Viavi Solutions introduces the market’s most compact OTDR solution for DWDM or Hybrid CWDM/DWDM network testing High-performance DWDM OTDR solution for deployment, in-service maintenance and troubleshooting of DWDM fiber networks Viavi Solutions has introduced the 4100-series DWDM OTDR for its T-BERD/MTS-2000, 4000, and 5800 platforms. As DWDM technology continues to penetrate into access networks, technicians

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