There are two synchronisation options available:

OctoPre as Clock Source Leader:

Connect the OctoPre to the digital device via ADAT and ensure that the receiving device is set to receive clock from the ADAT input (also ensuring the sample rates on both devices are matched). The OctoPre Clock Source should be set to Internal and the Locked LED will light up Green.

OctoPre as Clock Source Follower:

Connect the OctoPre to the digital device via ADAT and connect a BNC cable (from the receiving device or any other device in the digital chain) to the Word Clock input (also ensuring the sample rates on both devices are matched). The OctoPre Clock Source should be set to Word Clock and the Locked LED will light up Green.

In both of the above situations, all devices should be set to the same sample rate.