External/Internal exhaust gas
To install an external exhaust gas, you need to connect the output of the external reference generator to the REF IN input to the RITM SDR USRP.
Cascade system
It is allowed to implement a cascade synchronization scheme for RITM SDR USRP devices, in which the output of the reference signal REF OUT of the master device is connected to the external clocking input REF IN of the slave device. This topology allows you to broadcast a single frequency standard along the instrument chain. An example is shown in the figure.
