Product manual

80 Barracuda 2LP Product Manual, Rev. D
Table 16. Single-ended contact assignments (P cable)
for ST31250W and ST32550W drives
Signal Connector Connector Signal
name contact number contact number name
GROUND 1 35 –DB (12)
GROUND 2 36 –DB (13)
GROUND 3 37 –DB (14)
GROUND 4 38 –DB (15)
GROUND 5 39 –DB (P1)
GROUND 6 40 –DB (0)
GROUND 7 41 –DB (1)
GROUND 8 42 –DB (2)
GROUND 9 43 –DB (3)
GROUND 10 44 –DB (4)
GROUND 11 45 –DB (5)
GROUND 12 46 –DB (6)
GROUND 13 47 –DB (7)
GROUND 14 48 –DB (P)
GROUND 15 49 GROUND
GROUND 16 50 GROUND
TERMPWR 17 51 TERMPWR
TERMPWR 18 52 TERMPWR
RESERVED 19 53 RESERVED
GROUND 20 54 GROUND
GROUND 21 55 –ATN
GROUND 22 56 GROUND
GROUND 23 57 –BSY
GROUND 24 58 –ACK
GROUND 25 59 –RST
GROUND 26 60 –MSG
GROUND 27 61 –SEL
GROUND 28 62 –C/D
GROUND 29 63 –REQ
GROUND 30 64 –I/O
GROUND 31 65 –DB (8)
GROUND 32 66 –DB (9)
GROUND 33 67 –DB (10)
GROUND 34 68 –DB (11)
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(8) –DB(9) –DB(10) –DB(11) –DB(12) –DB(13) –DB(14)
–DB(15) –DB(P1). All other signals should be connected as defined.