| MRV Products 
 
 
  
 Fiber DriverT Self Healing/Redundant Link modules are 
for mission critical applications that demand maximum uptime. These modules have 
one copper input and two fiber outputs. One functions as a primary path and the 
other as a secondary path. In the event of a link loss, the data will be 
automatically switched from the primary path to the secondary path. The 
secondary path can also be used for routing based on time of day parameters 
under the control of the management system.
 
 These modules use a link 
detect mechanism that switches over to the secondary link in microseconds 
directed by circuitry on the module itself. Doing this without any OSPF or 
Spanning Tree induced network topology modification eliminates long 
reconvergence times and removes the possibility of data loss. If the secondary 
path fails, an alarm will be generated by the management system indicating that 
there is no redundancy available. This information is gathered regardless of the 
status of the network.
 
 Self Healing/Redundant Link modules are offered 
with Dual Fiber and Single Fiber links. This provides the same copper to fiber 
conversion while gaining link redundancy using the existing fiber pair. Self 
Healing/Redundant Link Modules help service providers fulfill Service Level 
Agreements. They are also used in Enterprise networks where the cost of downtime 
requires redundancy.
 |  | MRV Products 
 By Category
  Out-of-Band Console & Power Management
 Pluggables
 Wave Division Multiplexing
 
 By Product Line
  OptiSwitch
 TereScope
 
 
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