Each optical transceiver has a tracking capability to automatically adjust alignment for building sway and thermal expansion. While the maximum transmission distance is 800m per optical link, the average link for all weather availability is between 200 - 500 m depending on geographical locations. The maximum capacity per link currently is full duplex 622Mbps and will soon scale up to 2.5Gbps. The OPTera Metro 2400 uses ATM PNNI 1.0 to establish VPCs within the Mesh Network and to re-route VPCs within the Mesh Network in the event of link or node failure. The OPTera Metro 2400 operates with LEC's existing HP OpenView or Preside network management systems.
Fogs give by far the most atmospheric attenuation.
Scintillation effect is insignificant if the distance is less than 500m but increases rapidly beyond that. OPTera Metro 2400 has short links that are designed to deliver carrier grade link availability even under the most serve weather conditions. The maximum link length allowed is short, typically 200 to 500 meters as defined by the specific annual weather patterns in a particular city. The mesh network provides multiple paths for transmission around temporary, localized link outages. The most important attribute for a metro access network is connectivity.