Station communication link, fiber optic - Arc protection - Merging unit - Transformer protection - 2 winding - Product Guide - RET615 Transformer Protection and Control - Relion 615 series - 5.0 FP1 IEC - IEC - 24.05.2023

RET615 Product Guide
Table 1. Station communication link, fiber optic
Connector Fiber type1 Wave length Typical max. length2 Permitted path attenuation3
LC MM 62.5/125 or 50/125 μm glass fiber core 1300 nm 2 km <8 dB
ST MM 62.5/125 or 50/125 μm glass fiber core 820...900 nm 1 km <11 dB
1 (MM) multi-mode fiber, (SM) single-mode fiber
2 Maximum length depends on the cable attenuation and quality, the amount of splices and connectors in the path.
3 Maximum allowed attenuation caused by connectors and cable together