Overview

The Fast Light UT903 OTDR has been developed to enable the cost effective central office testing of fibre cable systems, both passive optical networks (PONs) and point to point using a single test unit.

The PON OTDR function combines a fast response with excellent signal-to-noise ratio. Trace data is further enhanced using signal processing techniques, enabling the UTEL OTDR to resolve reflections from ONTs on PONs without additional reflectors. The point-to-point OTDR function with its high dynamic range can monitor links up to 160 km, providing an accurate location if a fault is found. Periodic testing allows monitoring for degradation, enabling preventative maintenance.

OTDR

Key Features

  • "Out of band test" wavelength, no interruption to service
  • Ability to apply test tones
  • On Demand / Scheduled testing
  • Remote access and test management
  • Choice of panel connectors
  • Cascade to Fibre level using the UTEL Optical Switches
  • Rack mount options
  • Determined baseline for future reference / changes
  • Part of a full test solution (FastLight)

Technical Specification

  • Wavelength: 1650nm +/- 5nm
  • Measurement range (km): 1 (min) to 500 (max)
  • Pulse width: 3ns (min), 20us (max)
  • Sampling resolution (m): 0.1 (min) to 2 (max)
  • Dynamic range: 43dB (typical)
  • Event dead zone: 0.7m (typical)
  • Attenuation dead zone: 5m (typical)
  • Distance measurement accuracy: +/-(1m + 0.0025% x distance + sampling resolutio)
  • Maximum number of sampling points: 250,000
  • Test Time: Typically 60 Seconds
  • Control Interface: Ethernet 100Mb/sec
  • Control Software: UTEL FastLight or via published APIs
  • Power requirements: -48V DC 24Watts
  • Output Connector: SC/APC
  • Power requirements: -48V DC 24Watts
  • Operating Temperature Range: -5°C to 45°C (standard calibration)
  • MTBF: >20 Years (70,000 hours on fan)
  • Volatile memory: None
  • Height (mm): 44.4
  • Width (mm): 437
  • Depth (mm): 250
  • Weight (kg): 4
  • Tones: 270Hz, 300Hz 1KHz, 2KHz

 

Datasheets

PDF Fast Light Optical Test Access Switch

PDF UTEL OTDR