Generally, the indoor optical cables we see usually include the following types: vertical increase optical cables, single-core, dual-core interconnected indoor optical cables, optical cables for inflatable environments, and rodent-proof optical cables. So, what are the classifications of indoor. This article provides a comprehensive breakdown of indoor optical cable types, technical specifications, and real-world application scenarios to help you make professional selections quickly. This article is originally written and published by ZORA – a leading fiber optic cable manufacturer with. Recommendation ITU-T L. In order for an optical fibre to perform appropriately, characteristics that a cable should have been described. Selecting the right indoor optical fiber cable depends on factors like transmission distance, space constraints, and building codes.