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Optimux-1551SDH/SONET Terminal Multiplexer

Fiber Multiplexer for 63E1 or 84T1 over STM-1/OC-3

The Optimux-1551 and Optimux-1553 are plug-and-play SDH/SONET terminal multiplexers, delivering multiple PDH tributary channels over a single STM-1/OC-3 (155 Mbps) link.


  • Up to 63 E1 or 84 T1 tributary channels (Optimux-1551) or three E3 or T3 user interfaces (Optimux-1553)
  • Channelized STM-1/OC-3 main link with standard fiber optic (single mode, multimode and WDM) or coaxial interface
  • 1+1 unidirectional automatic protection switching (APS) on STM-1/OC-3 uplink; 1+1 protection on DS1 or DS3 tributaries and power supply modules
  • Provides a demarcation point between the carrier and private networks
  • Full management support for fault, configuration, performance, and security via RADview-EMS
  • Range up to 80 km (50 miles)