IBM Ultrastar 36LZX, Specifications

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7.1.2.2 SCSI signal connector (80 pin SCA-2 model)
The 80 pin SCA-2 model uses a DDK connector which is compatible with SPI-3.
12V Ground
12V Ground
12V Ground
MATED 1
Opt 3.3 V charge/NC
DIFFSENS(*1)
+DB(11)
+DB(10)
+DB(9)
+DB(8)
+I/O
+REQ
+C/D
+SEL
+MSG
+RST
+ACK
+BSY
+ATN
+P_CRCA
+DB(7)
+DB(6)
+DB(5)
+DB(4)
+DB(3)
+DB(2)
+DB(1)
-DB(0)
+DB(P1)
+DB(15)
+DB(14)
+DB(13)
+DB(12)
MATED 2
5V Ground
5V Ground
ACTIVE LED OUT
DELAYED START
SCSI ID (1)
SCSI ID (3) 41
42
43
44
45
46
47
48
49
50
51
52
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80 12 Volt Charge
12 Volt
12 Volt
12 Volt
Opt 3.3 V/NC
Opt 3.3 V/NC
-DB(11)
-DB(10)
-DB(9)
-DB(8)
-I/O
-REQ
-C/D
-SEL
-MSG
-RST
-ACK
-BSY
-ATN
-P_CRCA
-DB(7)
-DB(6)
-DB(5)
-DB(4)
-DB(3)
-DB(2)
-DB(1)
-DB(0)
-DB(P1)
-DB(15)
-DB(14)
-DB(13)
-DB(12)
5 Volt
5 Volt
5 Volt Charge
Spindle Sync/NC
RMT START
SCSI ID (0)
SCSI ID (2) 01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
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Signal name Connector contact
number Signal name Connector contact
number
Figure 20. Table of signals
NOTE*1: HVD is not supported .
NOTE: SCA-2 connector is not mechanically compatible with the 68 pin “P” connector as defined in the
ANSI SCSI standard. The connector is intended for direct back plane attachment and is not intended to
be cable attached to the bus.
Ultrastar 36LZX hard disk drive specifications
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