Elenco Fiber Optics Voice and Data Kit - Manual (Page 16)

-15-
Both ends of the optical cable are terminated in the
same way. Please follow the steps below.
1) Use a razor blade (a very sharp knife will do) to
cut the cable at a right angle to the length of the
cable. Make the cut as close to 90
O as possible.
2) Place the polishing paper on a work bench or
other flat surface, and apply a few drops of water
or oil to it. Hold the cable at a right angle to the
polishing paper and polish the end that was just
cut. The cable should not flex while polishing. To
avoid flexing, clamp the cable between the two
PC boards with only a small length of the cable
extending beyond the edge of the PC board.
3) Repeat steps 1 and 2 for the other end.
4) Mount the two ends of the cable to the two
connectors on the transmitter and receiver PC
board as shown in the figure.
ASSEMBLY INSTRUCTIONS
HOW TO TERMINATE AN OPTICAL FIBER
Answ ers: (1) wide bandwidth, low loss , electromagnetic imm unity (2) ra te (3) attenuation (4) glass , plastic
(5) radiation (6) loss , gain (7) light, light (8) reflect (9) cladding, core (10) reflection
QUIZ 2
1. The three most important features of fiber optics
are _________, _________ and __________.
2. Bandwidth is an indication of the _________ at
which information can be sent.
3. The loss of signal strength is called ________.
4. The two most popular optical fibers are
________ and _________.
5. Unlike copper cables, optical fibers do not
radiate or pick up _________.
6. The Decibel is a unit used to express
_________ or _________ in a system or
component.
7. Refractive index is the ratio of the speed of
_________ in vacuum to the speed of
_________ in any material.
8. If the angle of incidence is greater than the
critical angle, light will completely _______ back.
9. The optical fiber has two concentric layers called
the _________ and __________.
10. The total internal _________ forms the basis of
light propagation through a simple optical fiber.