The Fluke Networks SMC‑9‑SCST is a 160 m single‑mode OTDR launch cable built with 9 µm fiber and SC to ST UPC terminations, supplied as a reference‑grade launch/launch‑cord for OTDR dead‑zone elimination and precise loss and reflectance measurements.
| Attribute | Value |
|---|---|
| Model | SMC‑9‑SCST |
| Fiber type | Single‑mode 9 µm |
| Length | 160 m |
| Connectors | SC (end 1) to ST (end 2), UPC polish |
| Intended use | OTDR launch cord / dead‑zone eliminator |
Purpose and role
The SMC‑9‑SCST is designed specifically as an OTDR launch cord to provide a low‑loss, reference fiber between the OTDR test port and the fiber under test so that near‑end events and connector/splice losses can be resolved and measured accurately. Using a long, low‑loss launch cable eliminates the OTDR dead zone at the instrument port and establishes a stable reference for loss and reflectance measurements.
Optical and connector details
The cable uses single‑mode 9 µm core fiber appropriate for single‑mode OTDR wavelengths and is factory‑terminated with SC and ST connectors finished to UPC specifications. These reference‑grade terminations minimize insertion loss and reflectance introduced by the launch cord itself, improving measurement repeatability.
Length and performance
The standard SMC‑9‑SCST length is 160 meters, a length chosen to ensure the OTDR can fully recover from the instrument’s dead zone and accurately characterize events close to the test port for most single‑mode OTDRs and link types. Actual measurement performance depends on OTDR dead‑zone specs, wavelength, and the device under test.
Mechanical and packaging
Fluke supplies the launch cord in a protective case for field use; connectors are factory‑polished and the assembly is intended to meet the durability and handling expectations of field test kits. The ST connector provides compatibility with legacy ST‑terminated patch panels and test ports while the SC end mates with many OTDR adapters.