National Instruments NI 9512, Operating Instructions Manual, Page: 14 / 39

NI 9512 Operating Instructions and Specifications
14 ni.com
applications. Fig u res 7 and 8 show simplified schematic diagrams
of the encoder inp u t circ u it connected to differential and
single-ended encoder o u tp u ts.
Figure 7. Differential Encoder Input Circuit
Figure 8. Single-Ended Encoder Input Circuit
Receiver
Phase +
Phase –
Encoder NI 9512
+5 V
COM
Receiver
Phase+
Encoder NI 9512
No
Connection
Phase–
+5 V
COM
+5 V
Com