A novel and additional feature of the sat-nms LFTXRX system is the capability to switch complete optical links in a 1:1 Redundancy and restore operation within a second if one of the optical links gets defective. This can effectively increase the availability of optical transmission systems. In order to provide this feature the LFTXRX chassis can be equipped with a sat-nms LFSW switch card at the RX Unit and a internal or external 1:2 Splitter at the TX Unit and the software will support the redundancy switching capability.
The redundancy switching capability is defined by the use of the sat-nms LFSW switch card in the sat-nms LFTXRX chassis and how the switches are route internally to that card. There is no limitation of the use of the switching card, but at least it will be limited by the available 20 slots. Therefore maximum six ([2*RX+1*SW]*6 = 18 Slots) 1:1 Redundancy Links can be installed in one chassis. There are two free slots in this 6x 1:1 Red. configuration available for additional non redundant Links.
This configuration will be defined in the 'config' page of the M&C software via the web browser interface.
Please refere to the following bockdiagram to get a overview how one Redundant Link is build.