Service Reference Guide, dc5100
376220-001
A–5
Connector Pin Assignments
Ultra SCSI
Connector and Icon
Pin
Signal
Pin
Signal
Pin
Signal
Pin
Signal
1-11
12
13
14
Ground
Reserved
Open
Reserved
29
30
31
32
DB3
DB4
DB5
DB6
37
38
39
40
Reserved
TERMPWR
Reserved
Ground
45
46
47
48
RST #
MSG #
SEL #
C/D
15-25
26
27
28
Ground
DB0
DB1
DB2
33
34
35
36
DB7
DBP
Ground
Ground
41
42
43
44
ATN #
Ground
BSY #
ACK #
49
50
REQ #
Input/Output
External Infrared Transceiver
Connector and Icon
Pin
Signal
Pin
Signal
Pin
Signal
1
2
3
Transmit
Receive
Ground
4
5
6
5V
Mode
Not Used
7
8
Not Used
Not Used
Monitor
Connector and Icon
Pin
Signal
Pin
Signal
Pin
Signal
1
2
3
Red Analog
Green Analog
Blue Analog
6
7
8
Ground
Ground
Ground
11
12
13
Not used
DDC Serial Data
Horizontal Sync
4
5
Not used
Ground
9
10
+5V (fused)
Ground
14
15
Vertical Sync
DDC Serial Clock