Connecting Input Signals; Encoder Input Circuit - Contec SMC-8DL-PCI User Manual

Connecting Input Signals

Encoder input circuit

Encoder input circuit on this product is illustrated below. The signal input is a differential input capable
of connecting a line driver output, TTL level output and open-collector output.
Connection with the differential output
Vcc
AM26LS31 or
equivalence to it
Vcc
AM26LS31 or
equivalence to it
Vcc
AM26LS31 or
equivalence to it
Figure 3.10. Encoder input circuit
SMC-4DL-PCI, SMC-8DL-PCI
Board
Vcc
A+
A-
Vcc
B+
B-
Vcc
Z+
Z-
GND
Driver Unit
Phase A+
Phase A-
Phase B+
Phase B-
Phase Z+
Phase Z-
GND
3. External Connection
35