NOTE
□ The +12 V power supply on the I/O connector(s) can be used for
powering drivers requiring a power supply.
□ No external resistors are required. However, to obtain the best noise
immunity with 12 V and 24 V signaling, it is recommended to insert a
series resistor in the circuit. The recommended resistor values are:
4.7k Ohms for 12 V signaling and 10k Ohms for 24 V signaling.