21
The circuit in the table below is used to interface phase inputs A, A, B, B, Z, and Z
(for the X and Y).
Item Specification Circuit Configuration
Signal level EIA RS-422-A
Standards
5 V
Input impedance 220 Ω
Phase A, B, or Z
Phase A, B, or Z
1/2W
220 Ω
Response frequency 250 kpps max.
Line receiver
The circuit in the table below is used to interface outputs OUT (X and Y).
Item Specification Circuit Configuration
Output voltage 0 to ± 10 V
+15 V
X to Y OUT
Load impedance 10 KΩ min.
–15 V
X to Y AGND
Interface Circuits
Section 2-4