8-5
Compaq Professional Workstation AP400 Maintenance and Service Guide
Table 8-7
Keyboard
Connector and Icon (Orange)
Pin
Signal
6
3
4
5
2
1
KEY
1
2
3
4
5
6
Data
Unused
Ground
+5 VDC
Clock
Reserved
Table 8-8
Wide Ultra and Wide Ultra2 SCSI Connector
Connector and Icon
Signal Name
Signal Name
Pin
Signal Ended Mode
LVD Mode
Pin
Signal Ended Mode
LVD Mode
1
Ground
+DB12
35
Ground
TERMPWR
2
-DB12
-DB12
36
TERMPWR
TERMPWR
3
Ground
+DB13
37
Ground
OPEN
4
-DB13
-DB13
38
OPEN
OPEN
5
Ground
+DB14
39
Ground
Ground
6
-DB14
-DB14
40
Ground
Ground
7
Ground
+DB15
41
Ground
+ATN
8
-DB15
-DB15
42
-ATN
-ATN
9
Ground
+DBP1
43
Ground
Ground
10
-DBP1
-DBP1
44
Ground
Ground
11
Ground
+DB0
45
Ground
+BSY
12
-DB0
-DB0
46
-BSY
-BSY
13
Ground
+DB1
47
Ground
+ACK
14
-DB1
-DB1
48
-ACK
-ACK
15
Ground
+DB2
49
Ground
+RST
16
-DB2
-DB2
50
-RST
-RST
17
Ground
+DB3
51
Ground
+MSG
18
-DB3
-DB3
52
-MSG
-MSG
Continued