB (11) 34 68 –DB 11)
Notes:
1. The minus sign next to a signal name indicates asserted state is the low
voltage.
2. Eight-bit devices (non-wide) connected to the P cable must 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) +DB (11). Connect all other signals
as defined.