JDSU OLT-55 Optical Loss Test Set front view, LCD showing Laser Source OFF at 1550nm -3.00dBm

JDSU OLT-55 top panel close-up showing fibre optical ports and laser warning label, screen marks visible

JDSU OLT-55 rear view showing specification label with fibre types, Ge photodiode range 780-1650nm

JDSU OLT-55 angled front-left view on kickstand showing keypad layout and calibration void sticker

JDSU OLT-55 angled right-side view on kickstand showing JDSU branding, OLT-55 label and control buttons

JDSU OLT-55 bottom view with battery compartment open showing USB-B port and power connector, no batteries

JDSU OLT-55 rear label close-up showing serial number BN 2286/01, Class 1 laser, Made in Germany markings

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Viavi JDSU OLT-55 Optical Loss Test Set 1310/1550 nm 2286/01 -70 to +20 dBm

Name: Viavi JDSU OLT-55 Optical Loss Test Set 1310/1550 nm 2286/01 -70 to +20 dBm
Brand: Viavi JDSU
SKU: 7024 7D03 ER88
Price: 165.75 GBP
Availability: InStock

The JDSU OLT-55 is a handheld optical loss test set combining a dual-wavelength 1310/1550 nm laser source and integrated power meter for singlemode fibre certification and loss measurement.
• -70 to +20 dBm measurement range with auto-zeroing for accurate high-loss measurements
• Auto-lambda TWINtest for automatic wavelength detection — measures both wavelengths simultaneously
• Built-in USB interface for remote control and Excel-based report generation

Manufacturer

Viavi JDSU

Model

OLT-55

Condition

Used

In stock

SKU

7024 7D03

£165.75

Fiber Optics
Loss Testers & Fault Locators
Optical Loss Test Sets

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Viavi JDSU OLT-55 Optical Loss Test Set 1310/1550 nm 2286/01 -70 to +20 dBm

£165.75

Condition: Used

These JDSU OLT-55 units are in working condition. The screen has marks as visible in the images. Serial number BN 2286/01 is confirmed on the rear label. No power adapter or batteries are included.

Included in the sale:
• JDSU OLT-55 Optical Loss Test Set (unit only)
• Integrated kickstand/stand

Not included:
• Power adapter
• Batteries
• Carry case
• Fibre connectors or adapters

Please note that we have multiple units in stock, and the images presented are of one of them, therefore the cosmetic condition of the exact item you will receive may slightly differ.

The JDSU (now Viavi Solutions) OLT-55 SmartClass Optical Loss Test Set is a high-performance, easy-to-use instrument combining a two-wavelength laser source with an integrated power meter in a single handheld unit. It is designed as a universal tool for singlemode fibre applications spanning laboratory, manufacturing, installation, maintenance, and troubleshooting environments. The OLT-55 supports broadband, PON, and Gigabit Ethernet network testing.

Key Features:
- Dual-wavelength (1310/1550 nm) integrated laser source and power meter in one unit
- Auto-lambda function with TWINtest for automatic wavelength detection and faster testing
- Loss at up to two wavelengths measured and displayed simultaneously
- Built-in auto-zeroing for accurate high-loss measurements with no manual zeroing required
- Independent quick referencing for all built-in wavelengths while in measurement mode
- Can be operated as a standalone power meter or standalone laser source
- Power meter input reflection trap reduces reflections between adapter and photodiode for increased accuracy
- High output level stability via built-in optical isolators
- Laser source output level adjustable for individual applications
- SMARTStar graphical user interface for fast and intuitive operation
- SMARTEnergy power supply management system
- Built-in USB interface for remote control and Microsoft Excel-based report generation
- Robust, shock-proof, and splash-proof housing for field use
- Quick start operation — no warm-up time required
- Traceable measurements to NIST/PTB international standards
- One-handed field operation
- Class 1 laser product
- Made in Germany

Technical Specifications (2286/01):
Laser Source Wavelengths: 1310 nm / 1550 nm
Laser Source Fibre Type: Singlemode 9/125 µm
Laser Source Output Power Range: -7 to 0 dBm
Laser Source Max Output: 0 dBm at 1310 nm and 1550 nm
Power Meter Wavelength Range: 780 to 1650 nm
Power Meter Measurement Range: -70 to +20 dBm
Power Meter Detector: Germanium (Ge) photodiode
Power Meter Fibre Types: SM 9/125, MM 50/125, 62.5/125, 100/140
Connector (Source): IPC / JAPC (universal adapter)
Connector (Meter): IPC
Interface: USB-B (client)
External Power Supply: SNT-121A
Laser Safety Class: Class 1
Origin: Made in Germany

Product Overview

Condition: Used

These JDSU OLT-55 units are in working condition. The screen has marks as visible in the images. Serial number BN 2286/01 is confirmed on the rear label. No power adapter or batteries are included.

Included in the sale:
• JDSU OLT-55 Optical Loss Test Set (unit only)
• Integrated kickstand/stand

Not included:
• Power adapter
• Batteries
• Carry case
• Fibre connectors or adapters

Please note that we have multiple units in stock, and the images presented are of one of them, therefore the cosmetic condition of the exact item you will receive may slightly differ.

Manufacturer's Description

Resources

JDSU OLT-55 SmartClass Optical Loss Test Set — user manual: Download PDF

JDSU OLP-55 SmartClass Optical Power Meter — specification sheet (companion instrument reference): Download PDF

JDSU OLS-55 SmartClass Optical Laser Source — specification sheet (companion instrument reference): Download PDF

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