©
National Instruments Corporation
B-1
NI PCI-7342 Hardware User Manual
B
Cable Connector Descriptions
This appendix describes the connector pinout for the cables that connect
to your PCI-7342 controller.
Figures B-1 and B-2 show the pin assignments for the stepper and servo
50-pin motion connectors. These connectors are available when you use
the SH68-C68-S shielded cable assembly and the 68M-50F step/servo
bulkhead cable adapter.
Figure B-1.
50-Pin Stepper Connector Pin Assignment
Caution
Do
not
connect NC (not connected) signals. Connecting these signals could cause
permanent damage to your motion controller.
Digital Ground
NC
NC
NC
Digital Ground
Digital Ground
NC
NC
NC
NC
Digital Ground
Digital Ground
NC
Axis 2 Inhibit
Trigger/Breakpoint 2
Axis 2 Home Switch
Digital Ground
Digital Ground
Axis 2 Dir (CCW)
Axis 1 Inhibit
Trigger/Breakpoint 1
Axis 1 Home Switch
Digital Ground
Digital Ground
Axis 1 Dir (CCW)
Host +5 V
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
Axis 2 Reverse Limit Switch
Axis 2 Forward Limit Switch
Axis 2 Encoder Index
Axis 2 Encoder Phase B
Axis 2 Encoder Phase A
Axis 2 Step (CW)
Axis 1 Reverse Limit Switch
Axis 1 Forward Limit Switch
Axis 1 Encoder Index
Axis 1 Encoder Phase B
Axis 1 Encoder Phase A
Axis 1 Step (CW)
49 50
47 48
45 46
43 44
41 42
39 40
37 38
35 36
33 34
31 32
29 30
27 28
25 26
23 24
21 22
19 20
17 18
15 16
13 14
11 12
9
10
7
8
5
6
3
4
1
2
