An optical fiber patch cord is a two-fiber cable that uses the same connector type and optical fiber type as the optical fiber cabling that it is connected to. Fiber patch cord must meet the cable transmission performance requirements and physical cable specifications of TIA/EIA-568B.
TIA/EIA-568B sets the performance specifications for optical fiber patch cords recognized in premises cabling standards. Fiber patch cables are used at cross-connects to connect optical fiber links. They are also used as equipment or work area cables to connect telecommunications equipment to horizontal or backbone cabling.
Optical fiber patch cables used for either cross-connection or interconnection to equipment shall be orientated as defined in TIA/EIA-568B. Position A goes to position B on each optical fiber. The connector that plugs into the receiver is position A and the connector that plugs into the transmitter is position B.
The terms “fiber optic patch cord” and “fiber optic jumper” are often interchanged but strictly speaking they are different. A “patch cord” is a two-fiber cable, but the term “patch cord” is often used to describe a single-fiber cable.
The term “fiber jumper” is defined in IEEE 802.3 as an optical jumper cable assembly used for bidirectional transmission and reception of information. A fiber jumper can be a single-fiber cable or a multi-fiber cable.
The jumper cable connected to the light source is called the “transmitter jumper”. The fiber jumper cable connected to the fiber optic power meter is called the “receiver jumper”. But you may also see these test fiber jumpers referred to as a reference jumper. However they are named, fiber jumpers are a critical part of your fiber optic test equipment setup.
Author: Colin Yao
Article Source: EzineArticles.com
Provided by: Mobile device news
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