How to Spindle Synchronized Motion

I recently bought a Lichuan A4 Servo Driver and I am trying to understand how to connect it to LinuxCNC to achieve Spindle Synchronized Motion. Reading this Spindle Example

Spindle feedback is needed by EMC to perform any spindle coordinated motions like threading and constant surface speed. The StepConf Wizard can perform the connections for you if you select Encoder Phase A and Encoder Index as inputs.

Hardware assumptions:

An encoder is connected to the spindle and puts out 100 pulses per revolution on phase A
The encoder A phase is connected to the parallel port pin 10
The encoder index pulse is connected to the parallel port pin 11

I am currently using the parallel breakout board and the spindle driver manual looks like this :



There is a Pulse Feedback output circuit with a Frequency division Filter. I assume the Frequency division Filter can be used to output 100 pulses per revolution to LinuxCNC ?

There is also a circuit to use a 26LS32 to get a Phase Output. Do I connect the output of the 26LS32 to the input pin of the breakout board for each phase ?



The other question is there are only Phase A , Phase B and Index spindle input pins where would i connect the Spindle index input pin to ?



Any help or explanation on this topic

Thank you for the help ! I am new to all of this and just want to make sure my understanding is correct. You say the Z phase and Index spindle pin is the same do i just use the Z output after it went through the DIFFERENTIAL LINE RECEIVER or do i use the CZ pin as the spindle index pin ? Complete Manual

I am using the Mach3 BOB . I already bought the 26LS32 IC, reading up on its function it seems to remove noise from any interference to output a clean signal. My volt meter reads -12V to 12V from ground on the Positive and Negative Servo Driver Phase Pins, so i assume that would be too much for the BOB to handle.The 26LS32 output is 5V.

After connecting the 26LS32 up with some LEDs the Phase A and Phase B act like a Binary Counter and The Phase Z(Spindle index) will stay on and only switch off and then back on again at a certain position on the motor shaft after making 1 rotation.

Does that behavior sound right?