Optical fiber cables network has altered the transmission system radically, and obviously for the better. At the outset, copper wires were used by the intention of doing electrical wiring of the devices but when optical wires were being introduced the thinking process of the customers changed as they thought that they are much more reliable as they are made of plastic or glass and not of metal unlike copper wires. Also, they have proven to be more buttoned up and even provide faster transmission of signals.
Rules for keeping in mind while installing optical fiber cables-
• Nature of the fiber optic cable
While creating a network of cables, two cables are needed, the sender of the data called to be transmitter and the receiving end known as receiver. One of the most important things to be kept in mind while deciding on the part of their wavelengths, in the case of single strand fiber, is that one should be of 1310/1550 nm wavelength and the second of 1550/1310 nm (where 1550 nm is the rate of transmission and 1310 nm is the rate of receiving). Saving on the cost of 1550nm cable by using a pair of 1310 nm devices can affect the network as this pairing does not work. Although, SSF technology costs more than the single mode technology the situations where SSF technology would prove better must not be compromised because instead of using SSF, adding another single mode cable to use an additional application would only add to the cost.
• Incompatibility of single mode and multimode connections
Multimode fibers are huge in sizes but on a contrary they consume less powerful light source and are cost saving whereas single mode fiber cable is a combination of lasers that are much stronger and expensive too. Also, their core size is narrow, around 9 microns in comparison to 62.5 or 50 microns in multimode Fibre Optic Installation. Therefore, neither a combination of two can be used nor they can be used in place of each other.
• Type of connector to be used
Transmitters and receivers can be connected to the devices by the use of different types of connectors be it Stick and Click, Stick and Twist or Lucent Connectors being square, round and more compact than SC respectively. Lucent Connector being the latest in technology overcomes the loopholes of both SC and ST being less in weight and not too flexible for dislodging. Mostly, LC is found in small form pluggable transceivers.
• Performance suffers due to connectors and splice
Using single mode fibers may reduce signal loss per km than using multimode fibers but number of connectors also play a vital role in determining the level of signal loss. Higher their number is higher the loss in signals. For a single mode fiber, generally the loss is 0.75dB by each connector. A degraded line can be corrected by cutting short the cable length or by lowering the speed of transmission.
• Power budgets by power meter
Difference of the least values of transmit power and receive sensitivity gives us the power budget, where, given the distance, the required light for transmission of signals is power budget. Not only the transmit and receive sensitivity affect the budget but connectors and distance too. Thus, the use of a power meter can help.
Source : articlesbase.com
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