The cables are laid using one of two techniques: blowing or pulling. In a blowing installation, the fiber optic cable is inserted into a tube, and compressed air is blown through the length of the duct. Alternatively, your fiber optic installers may mount utility poles for an aerial installation if there is existing infrastructure in the customer's. In our digital age, high-speed internet and reliable communication networks are powered by fiber optic cables, which transmit data as light signals at incredible speeds. The process begins with a site survey to determine optimal cable routes. What are their differences and which one is the best when comes to setting an optical communication cable line? HOC (Hone Optical Communications) has 19+ years experiences on optical communication and. Generally, fiber optic cables are trenched underground, although in some cases they may be laid overhead. Cables are typically laid in conduit to protect them from environmental factors and to facilitate future cable. There are three common laying methods for outdoor optical cables, namely: underground pipeline laying (that is, laying optical cables in underground pipelines), direct underground laying and overhead laying (that is, laying from utility poles to utility poles in the air.