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A commonly used fiber optic wavelength used in broadband
1310nm
telecommunications with a loss of ~ .33dB/km.
A commonly used fiber optic wavelength used in broadband
1550nm telecommunications with a loss of ~ .25dB/km.
Used for optical links of 120km or greater.
Add Drop Multiplexer
A specific type of multiplexer that allows low speed signals
ADM
to be accessed and removed from the multiplexed high speed
signal without demultiplexing the entire high speed signal.
All Dielectric Self-Supporting
ADSS A fiber cable that supports its own weight without the
need for external support. Contains no conductive metal
elements
American National Standards Institute
An organization that separates LASERs into various classes
ANSI that take into consideration the operating
wavelength, output power level, and whether the laser
operates as a continuous or pulsed light output.
Angle Polish Connector
APC
An 8 to 12 degree angled cut end optical connector.
Avalanche PhotoDiode
APD A semiconductor which converts light to electricity using the
photoelectric effect. The effect is amplified with the use of
the electric field.
Advanced Time Division Multiple Access
Improves on TDMA by introducing Ingress Cancellation
A-TDMA
Filter, Improved Receive Equalization, Improved Burst
Acquisition and Improved Error Correction for
Impulses.
Bit Error Ratio
BER The ratio of errored bits to the total number of bits
transmitted, received, or processed. Often expressed in
scientific notation format.
Community Antenna Television
CATV
Antenna receiver mounted at the highest point near the valley.
, Chromatic Dispersion
CD
occurs in SMF, small differences in velocities of light wavelengths
through the fiber
Code of Federal Regulations
CFR
Cable system rules published by the FCC and federal government.
Central Loose Tube
CLT A fiber cable in which the coated fiber is located inside of an
oversized protective tube which is filled with optical gel.
Central Tube
CT
The principle protective tube located inside of a fiber cable
Course Wavelength Division Multiplexing
A technique in which an increased number of different light signals are
simultaneously transmitted (e.g., typically 8 to 16) increasing
CWDM
data rates on fiber optics. CWDM offers a lower data rate
than DWDM. Ratio of two power levels, P1 and P2,
expressed mathematically as dB =
10log10(P1/P2). Commonly used as an expression of gain or loss.