Viavi JDSU FFL-050 Visual Fault Locator pen-style handheld unit with 2.5 mm fibre interface

Viavi FFL-050 VFL 650 nm red laser fault locator side view showing connector port

Viavi JDSU FFL-050 Visual Fault Locator label and model detail close-up

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Viavi JDSU FFL-050 Visual Fault Locator VFL 2.5 mm Interface 650 nm

Name: Viavi JDSU FFL-050 Visual Fault Locator VFL 2.5 mm Interface 650 nm
Brand: Viavi JDSU
SKU: 5411 6A03 ER25
Price: 34.0 GBP
Availability: OutOfStock

The Viavi JDSU FFL-050 is a handheld Visual Fault Locator designed for fibre optic cable testing and fault identification using a 650 nm visible red laser.

• 650 nm visible red laser quickly identifies breaks, bends, and faults in optical fibre
• 2.5 mm universal interface compatible with SC, FC, and ST connectors
• Compact, pen-style form factor ideal for field technicians

Manufacturer

Viavi JDSU

Model

FFL-050

Condition

Used

In stock

SKU

5411 6A03

£34.00

Fiber Optics
Loss Testers & Fault Locators
Power Meters

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Condition: Used

The Viavi JDSU FFL-050 is a portable Visual Fault Locator (VFL) operating at 650 nm, featuring a 2.5 mm interface for use with SC, FC, and ST fibre connectors. In working condition. 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.

Product Overview

Condition: Used

Manufacturer's Description

The Viavi (formerly JDSU) FFL-050 is a compact, pen-style Visual Fault Locator (VFL) designed for field technicians working with fibre optic networks. It emits a visible 650 nm red laser through the fibre under test, allowing users to quickly locate breaks, tight bends, faulty connectors, and splices by visually tracing the light path.

The FFL-050 features a 2.5 mm universal interface, making it compatible with SC, FC, and ST connector types via standard adaptors. Its rugged, pocket-sized design makes it well suited for both installation and maintenance applications in telecommunications, data centres, and LAN/WAN environments.

Key Specifications:
Wavelength: 650 nm
Connector Interface: 2.5 mm universal (SC, FC, ST compatible)
Output Power: Approx. -3 dBm
Operating Modes: CW (continuous wave) and 1 Hz / 2 Hz pulse modes
Fibre Compatibility: Singlemode and multimode
Power Source: AAA batteries
Form Factor: Pen-style, handheld

Please refer to the Viavi Solutions website for full and current specifications.

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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.

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Yes, we accept offers on most of our products. You can send us an offer by contacting us.

Are there any defects with the items you sell?

The equipment we sell will normally be used and so it is essential you carefully read the description and review the images, if there are any cosmetic defects or otherwise we will Cleary state this within the description and display it in the images.

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Yes, we ship all over the world. Shipping costs will apply, and will be added at checkout. Most orders are delivered within one week.

How long will it take to get my orders?

UK: 1-2 working days
Mainland Europe, US & Canada : 2-3 working days
Rest of the world: 5 working days

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Please refer to our detailed shipping policy.

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Orders may be subject to import taxes/duties. You'll need to check local authorities for accurate information on this.

What is your return policy on used equipment?

Most of our products are eligible for a 14 day return period from delivery date. (if the product is not as described).

Please refer to our detailed shipping and returns policy.

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