Condition: Seller refurbished

Calibrated May 2025, all parameters passed, no adjustments needed.

Included in the sale:

·        Viavi JDSU MTS 2000 mainframe

o   Built-in power meter and visual fault locator

o   Touchscreen

·        Viavi 4146 Single-mode and multi-mode OTDR Module

o   Source: 1310 / 1550 nm : 37 / 35 dB 850 / 1300 nm : 26 / 24 dB 

o   Connector: SC-PC

o   Software Options: Refer to images

·        AC power adapter

·        Protective case and carry case

·        Stylus

JDSU 4146 Quad OTDR Module

The JDSU 4146 Quad OTDR Module from Viavi Solutions is a powerful and versatile optical test tool ideal for fiber installers, contractors, wireless providers, and enterprise network technicians. With both single-mode and multimode capabilities, it’s perfect for use in premises, metro, access, and wireless fronthaul/backhaul environments.

Key Features

• Supports quad wavelengths: 850, 1300, 1310, and 1550 nm

• High dynamic range: up to 37 dB (single-mode), 26 dB (multimode)

• Integrated CW light source and optical power meter

• Rapid acquisition with sharp resolution and 0.8 m event dead zone

• TIA/IEC pass/fail thresholds and propagation delay measurement

• Optimized for 10 Mb to 40 Gb Ethernet testing

• IEC 61280-4-1-compliant (requires external modal controller)

• Certifies Tier 2 premises networks

• Compatible with SLM, FTTA-SLM, and FTTH-SLM software applications

Technical Specifications

• Pulse width range: 3 ns to 20 µs

• RMS dynamic range: 26/24 dB (MM), 37/35 dB (SM)

• Event dead zone: 0.8–0.9 m

• Attenuation dead zone: 4 m

• Up to 128,000 data points

• Sampling resolution: 4 cm

• Measurement accuracy: ±1 m ± sampling resolution ±1×10⁻⁵ × distance

• Attenuation measurement: auto/manual, 2-pt, 5-pt, LSA

• Reflectance accuracy: ±2 dB

• Display and cursor resolution: 0.001 dB

• Reflectance threshold range: −11 to −99 dB

Device Specifications

• Weight: 0.4 kg (0.88 lb)

• Dimensions: 128 × 134 × 40 mm (5 × 5.28 × 1.58 in)

• Interchangeable optical connectors: FC, SC, DIN, LC, ST

• Distance units: kilometers, feet, miles

• Display range: 0.5 m to 260 km

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.