What are the CLOCK OUT specifications?

The terminal is a stereo mini-jack and outputs START/STOP and CLOCK signals.
The voltage levels of each signal are 5 V.
You can select CLOCK signals from 5 output formats: 1ppqn, 2ppqn, 4ppqn, 24ppqn, and 48ppqn.
And, you can select CLOCK Polarity from Negative trigger ( − ) or Positive trigger ( +)

You can change these settings in the [CLOCK] setting category of the GLOBAL menu.
For details, please refer to "[CLOCK] setting" in "GLOBAL settings" in the Operating Instructions.
You can download the Operating Instructions from the AlphaTheta support page https://www.pioneerdj.com/en/support/documents/production/toraiz-squid/.