| Specification | Value |
|---|---|
| Platform | T‑BERD / MTS‑4000 two‑slot handheld modular test platform. |
| Module model | E4126MA (4126MA) Metro‑Access OTDR module. |
| Wavelengths | 1310 nm and 1550 nm; versions available with additional in‑service wavelengths (1625/1650 nm). |
| Dynamic range | Typical metro/access range ~37–43 dB depending on configuration and wavelength. |
| Sampling resolution | Down to 4 cm sampling resolution. |
| Number of acquisition points | Up to 128,000 or 256,000 data points (module/firmware dependent). |
| Display range | 0.5 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 measurement | Display resolution 0.001 dB; linearity ±0.03 dB/dB. |
| Optical interfaces | Interchangeable connectors: FC, SC, DIN, LC, ST (PC or APC as applicable). |
| Integrated tools | Optional CW light source and broadband power meter through OTDR port; VFL and connector inspection supported on platform. |
| Laser safety | Class 1. |
| Weight (module) | ~0.35 kg. |
| User interface | Large color touchscreen with multi‑touch; scripting and SmartAccess remote control supported. |
| Attribute | MTS‑4000 + 4126MA | MTS‑2000 + 4126MA |
|---|---|---|
| Platform / Slots | Two‑slot handheld; supports OTDR + second module. | One‑slot handheld; single module at a time. |
| Portability | Larger, heavier; built for multi‑test field workflows. | Smaller, lighter; optimized for single‑tech portability. |
| Expandability | High — add power meter, VFL, OSA, Ethernet modules, etc. | Limited — focused on fiber/OTDR tasks only. |
| User Interface & Connectivity | Full touchscreen, remote control (SmartAccess), StrataSync support. | Touchscreen with similar OTDR UI; fewer simultaneous features. |
| OTDR performance with 4126MA | Same 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 for | Multi‑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.