Product manual

Product Manual - Hawk 2 Family (Wide bus) SCSI-2 (Volume 1), Rev. A 57
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Table 11.6.3-1a. ST12400WD differential cable pin assignments (nonshielded connector)
Note. The minus sign next to the signals indicates asserted state is the low voltage of the two levels
used for logic signals
.
Connector Cable Connector
Signal Contact Conductor Contract Signal
Name* Number Number Number Name
+DB(12) 1 1 2 35 -DB(12)
+DB(13) 2 3 4 36 -DB(13)
+DB(14) 3 5 6 37 -DB(14)
+DB(15) 4 7 8 38 -DB(15)
+DB(P1) 5 9 10 39 -DB(P1)
Ground 6 11 12 40 Ground
+DB(0) 7 13 14 41 -DB(0)
+DB(1) 8 15 16 42 -DB(1)
+DB(2) 9 17 18 43 -DB(2)
+DB(3) 10 19 20 44 -DB(3)
+DB(4) 11 21 22 45 -DB(4)
+DB(5) 12 23 24 46 -DB(5)
+DB(6) 13 25 26 47 -DB(6)
+DB(7) 14 27 28 48 -DB(7)
+DB(P) 15 29 30 49 -DB(P)
DIFFSENS 16 31 32 50 Ground
TermPwr 17 33 34 51 TermPwr
TermPwr 18 35 36 52 TermPwr
Reserved 19 37 38 53 Reserved
+ATN 20 39 40 54 -ATN
Ground 21 41 42 55 Ground
+BSY 22 43 44 56 -BSY
+ACK 23 45 46 57 -ACK
+RST 24 47 48 58 -RST
+MSG 25 49 50 59 -MSG
+SEL 26 51 52 60 -SEL
+C/D 27 53 54 61 -C/D
+REQ 28 55 56 62 -REQ
+I/O 29 57 58 63 -I/O
Ground 30 59 60 64 Ground
+DB(8) 31 61 62 65 -DB(8)
+DB(9) 32 63 64 66 -DB(9)
+DB(10) 33 65 66 67 -DB(10)
+DB(11) 34 67 68 68 -DB(11)
Notes.1.The conductor number refers to the conductor position when using 0.025- inch centerline
flat ribbon cable. Other cable types may be used to implement equivalent contact assignments.
* See paragraph 11.6.4.1 for detailed electrical characteristics of these differential signals.