In the digital word, tight synchronisation is crucial. All connected G line devices have Word clocks synchronized over the network. The source of Word clock can be external or internal. Internal clock can be distributed to external devices over the Wordclock module with 3 BNC outputs. The module also includes one Word clock input for the external source of the clock. If you have multiple Base boxes in the network, only a single Wordclock module for external WC source is required. If you are running G line network without any other connected digital devices, the Wordclock module is not required.