Related Articles
Macrobend Detection Using an OTDR
On a transmission network, one cause of insertion loss on a fiber link is macro bending. This is commonly caused by tight installation or handling. As Fiber-to-the-Home (FTTH) networks lead to a significant increase of fiber installation in the last mile, the space constraints become increasingly stringent. This is driving the need for distributions hubs […]
Fiber Characterization by Fiber Optic Test Equipment
The following specification is the fiber testers and specification for a cable before delivery. 1. Optical Time-Domain Reflectometer (OTDR) — sends a laser pulse through the fiber and detects the return signal strength as well as the transmitting time. This test shows the overall character of the fiber strand including splice loss, splice numbers, connectors, […]
Differences among Multimode (OM1, OM2, OM3, OM4, OM5) and Single Mode (OS1, OS2) Fiber
What are OM and OS type fiber optic cables? In ANSI/TIA-568.3-D, the TIA adopted the nomenclature for fiber found in the international standard ISO/IEC 11801. The multimode fiber is prefixed with “OM” and the singlemode mode “OS”. The new designation in ANSI/TIA-568.3-D should alleviate some of the confusion associated with application support distance issues. Each […]