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Mini OTDR TB-620

3.2 inch color LCD and built-in VFL, OPM and OLS

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Mini OTDR TB-620

  • Built-in OLS, VFL and OPM;
  • 3.2 inch color LCD;
  • Automatic one-button test;
  • Automatic detection and protection of input light;
  • Humanized OTDR software provides detailed test reports;
  • Handheld design, lightweight and portable


Wavelength                       1310nm/1550nm                     
Dynamic Range 22/20dB
Distance Setting Max. 80km
OTDR Connector FC/UPC or customized
Pulse width 5ns~10us
Measuring time 5~180s
Attenuation Dead Zone 8m
Event Dead Zone 3m
LCD 3.2 inch LCD
OPM function +26~-50dBm, 850/1300/1310/1490/1550/1625nm, 2.5mm UPP
VFL function 1mW
Storage Internal memory or TF card (optional)
Communication interface Micro USB*1
Battery 3.7V, 2400mAh lithium polymer battery
Operating temperature 0~+50℃
Storage temperature -20~+70℃
Relative humidity <90%
Weight 333g
Size 168mm*95mm*38mm


  • Carrying bag
  • Calibration certificate
  • Manual
  • CD
  • AC/DC adapter
  • Packing box
  • TB-620-FCU, OTDR FC/UPC Connector
  • TB-620-SCU, OTDR SC/UPC Connector
  • TB-620-SCA, OTDR SC/APC Connector
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