Condition: Used

The Viavi JDSU MTS 4000 is a modular, field-portable OTDR mainframe paired here with the JDSU 4126 MA3 single-mode OTDR module. This combination provides dual-wavelength testing at 1310 nm and 1550 nm with an impressive dynamic range of 43 dB and 41 dB respectively, a measurement range of up to 260 km, and an exceptionally short event dead zone of 0.7 m. The attenuation dead zone is 3 m, making it well suited for dense network testing. The module is fitted with an APC connector and supports FTTH, access, metro, and long-haul network types.

Included in the sale:
• MTS 4000 Mainframe
• JDSU 4126 MA3 SM OTDR Module
- Source: 1310/1550 nm
- Dynamic Range: 43/41 dB
- Connector: APC
- Event Dead Zone: 0.7 m
- Attenuation Dead Zone: 3 m
- Range: 260 km
- Network Type: FTTH / access / metro / long-haul

The images provided are of the actual item you will receive. Please review them carefully for the cosmetic condition and what is included in the sale.

The Viavi (formerly JDSU) MTS 4000 is a compact, rugged, and modular field mainframe designed for optical fibre network testing. Its modular architecture allows technicians to equip the platform with a variety of plug-in test modules to meet the demands of different network types and testing scenarios. The MTS 4000 is widely deployed for FTTH roll-out, access network commissioning, and long-haul maintenance testing.

The 4126 MA3 is a high-performance single-mode OTDR module for the MTS 4000, delivering dual-wavelength operation at 1310 nm and 1550 nm. With a dynamic range of 43/41 dB and a maximum test range of 260 km, it is suitable for the most demanding long-haul and metro fibre characterisation tasks. The ultra-short event dead zone of 0.7 m and attenuation dead zone of 3 m enable reliable detection and measurement of closely spaced events, connectors, and splices — particularly valuable in FTTH and high-density access networks.

Key Specifications (4126 MA3 Module):
Wavelengths: 1310 nm / 1550 nm
Dynamic Range: 43 dB (1310 nm) / 41 dB (1550 nm)
Event Dead Zone: 0.7 m
Attenuation Dead Zone: 3 m
Maximum Range: 260 km
Connector Type: APC
Network Types: FTTH, access, metro, long-haul
Platform: MTS 4000 Mainframe

The MTS 4000 platform is known for its intuitive user interface, long battery life, and robust construction, making it a trusted tool for field engineers working in demanding environments.

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, and the email should include the order number, date and reason for return 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 which case we will arrange a prepaid return label.