©
National Instruments Corporation
11
SCC-68 User Guide
SCC-68 Features
The following sections describe the hardware features of the SCC-68.
Figure 6.
SCC-68 Features
1
SCC Slots
2
SCC Screw Terminals
3
68-Pin I/O Connector
4
External Power Switch
5
External Power Screw Terminals
6
DIO Screw Terminals
7
AI Screw Terminals
8
Bus Screw Terminals
9
AO Screw Terminals
10 Strain-Relief Wire Entry
SCC
Mod 1
SCC
Mod 2
SCC
Mod 3
SCC
Mod 4
ROUTE SCC SIGNAL WIRES
ON THIS SIDE
SCC Mod 1
SCC Mod 2
SCC Mod 3
SCC Mod 4
USE SCC CONNECTOR BACKSHELL FOR HAZARDOUS
LIVE SIGNALS (>42.4 Vpk / 60VDC)
68
34
24
4
52
33
66
27
7
17
65
31
29
9
49
30
63
32
12
47
13
39
15
1
18
40
35
2
36
46
44
45
8
50
53
69
72
73
70
71
3
37
38
5
6
41
42
43
10
11
48
16
51
19
74
75
76
77
78
79
80
81
82
83
57
23
56
25
58
59
60
26
64
28
61
62
67
20
22
54
21
55
NI SCC-68
10
3
2
4
1
7
8
9
6
5
SCC-68
FOR PATENTS: NI.COM/PATENTS
SELF PO
WER
(DEF
A
U
L
T
)
EXTERNAL
PO
WER
+5V
GND
FRONT
SW1
4.75-5.25V
2A MAX
