Smart SFP micro OTDR

Smart SFP OTDR is a Gigabit Ethernet transceiver with built-in OTDR function.

Acting like a conventional SFP transceiver, once detecting optical fiber fault it automatically measures the distance to the fault point and reports it. Due to support of open REST API and traditional SNMP, it can be easily integrated into any monitoring system – NMS, OSS, NIMS, GIS or even SDN.

Smart SFP OTDR can be installed in any network equipment vendor for fast break point identification of the optical fiber and for real time L1 optical links monitoring in the mobile backhaul and ISP’s last mile.

It also can be considered as a cheap extension for hand-held testers for delivering to them new feature – detecting distance to the break point on the optical cable.



  • Instant fiber break point identification
  • Real time remote fiber monitoring
  • Reduce MTTR by locating fiber optic faults in seconds
  • Reduce OpEx by eliminating multiple false technician dispatches
  • Eliminate the need for separate low level fiber element monitoring system by integrating in high level management system (OSS, NMS)
  • Cheaper than standalone or rack-mounted remote OTDR unit
  • No free rack space required
  • No separate power supply required

Usage scheme


Key features:

  • Standard Gigabit Ethernet SFP
  • Integrated micro OTDR
  • Auto, manual or scheduled switching between SFP and OTDR modes
  • Remote IP management
  • Historical data local storage
  • Single wavelength single fiber operation
  • Wavelength of Tx and Rx can be 1310 or 1550 nm
  • Single fiber, up to 40 km
  • Installation in pairs
  • Simple and cheap remote end SFP transceiver
  • Break point detection accuracy 50 meters

General characteristics:

  • Line rate packet processing
  • I2C management
  • Loaned IP
  • OS Debian 10 (Buster), Linux kernel 4.14.22
  • Standard software installation
  • Remote software update
  • Max frame size 9600 bytes
  • 1000BASE-LX and MSA compliant
  • Digital Diagnostics Monitoring (DDM)
  • Multi-vendor compatibility
  • Compatible with any network equipment

Documents & Downloads