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Exfo BRT-320A Optical Return Loss Test Set

Parts Grade / As-Is
Exfo BRT-320A Optical Return Loss Test Set

Exfo BRT-320A Optical Return Loss Test Set

Parts Grade / As-Is
Model#: BRT-320A
Stock #:

Expedite Available
Availability: Contact Us

Item Details & Specifications

The Exfo BRT-320A Optical Return Loss Test Set is out-of-specification, and being sold as-is, without warranty. The AC Adapter is not included.

This unit is out-of-spec and requires calibration and has been priced accordingly. At the time of posting, Exfo charged around $300 for the calibration. Please contact Exfo for current pricing and availability of calibration.

Model: BRT-320A-03BLC-58


• Wavelength: 1550 ±15 nm
• Fiber Type: Singlemode, 9/125 µm
• Optical Interface: FC/APC
• Measurement Range: 0 to -70 dB
60036 BRT-320, BRT320, BRT 320, BRT-320A, BRT320A, BRT 320A, BRT-320-A, BRT320-A, BRT 320-A, BRT-320 A, BRT320 A, BRT 320 A

Product Family Overview

Exfo BRT-320/BRT-320A Optical Return Loss Test Set

  • BRT-320 Measurement Range: -8 to –70 dB
  • BRT-320A Measurement Range: 0 to –70 dB
  • Depending on Model, Stores up to 100 or 300 Readings
  • Quick and Easy to Operate
  • Rugged


EXFO’s BRT-320/BRT-320A is a field-ready return loss test set offered in five configurations: 1310 nm, 1550 nm or 1625 nm; dual-wavelength 1310/1550 nm or 1550/1625 nm. All come equipped with rapidly stabilizing TEC lasers and low-drift photodetectors to ensure constant optical return loss (ORL) measurements year after year.

Use the BRT-320A to read backreflection from 0 dB to -70 dB and easily store up to 300 readings in a non-volatile memory. ORL readings appear directly on the large, backlit LCD. An ORL zero function accounts for incidental backreflections before the point of measurement and complies with Bellcore optical continuous wave reflectometer (OCWR) requirements. In User Calibration mode, you can calibrate the unit to a known reflection. Other features include three-way powering (rechargeable NiCd battery pack, 9 V battery, AC adapter/charger), 0.01 dB resolution, ± 0.1 dB linearity, internal InGaAs detector, low-battery indicator and a protective holster with shoulder strap.

Many digital and analog fiber systems require ORL characterization. ORL along a fiber span is a combination of Rayleigh scattering and Fresnel reflections. Together, these phenomena can reduce fiber system performance and increase bit error rate (BER) by degrading transmitter stability. The BRT-320A measures cumulative link return loss and individual component reflectance to reveal potential ORL problems before they seriously affect your applications.

The BRT-320A is ideal for local and long-distance Telco, CATV, utility, broadband and transmission equipment manufacturing applications. These environments often require complete network ORL characterization and component reflectance verification. The BRT-320A also functions as a stable, continuous-wavelength light source for attenuation measurements. Other applications include fiber component and cable manufacturing.

Product Family: BRT-320A, BRT 320A, BRT320A, BRT-320, BRT 320, BRT320

What is the difference between the BRT-320A and the BRT-320?
• The 320A has five wavelength options: 1310, 1550, 1625, 1310/1550, and 1550/1625 nm
• The 320 has three wavelength options: 1310, 1550 and 1310/1550 nm
• The 320A has a range of 0 to -70 dB
• The 320 has a range of -8 to -70 dB
• The 320A can store 300 readings while the 320 can store 100

Additional Photos

Exfo BRT-320A Optical Return Loss Test Set
Exfo BRT-320A Optical Return Loss Test Set
Exfo BRT-320A Optical Return Loss Test Set
Exfo BRT-320A Optical Return Loss Test Set


  • Important Notice: Please note that any additional items included with this equipment such as accessories, manuals, cables, calibration data, software, etc. are specifically listed in the above Item Details & Specifications section and/or displayed in the photos of the equipment. Please contact one of our Customer Support Specialists if you have any questions about what is included with this equipment or if you require any additional information.