When it comes to decide between air blow fiber and conventional cable, engineers prefer conventional fiber as it tends to be more reliable and far less expensive to install. The term “air -blown fiber” is a registered trademark of Sumitomo Electric Lightwave; whereas the phrase “air-blown” is used, specifically in the cost table, it relates to Sumitomo Electric Lightwave’s air-blown fiber products and systems.
Originated in 1982 by British Telecom, Air blow fiber was devised to allow switching between fiber types as they evolved. British Telecom planned to house unanticipated applications by laying cable with extra space for blowing in new types of fiber.
Blown fiber is generally not developed for preconnectorized cabling. Therefore, installers connectorize the fibers on both ends once the fibers are in place. Installers also attach the blown fibers with fanouts to complete the connection, or they join pigtails into place in the blown-fiber breakfront. Over longer sitautions, there are fewer splices for blown cable than there would be for typical cable.
On the other hand, Conventional cable technology has evolved too much to the point at which some cables meet the environmental constraints of external applications as well as the flame- and smoke-redundancy requirements of interior cable. With these riser-rated cables, transition splice or connector points and their associated costs can be evaded.
And in the case of optical fiber, FTTX refers to a generic term for any kind of broadband network architecture based on optical fiber to provide services to all the end nodes.