The condition and characteristics of fiber optic connectors greatly affects the performance of an installed fiber optic link. High connector loss (e.g., insertion loss), low return loss, or high reflectance will impair an application (i.e. 10GBASE-LRM) from running on a network. A high return loss is a good thing and usually results in low insertion loss. Let’s examine the differences between these three terms because they can be confusing.
Fiber to the Desk (FTTD) applications have long been lumped in with other FTTX applications with the “X” signifying a variety of fiber optic access points, including Fiber to the Home (FTTH), Fiber to the Premise (FTTP), Fiber to the Curb (FTTC) and Fiber to the Building (FTTB). But it’s important to remember that FTTD is a premise application while many of the others are considered outside plant.
Regardless of the size and type of the data center, the switching topology and the applications, the underlying cabling infrastructure that creates all the links needed to connect data center equipment follows the same basic design principles established by industry standards. These standards were developed on the basis that regardless of business activity or size, all data centers have similar needs that include providing secure, uninterrupted availability, performance and reliability.