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This Product has been End-Of-Life. Please reference the EOL policy:

Sangoma STM1Mux STM-1/OC-3 terminal multiplexer combines up to 63 E1 or 84 T1 tributary channels into a single STM-1/OC-3 link, extending services point-to-point over fiber to remote locations. 

Competitive Feature

  • The most impressive feature of the STM1Mux is the 1U rackmount size.
    1U chassis provides direct RJ45 E1/T1 connection as well as fiber SDH/OC3 uplink connection. 
    Any competitive products requires at least 4U or 6U in order to expose all 84 T1 or 63E1 ports using amphenol connectors.




  • SDH/SONET terminal multiplexers connect lower rate PDH services over a single STM-1/OC-3 (155 Mbps) link 
  • Channelized STM-1/OC-3 main link with standard fiber optic (single mode, multimode and WDM) interface 
  • Multiplexes up to 63 E1 channels or 84 T1 tributary lines  
  • Provides a demarcation point between the carrier network and the customer network Includes 
  • RS-232 and Ethernet management ports 
    • Configuration, service, performance, security, and fault management via ASCII terminal
    • Telnet network management systems 
  • Range up to 2 km with included SFP module (1310 nm, LC duplex fiber connector, Single mode fiber). 
  • Plug-and-play installation and operation 
  • Compact: 1U-high, 19-inch wide



  • The STM1Mux comes with default Fiber Transiver 
  • One must check with the Telco what Fiber Transiver is required for specific connection




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