Launch Cord Kit
When performing device-independent OTDR measurements for checking fibre-optic links, launch cords and/or tail cords are required to bridge the device’s dead zones and to comply with IEC measurement specifications. For most OTDRs a launch cord is the only possibility to include the first connector in the measurement. By connecting a tail cord the connector at the end of the link under test is additionally included. Tester manufacturers recommend different lengths for launch and tail cords in order to avoid ghost reflections.