SFP with Integrated Network Monitoring Capability 1000Base-LX/100Base-FX Simplex SC

PART #  842188
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The TN-SFP-BC55 is an intelligent device in Small Form Factor (SFP) with integrated OTDR (Optical Time-Domain Reflectometer) function. As a part of Transition Networks Smart SFP family, it offers the simple way of assessment or monitoring the status of the physical fiber infrastructure. The deployment of this capability could be in a single-ended manner, or both ends as required.

SFP with Reflection Immune Operation, 1000Base-LX/100Base-FX, 1550nm single fiber single-mode (Simplex SC) [40km/24.9mi.,] Link Budget: 20.0 dB


  • 1.25Gbps/125Mbps bi-directional data link
  • Compliant with IEEE 802.3z 1000Base-LX & IEEE 802.3 100Base-FX
  • Single +3.3V Power Supply
  • RoHS Compliant (all models)
  • MSA Compliant
  • Integrated OTDR (Optical Time-Domain Reflectometer) function
  • Integrated Refion Immune Operation
  • Any Network Type
  • SFF-8472 Digital Diagnostic Function (DMI)
  • 55 dB Dynamic Range for the OTDR
  • Dead Zone of 30 meters or less
  • Resolution of 10 meters or Better
  • Accuracy of 50 meters or Better
  • Class 1 Laser International Safety Srd IEC 60825 Compliant


Port 1 Device Technology 1000BASE-LX
UNSPSC Code 43201553

Spec Sheet

Spec Sheet

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