Condition: Seller refurbished

This system comprises a Viavi MTS 2000 V2 mainframe (used condition) paired with a calibrated COSA-4055 CWDM OSA module with calibration valid until 2028. The mainframe includes a built-in optical power meter and visual fault locator (VFL), making it a complete field-ready CWDM test solution.

Included in the sale:
• Viavi MTS 2000 V2 mainframe with built-in power meter and VFL
• Calibrated COSA-4055 OSA module (calibration expiry 2028)
• Stylus
• Carry bag and protective case
• Power adapter

The Viavi T-BERD/MTS-2000 V2 is a handheld modular test set designed for the installation, turn-up, and maintenance of fiber optic networks across Enterprise, Metro, FTTx/Access, and Passive Optical Networks (PONs). Its single-slot modular architecture accepts a wide range of interchangeable test modules, allowing field technicians to scale their investment and adapt to evolving network technologies.

The COSA-4055 is Viavi's compact CWDM Optical Spectrum Analyzer module for the T-BERD/MTS-2000, -4000 V2, -5800, and OneAdvisor-800 platforms. It delivers the functionality and speed of a traditional OSA in a handheld, single-slot form factor at a fraction of the cost. It is designed for service providers installing, maintaining, and upgrading metro/access links and CWDM systems, measuring wavelengths and power levels of CWDM channels and displaying the complete spectrum.

COSA-4055 Specifications:
Wavelength Range: 1260 to 1625 nm
Wavelength Accuracy: ±0.5 nm
Readout Resolution: 0.001 nm
Resolution Bandwidth (FWHM): Typically 4 nm
Minimum Channel Spacing: 8 nm
Scan Speed: Full spectrum trace and results in under 4 seconds
Operating Modes: CWDM, Drift
Display Modes: Graph (trace + overview), CWDM table, graph + table
Measurement Parameters: Channel number, power, wavelength, drift
Grid Standards: ITU-T G.694.2 CWDM wavelength and customised grids
Compliance: ITU-T G.695 and G.694.2
SFP Bay: Integrated slot for up to 2 SFP CWDM transceivers
Form Factor: Single-slot, field-interchangeable module
Compatible Platforms: T-BERD/MTS-2000, -4000 V2, -5800, OneAdvisor-800

T-BERD/MTS-2000 Platform Key Features:
Display: Large 5-inch touchscreen
Connectivity: 1G Ethernet port, three USB ports, Bluetooth, Wi-Fi
Battery: Lithium-polymer (LiPo), up to 8 hours operation
Test Applications: OTDR, automatic IL/ORL, CWDM analyser, selective PON power meter, connector inspection with IEC pass/fail analysis
Built-in Tools: Optical power meter, VFL, optical talk set (optional)
Remote Access: Smart Access Anywhere (SAA) for remote control via PC browser or mobile app
Cloud Management: StrataSync asset and workflow management
Cross-compatibility: T-BERD/MTS-4000 V2 modules

Applications:
Performance verification in metro access networks
Maintenance and troubleshooting of CWDM networks
Upgrade and commissioning of CWDM networks
Spectral and drift testing of CWDM sources
Combined CWDM OSA and OTDR testing

Viavi COSA-4055 CWDM Optical Spectrum Analyzer Module – Official Datasheet (PDF): Download PDF

Viavi T-BERD/MTS-2000 Handheld Modular Test Set – Official Datasheet (PDF): Download PDF

Viavi T-BERD/MTS-2000 V2 – Official User Manual (PDF): Download PDF

Shipping & Returns Policy

Shipping Policy

• Processing Time: Orders are typically processed and dispatched within 1 business day.
• Shipping Methods: We offer Expedited Shipping to all destinations using UPS/DHL/Fedex/Royal Mail and other reputable carriers.
• Shipping Times: Mainland UK: 1-2 Business Days / Mainland Europe and USA: 2-3 Business Days / Rest of the World 5-7 Business Days.
• Shipping Costs: These are calculated at checkout based on the shipping method, destination and package dimensions.
• CUSTOMS AND TAXES: It is YOUR responsibility to liaise with customs in your country and ensure your package is cleared and any taxes are paid.
• Shipping Destinations: We ship worldwide.
• Tracking: Once your order is shipped, we will provide you with a tracking number via email.
• Insurance: All shipments are insured. In case of damage, please contact us via email within 48 hours of receiving the product with photographic evidence, please also ensure a report is logged with the delivery driver.

Returns Policy

• Return Period: In the event of an item being received which is 'not as specified', you can return your purchase within 14 days of delivery.
• Condition of Items: Items must be returned unused and in their original packaging.
• Return Method: All returns must be notified in writing to hello@ttinstruments.com, the email should accompany the order number, date and reason for return and must be within 14 days of delivery.
• Restocking Fees: A restocking fee of up-to 20% is applicable for items returned for any reason other than 'not as specified'.
• Refund Method: Refunds are processed to the original method of payment within 5 business days of receiving the return.
• Exchanges: We do not offer exchanges. It will either be a replacement or a refund.
• Return Shipping Costs: Return shipping costs will be borne by the customer unless the item is 'not as specified', in this case we will arrange for the return by way of a prepaid shipping label.