8. CONNECTOR POSITIONS AND PIN ARRANGEMENT
8.1 System Controller
J401
Pin No.
Signal
IN/OUT
Function
1
B25
GND
––
GND
2
A25
ATN
IN
SCSI control signal (Attention)
3
B24
GND
––
GND
4
A24
GND
––
GND
5
B23
GND
––
GND
6
A23
BSY
IN/OUT
SCSI control signal (Busy)
7
B22
GND
––
GND
8
A22
ACK
IN
SCSI control signal (Acknowledge)
9
B21
GND
––
GND
10
A21
RST
IN
SCSI control signal (Reset)
11
B20
GND
––
GND
12
A20
MSG
OUT
SCSI control signal (Message)
13
B19
GND
––
GND
14
A19
SEL
IN/OUT
SCSI control signal (Select)
15
B18
GND
––
GND
16
A18
C/D
OUT
SCSI control signal (Control/Data)
17
B17
GND
––
GND
18
A17
REQ
OUT
SCSI control signal (Request)
19
B16
GND
––
GND
20
A16
I/O
OUT
SCSI control signal (Input/Output)
Part 5: Maintenance
BJ-W9000
5-88
J401
J403
J404
1
J406
J405
J408
J409
J407
J410
J411
J412
4 1 4
1
4
A1
A1
A40
A40
B1 B40
B40
1
15
16
30
1
20
B1
A1
B1
A30
B30
A1
B1
A25
B25
A1
B1
A40
B40
A1
B1
A40
B40
Figure 5-38 System Controller
Summary of Contents for BJ-W9000
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