Condition: Used

The Viavi JDSU 4126 MA SM OTDR module is designed for metro access and FTTH fibre qualification, offering dual-wavelength testing at 1310/1550 nm with a 40/38 dB dynamic range. It supports testing up to 1x32 splitter configurations and covers a maximum range of 260 km, making it suitable for short and medium-haul FTTH, access, and metro network applications. The event dead zone is 0.9 m and attenuation dead zone is 4 m. Compatible with Viavi MTS 2/4000 modular platforms.

We have both FC and SC connector variants available — please specify which you require when ordering.

What is included in the sale:
• Viavi JDSU 4126 MA SM OTDR module (FC or SC connector — please specify)

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 Viavi (formerly JDSU) 4126 MA is a metro access singlemode OTDR module designed for use with compatible Viavi MTS 2/4000 modular test platforms. It is optimised for FTTH, access, and metro network qualification, supporting testing through passive optical splitters up to 1x32 and covering short to medium-haul fibre infrastructure.

Key Features:
• Dual wavelength operation at 1310/1550 nm
• 40/38 dB dynamic range for extended reach and high-loss network testing
• 0.9 m event dead zone enabling close-range fault detection
• 4 m attenuation dead zone
• 260 km maximum measurement range
• FTTH test capability up to 1x32 splitter
• Field-replaceable module compatible with MTS 2/4000 platforms
• PC polished connector (FC or SC)

Specifications:
Wavelengths: 1310 / 1550 nm
Dynamic Range: 40 / 38 dB
Event Dead Zone: 0.9 m
Attenuation Dead Zone: 4 m
Maximum Range: 260 km
Network Type: FTTH / Access / Metro
Connector Type: PC (FC or SC)
Platform Compatibility: Viavi MTS 2/4000
Applications: Short/medium-haul FTTH qualification, metro access fibre testing up to 1x32 splitter

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.