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CS260 Contractor Series OTDR

Home FIBRE TEST & CLEANING OTDRs - Mini CS260 Contractor Series OTDR
CS260 Contractor Series OTDR
CS260 Contractor Series OTDRĀ 

CS260 Contractor Series Handheld Troubleshooting OTDRs


CS260 Contractor Series handheld OTDRs enable cost-effective troubleshooting of FTTx PONs and point-to-point metro/access networks.  Two models are offered:

CS260-10 FTTx PON Activation and Troubleshooting OTDR:  1625 nm Live PON OTDR providing 35 dB dynamic range, best-in-class 0.8 m event and 3.5 m attenuation dead zones, integrated PON power meter and Visual Fault Locator (VFL).

CS260-20 Metro/Access Troubleshooting OTDR:  1310/1550 nm OTDR with 28 dB dynamic range, 0.8 m event and 3.5 m attenuation dead zones plus integrated Visual Fault Locator.

The CS260-10 and CS260-20 are purpose-built for optical network activation and troubleshooting tasks. With its integrated PON power meter, the CS260-10 enables verification of downstream 1490 and/or 1550 nm power levels at an FTTx PON ONU or ONT. If downstream signals are absent or power is too low, the CS260-10’s 1625 nm Live PON OTDR allows a technician to scan the network from the ONU/ONT or a network access point to locate fiber faults such as macro-bends, breaks, poor splices and dirty or damaged connectors. The live PON OTDR utilizes an out-of-band 1625 nm wavelength to prevent disrupting the 1310, 1490 and 1550 nm signals present on an in-service FTTx PON.

The CS260-20 is designed to troubleshoot point-to-point metro/access networks operating in the 1310 and/or 1550 nm wavelength regions. Its short dead zones enable precise location of fiber faults. With 28 dB dynamic range, the CS260-20 can locate faults in networks up to 60 km (40 miles) in length.

CS260s are derivatives of AFL’s popular OFL280 and FLX380 FlexTester families, offering the same ease-of-use, high-contrast indoor/outdoor display and over 12 hours of continuous battery operation. Both models also include an integrated VFL (visible red laser) designed to visually pinpoint the location of macro-bends or breaks in splice closures, access terminals and splitter cabinets.

Over 1000 OTDR test results may be saved internally in industry-standard .SOR file format.  Stored OTDR results may be transferred to PC via USB port for viewing, analysis, and professional report generation using included Windows® compatible TRM® 2.0 Basic Test Results Manager software.


  • CS260-10: 1625 nm, 35 dB FTTx Live PON OTDR with integrated PON Power Meter
  • CS260-20: 1310/1550 nm, 28 dB Metro/Access OTDR
  • 0.8 m event, 3.5 m attenuation dead zones
  • Auto, Expert, Real Time and PON OTDR modes
  • Integrated Visual Fault Locator (VFL)
  • Rugged, lightweight, handheld design
  • High-contrast display easily viewed indoors or out
  • > 13 hour Telcordia battery operation
  • Instant On; Ready to test in < 5 seconds
  • Save & upload results in Telcordia .SOR file format 


  • CS260-10: Locate fiber faults in live (in-service) FTTx PON
  • CS260-10: Verify downstream PON power levels at access point or ONT
  • CS260-20: Locate fiber faults in point-to-point metro/access networks
  • Visually locate faults in splice enclosures using integrated VFL
Related Links
 CS260 Quick Reference Guide
 CS260-20 User Guide
 CS260-10 User Guide
 CS260-20 Datasheet
 CS260-10 Datasheet

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