NTT Advanced Technology Announces The Availability Of A Bypass Switch Module To Protect Network Services During Natural Disasters And Power Outages

NTT Advanced Technology, a technology integrator that commercializes the research results of NTT Labs, is promoting its redundancy and bypass switch as a solution to help prevent service disruptions during natural disasters and electrical power outages. During an electrical outage, network equipment can suddenly lose power and stop providing or transmitting data services. The NSW Optical Switch, with plug-in redundancy and bypass switch modules, is designed to switch the physical layer of a network to a backup or bypass route to allow network services to continue. 

The bypass switch module has many features to keep network services available during a power outage. When electrical power is lost, the bypass module detects the loss of power.  Automatically, the bypass module changes the optical path from the local equipment path to the bypass path using an internal battery.  The bypass module maintains the data path even when there is no electric power.  After restoration of electric power, the bypass module will wait a configured amount of time to allow other network equipment to fully turn on.  After this designated timer delay, the bypass module will automatically switch the optical path from the bypass route to the optical path with the local equipment, restoring network services to that location.

The NSW Optical Switch, with multiple, interchangeable redundancy and bypass switch modules, is a flexible device to help protect a network against natural disasters and other unexpected events like cable cuts and failed devices. The modules can also switch after receiving an SNMP alert trigger, and the switching time is as small as 10msec or less, which minimizes the interruption on data service users.

For more information about the NSW Optical Switch and bypass module, please see Optical Switch Unit: NSW Series