Connect the Ext. Clock output port on the 96 I/O to the Slave Clock In on the Legacy peripheral. The Legacy peripheral will switch to Slave mode once the proper clock is outputting from the 96 I/O. Always use the Ext. Clock Out port of the same I/O to which the Legacy peripheral is attached.If using multiple MIX-series audio interfaces, connect the Slave Clock Out of the first interface to the Slave Clock In of the second interface.