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The StingRay 200 series RF over fibre indoor and outdoor chassis can be configured to provide 1+1 redundancy, with the addition of a 2-way splitter and 2x1 switch module.
Redundancy provides additional resilience for uplink and downlink transmissions over fibre. If one fibre link fails, the signal is automatically switched to the redundant path.
StingRay 1+1 redundant fibre link comprises an active 2-way splitter module with a pair of TX modules at the transmit end in one chassis, and a high reliability 2x1 switch module with a pair of RX modules at the receive end in another chassis.
Two exact copies of the RF signal are sent via the splitter. RF detection on the inputs of the 2x1 switch measures both signals and selects the one with the highest power.