VIAVI T-BERD/MTS-2000 Handheld Fiber Test Platform

T-BERD/MTS-2000 is a single-slot, battery-powered handheld tester designed for fiber-optic validation and troubleshooting.  

Its rugged enclosure and intuitive touchscreen interface make it ideal for field technicians maneuvering in tight spaces or harsh environments.  

Modular architecture lets you swap OTDR, power meter, and CW source modules on the fly, minimizing downtime and maximizing tool utilization.  

4138 FMP265 OTDR Module Description

The 4138 FMP265 is a compact OTDR module in VIAVI’s 4100 Series optimized for single-mode PON and legacy fiber networks.  

It integrates seamlessly with the T-BERD/MTS-2000 platform, providing a single-port solution for multiple wavelengths and in-service testing.  

Designed for ease of use, it supports automated fault location, bidirectional analysis, and instant detection of live traffic without disconnecting the fiber.  

Key Features

- Dual-wavelength test capability at 1310 nm and 1550 nm  
- In-service filtered wavelength (1625 nm) for live network troubleshooting  
- Up to 43 dB dynamic range for long-haul and high-splitter applications  
- 256,000 acquisition points for high-resolution event detection  
- Integrated launch cable measurement and macro-bend detection  
- Compatible with FiberComplete™ PRO workflow and cloud-based job management  
- Plug-and-play portability across T-BERD/MTS platforms  

Technical Specifications

Parameter                     Specification                           

Wavelengths                  1310 nm, 1550 nm, filtered 1625 nm      
Dynamic Range                Up to 43 dB                             
Acquisition Points            Up to 256,000                           
Pulse Widths                  3 ns to 20 µs                           
Event Dead Zone              < 1 m                                   
Attenuation Dead Zone         < 4 m                                   
Connector Interfaces          FC/PC, SC, DIN, LC, ST (interchangeable) 
CW Source Output             –3.5 dBm                                
Power Meter Range (optional)  0 to –55 dBm                            
Weight                        0.35 kg (0.77 lb)                       
Dimensions (W×H×D)            128 × 134 × 40 mm (5 × 5.3 × 1.6 in)     



Applications

- Fiber-to-the-Home (FTTH) PON validation up to 1×128 splitters  
- Data center interconnect certification and turn-up  
- Metro and long-haul fiber troubleshooting  
- Cable TV (CATV) network testing and maintenance  
- Wireless/5G xHaul fiber link verification  
- Point-to-multipoint passive optical networks (PONs)  
- Automated batch testing with multifiber MPO switch