Condition: Used — in excellent condition. This unit was manufactured in 2022 and comprises the MTS 4000 V2 mainframe paired with the Viavi 4138 FMA365 FC-S SM OTDR module (E4138FMA365-APC), also manufactured in 2022. The module operates in METRO-ACCESS/PON MA3 configuration with sources at 1310, 1550, and 1650 nm (live), dynamic range of 43/41/41 dB, and an SC-APC connector. The mainframe features a built-in power meter, visual fault locator (2.5 mm connector), and wireless plus Bluetooth connectivity. Licensed software options include Singlemode OTDR, SMART TEST, Source, and Power Meter.

Included in the sale:
• Viavi JDSU MTS 4000 V2 mainframe (MFD 2022) with built-in power meter, VFL, wireless, and Bluetooth
• Viavi 4138 FMA365 FC-S SM OTDR module (E4138FMA365-APC, MFD 2022)
• AC power adapter
• Carry case
• Stylus

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 MTS 4000 V2 is a compact, field-portable OTDR mainframe designed for fibre optic network installation, commissioning, and maintenance. The modular platform accepts plug-in optical modules and integrates core test tools including a built-in optical power meter and visual fault locator, making it a versatile all-in-one solution for field technicians.

The 4138 FMA365 module (E4138FMA365-APC) extends the platform with a triple-wavelength singlemode OTDR optimised for METRO-ACCESS and PON networks. The inclusion of a 1650 nm live-fibre wavelength enables testing on in-service fibres without disrupting live traffic, which is essential for PON maintenance and troubleshooting.

Key Features:
Modular, upgradeable mainframe platform
Built-in power meter and 2.5 mm visual fault locator
Wireless and Bluetooth connectivity for remote operation and data transfer
SMART TEST automation for rapid pass/fail fibre certification
SC-APC optical interface for low-reflection terminated network testing

Technical Specifications (4138 FMA365 Module):
Wavelengths: 1310 / 1550 / 1650 nm
Fibre Type: Singlemode
Network Configuration: METRO-ACCESS / PON MA3
Dynamic Range: 43 dB (1310 nm) / 41 dB (1550 nm) / 41 dB (1650 nm)
Live Fibre Capability: Yes (1650 nm)
Optical Connector: SC-APC
Licensed Software Options: Singlemode OTDR / SMART TEST / Source / Power Meter
Mainframe Connectivity: Wireless + Bluetooth
VFL Connector: 2.5 mm universal

Viavi MTS 4000 V2 Platform Datasheet (PDF): Download PDF

Viavi FMA365 OTDR Module Datasheet (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, 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.