Adtech CNC9 Series Maintenance Manual page 214

As shown in the figure below, AB phase decoder input signal uses differential input connection; if common
anode connection is used, the positive ends of phase A and phase B must be connected; for common
cathode connection, the negative ends of phase A and phase B must be connected.
Differential connection is as follows:
5V power supply is externally provided.
Common anode connection is as follows:
The power voltage is determined by encoder. If 5V power supply is used, resistor R will be unnecessary.
For 12V power supply, please use 1K-2K resistor, and for 24V power supply, please use 2K-5K resistor.
Suggestion:
Please use differential output encoder to ensure better anti-interference when the line is long.
12.2.7. RS232 interface (96 series XS9, 99 series XS11), RS-485 interface (9810
9650) and RJ45 network interface (9 series)
Serial communication interface ---9-core signal socket (male)
ADTECH9 Series CNC Maintenance Manual
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