I get a lot of queries when it is about the subject
of Network & Datacom, but one topic I think people can gain from is
how to confirm the dissimilarity amid one fiber optic patch cord
and another. Fiber optic patch cords avail in a range of cable &
connector types. To get the appropriate patch cord you’ve to determine
many attributes:
Type of cable: Fiber optic cable avail in 2 general varieties, single-mode & multi-mode fiber.
•
Single mode fiber cable usually features 3 Micron diameter glass fiber.
There’re 2 sub groups but majority cable is “dual rated” to cover both
categories.
• Multi mode fiber cable can have many diverse diameters & classifications of fiber shape.
The
2 diameters presently in use are 62.5 Micron & 50 Micron. Within
the 50 Micron length Multi-Mode cable, there’re 3 diverse grades. The
type of cable employed in the patch cord must match that of the network
cabling to which they’re connected through the patch panel.
The
fiber cable may be accessible in diverse “jacket diameters. Thinner
diameters could be favorable in dense installation inside a solitary
rack since they consume less space & are more adaptable.
Cables
that route from rack to rack maybe more apposite if they’ve thicker
jacket that upshot in bigger diameters therefore making them stiffer.
Flammability
of the jacket material could become an issue if the area they are in
has special requirements for flame spread or products of combustion in
case of a fire. In these cases, patch cords may have to be classified as
"Plenum Rated" (OFNP) rather than "Riser Rated" (OFNR).
Simplex or Duplex
— Not like copper patch cords which broadcast information in both
directions (having multiple pairs of conductors with which to do so),
most fiber patch cord cables have a single strand of fiber allowing for
signal flow in one direction only.
Connecting
equipment so that it can send and receive information requires two
strands of fiber (one to transmit and one to receive information). This
can be accommodated by using two "Simplex" (single strand of fiber)
cables for each equipment interconnection or a "Duplex" cable, with
conductors and/or connectors bonded together in pairs.
Length — Overall length of the patch cord may be specified in feet or meters, depending on your preference.
Connector
Type — See the connector type descriptions below. Some patch cords may
have different connector types on each end to accommodate
interconnection of devices with dissimilar connectors. In some cases,
there may be a connector on only one end, and bare or unterminated fiber
on the other. These are usually referred to as "Pigtails" rather than
"Patch Cords".
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