Hitachi HUS103036FL3800 User Manual
Page 35
Drawing No. Sheet No. Revision
K6610091
35/43 2005/2/23
Table 11.3 Pin assignment of SCSI Bus Connector C1
(SCA-2, Single-ended mode)
Signal Name
Connector contact No.
Signal Name
12V 1
41
GND(12V
Return)
12V 2
42
GND(12V
Return)
12V 3
43
GND(12V
Return)
12V 4
44
MATED1
(Note
2)
Open 5
45 Open
Open 6
46
DIFFSENS
-DB(11) 7
47 GND
-DB(10) 8
48 GND
-DB(9) 9
49 GND
-DB(8) 10
50 GND
-I/O 11
51 GND
-REQ 12
52 GND
-C/D 13
53 GND
-SEL 14
54 GND
-MSG 15
55 GND
-RST 16
56 GND
-ACK 17
57 GND
-BSY 18
58 GND
-ATN 19
59 GND
-DB(P0) 20
60 GND
-DB(7) 21
61 GND
-DB(6) 22
62 GND
-DB(5) 23
63 GND
-DB(4) 24
64 GND
-DB(3) 25
65 GND
-DB(2) 26
66 GND
-DB(1) 27
67 GND
-DB(0) 28
68 GND
-DB(P1) 29
69 GND
-DB(15) 30
70 GND
-DB(14) 31
71 GND
-DB(13) 32
72 GND
-DB(12) 33
73 GND
5V 34
74
MATED2
(Note
2)
5V 35
75
GND(5V
Return)
5V 36
76
GND(5V
Return)
Reserved
37
77
LED(with 0 ohm)
AUTO START (Note 1)
38
78
-DELAY START (Note 1)
-ID0 (Note 1)
39
79
-ID1 (Note 1)
-ID2 (Note 1)
40
80
-ID3 (Note 1)
Note 1 When this signal is held to ground, it is regarded as LOW. When this signal is
open, it is regarded as HIGH. It can be driven by open collector driver.
Do not pull up this signal.
Note 2 The MATED2 signal is tied to ground, and the MATED1 signal is pulled up to
HIGH level in the drive. When the drive detects the MATED1 signal is held to
LOW, the drive regards the connection has completed. When the drive detects
the MATED1 signal is held to HIGH, it regards the connection is incomplete.