What is an OTDR launch cable?

An OTDR launch cable is designed to connect the OTDR and the link-under-test, to measure the insertion loss and reflectance of the near-end connection.

Why do we need OTDR launch cable?

OTDR is a necessary optical fiber testing tool to analyze the properties of optical fibers using light backscattering technology. It can measure fiber insertion loss and locate breakpoints, fusion points, and connectors in fiber networks.  However, OTDR also has dead zone that can affect the accuracy of the test if appropriate measures are not taken. Using OTDR launch cable is a common way to reduce the impact of dead zone.

How is an OTDR launch cable connected?

The technical engineer will use a launch cable on the input and output connectors of the fiber-under-test. This allows the technical engineer to characterize the insertion and return loss of the input and output connectors of a fiber link.

How long is an OTDR launch cable needed？

In order to ensure the accuracy of test results, the length of OTDR test extension cord is very important. It is recommended that the OTDR launch cable be longer than the dead zone. The shorter 150m lengths are ideal for premises fiber network test applications. Ting Esun offers single mode OTDR launch cables 500m,1000m and 2000m for broadband, long-haul fiber network test applications.

Where is the OTDR launch cable used?

OTDR Launch Cable is used to make up the dead zone of OTDR test, minimize measurement uncertainty indoor to outdoor and detect problem in the existing fiber links. It is applicable to optical fiber CATV, optical fiber communication systems, local area network (LAN), optical fiber data transmission, optical fiber sensors etc.

OTDR & OTDR launch cable are necessary optical fiber testing tools. As a leading fiber optic components & solutions provider, Ting Esun offers a variety of connector styles including FC/UPC, SC/UPC, ST/UPC, SC/APC, FC/APC, LC/UPC, LC/APC. Please feel free to contact us for more information.