Things to Figure Out to Obtain The Proper Fiber Patch Cords
The fiber patch cords are fiber cable with optic connectors on both ends, they come in a variety of cable and connector types. In order to obtain the proper patch cord you need to determine several characteristics listed below.
1.Cable Type — Single-Mode and Multi-Mode fiber
Single-Mode fiber cable generally has a 9 Micron diameter glass fiber. There are two sub groups (referred to as OS1 and OS2) but most cable is "dual rated" to cover both classifications.
Fiber Type | |
OM1(62.5/125) | Multi-mode |
OM2(50/125) | Multi-mode |
OM3(50/125) *Laser Optimized* | Multi-mode |
OM4(50/125) *Laser Optimized* | Multi-mode |
OS1 | Single mode |
OS2 | Single mode |
Multi-Mode fiber cable can have several different diameters and classifications of fiber strands. The two diameters currently in use are 62.5 Micron and 50 Micron. Within the 50 Micron diameter Multi-Mode cable, there are three different grades (referred to as OM2, OM3, and OM4). The cable types used in the patch cord should match that of the network cabling to which they are attached via the patch panel.
2. Cable Type - Simplex or Duplex
Simplex or Duplex — Unlike copper patch cords which send 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.
3. Cable Length
Overall length of the patch cord may be specified in feet or meters, depending on your preference.
4. Fiber Connector Types
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, which are usually referred to as "Fiber Pigtails" rather than "Patch Cords".
There are SC, ST, FC, LC, MU, MTRJ, E2000,MTP/MPO,... connectors (APC/UPC polish) are all available.
In conclusion, when you buy fiber patch cables you should considering following factors.
Connector Type (each end)
Fiber Type
a. Single-Mode or Multi-Mode
b. Diameter in Microns (e.g. 50 or 62.5)
c. Classification (OM1, OM2, OM3, or OM4)
d. Simplex or Duplex
Jacket(Diameter,Flammability,Color )
Length