OEM Specifications

SpecificationValue
PlatformT‑BERD / MTS‑4000 two‑slot handheld modular test platform.
Module modelE4126MA (4126MA) Metro‑Access OTDR module.
Wavelengths1310 nm and 1550 nm; versions available with additional in‑service wavelengths (1625/1650 nm). 
Dynamic rangeTypical metro/access range ~37–43 dB depending on configuration and wavelength. 
Sampling resolutionDown to 4 cm sampling resolution.
Number of acquisition pointsUp to 128,000 or 256,000 data points (module/firmware dependent). 
Display range0.5 km up to 260 km (displayable range). 
Distance accuracy±1 m ± sampling resolution ± (1.10^{-5}) × distance (excluding group index uncertainties). 
Reflectance accuracy±2 dB; ORL threshold configurable from −11 to −99 dB. 
Attenuation measurementDisplay resolution 0.001 dB; linearity ±0.03 dB/dB. 
Optical interfacesInterchangeable connectors: FC, SC, DIN, LC, ST (PC or APC as applicable). 
Integrated toolsOptional CW light source and broadband power meter through OTDR port; VFL and connector inspection supported on platform. 
Laser safetyClass 1. 
Weight (module)~0.35 kg. 
User interfaceLarge color touchscreen with multi‑touch; scripting and SmartAccess remote control supported. 

Capabilities Derived from OEM Documentation


Typical Use Cases


 Comparison

AttributeMTS‑4000 + 4126MAMTS‑2000 + 4126MA
Platform / SlotsTwo‑slot handheld; supports OTDR + second module.One‑slot handheld; single module at a time.
PortabilityLarger, heavier; built for multi‑test field workflows.Smaller, lighter; optimized for single‑tech portability.
ExpandabilityHigh — add power meter, VFL, OSA, Ethernet modules, etc.Limited — focused on fiber/OTDR tasks only.
User Interface & ConnectivityFull touchscreen, remote control (SmartAccess), StrataSync support.Touchscreen with similar OTDR UI; fewer simultaneous features.
OTDR performance with 4126MASame optical performance (wavelengths, dynamic range, sampling resolution) as in MTS‑2000 when same module used.Same optical performance (module‑dependent specs unchanged by host).
Best forMulti‑service techs who need mixed tests without swapping gear.Field techs who need a compact OTDR‑centric tester.

The 4126MA OTDR delivers the same optical specs (1310/1550 nm, high sampling resolution, module dynamic range up to ~40+ dB) regardless of host; platform choice affects expandability, battery/workflow, and convenience.