BICSI TECHNICIAN Exam Study Guide
Questions and Answers Latest Version Top
Rated
Three basic locations for storing materials
Work site, Company - controlled location, and Distributor
Materials should be refused when...
Materials delivered to a work site are visibly damaged upon arrival
Upon receiving optical fiber cables you should...
Check the cable even no damage is visible, using an optical fiber
flashlight, optical loss test set
Persons responsible for ordering the materials should...
Place the order as soon as possible after the project plan is
accepted and submittals are approved
T5 Drawing
Schedules (cabling and equipment spreadsheets) for cutovers
T4 Drawing
Typical detail drawings: faceplate labeling, firestopping,
disability/accessibility guidelines and, safety
T3 Drawing
Communication equipment rooms: plan views; tech and
architectural; electrical, mechanical, and plumbing; racks and
walls; and elevations.
T2 Drawing
Serving zones: telecommunications outlet/connector locations
and cable IDs.
T1 Drawing
Layout of complete building per floor: serving zone boundaries,
backbone distributing systems, and horizontal pathways.
T0 Drawing
Campus or site plans: exterior pathways and interbuilding
systems.
Concentricity
Relationship of core and cladding that make up the optical fiber
,Micro bends
Microsopic deviations along the fiber axis and not visible to the
installer
Macro bends
Bends in the installed fiber cable that are visible to the installer
Losses because of scattering are caused by such factrors
as..
- Dopants and impurities in the glass material
- Core size variations
- Variations in the interface between the core and cladding
- macrobends, microbends
Modal dispersion
Results from the different optical path lengths in a multimode fiber
Dispersion
The widening or spreading out of the modes in a light pulse as it
progresses along the optical fiber.
Ribbon Optical Fiber Cable
Optical fiber cable that can be used indoors and outdoors,
consists of up to 24 strands bundled together in a single line of
color - coded ribbon. (Can be quickly spliced, uses array
connectors (MPO) )
Loose tube optical fiber
Optical fiber primarily used outdoors, often has a diameter of 200
or 250um
The most common tight-buffer diameter is...
900um
Breakout
Subunits individually jacketed strands under a single overall
jacket
distribution
Multiple 900um tight-buffered strands under a single jacket
OS2
OSP, typically loose tube construction. Used for distances up to
9842ft. (Supports wavelengths of 1310nm, 1383nm, 1550nm)
OS1
,Legacy indoor, indoor - outdoor, and OSP fiber, not
recommended for new installations. (Supports wavelengths of
1310nm and 1550nm)
OM2
Is not recommended for new installations (multimode).
OM1
Is no longer recognized for new construction and should only be
used when expanding on existting system composed of OM1
fiber. (Distance limitation of 6562ft)(Supports wavelenghths of
850nm and 1300nm)
OM4
Has the highest multimode bandwith
Multimode Optical Fiber Cable
The most common for backbone and horizontal runs within
buildings and campus environments. (50um core and 125 um
cladding diameter.)
Mode Conditioning Patch Cords
An easy and reliable means of connecting multimode optical fiber
cabling with IEEE 802.3, 1000BASE-LX transmission equipment.
(Only recommended on OM1 and OM2 fiber channels.)
Singlemode optical fibers typically have a core size of...
9um
The standard diameter size of the cladding of industry optical
fiber is...
125um
Trench/Moat
The third layer of glass that surrounds the core in both bend
insensitive singlemode fiber and bend insensitive multimode fiber
to reflect lost light back into the core.
Optical fiber cabling is required at a footage of...
328ft(100m)
For RF applications such as connections between WAP and
antennas the coaxial cable typically used are...
RG-58 and RG-316
Series 59
, Used for video, CATV, and security cameras, has a solid center
conductor and is typically terminated with BNC or F connector.
(higher losses limit it to short distances)
Series 11
Used in video backbone, has a solid or stranded center conductor
and uses F or N connectors. (preferred choice for longer runs)
The predominant coaxial cables are...(3)
series-6, series-11, series-59
Series x cables
Coaxial cables used in broadband applications
Coaxial cables used for RF signal transmission (eg., DAS)
continue to use...
RG Designations
Coaxial cable
Delay Skew
The difference in the propagation delay between the slowest and
fastest pairs within the same cable sheath. (expressed in
nanseconds and is lenghth dependent)
The maximum allowable propagation delay for all catgories
of cabling is measured at... (same as delay skew)
10mhz
Propagation Delay
The time interval required for a signal to be transmitted from one
end of a circuit to the other. (expressed in nanoseconds and is
length dependent.)
Alien Crosstalk (AXT)
The unwanted signal coupling from a disturbing pair of a 4-pair
cable channel, permanent link, or component to a disturbed pair
of another 4-pair channel, permanent link, or component.
Insertion loss
Subtracted from the far-end crosstalk measurement
Attenuation-to-Crosstalk Ratio, Far End (ACRF)
Is the measure of the unwanted signal transfer that is assessed
by applying a signal on one pair at the near and measuring the
Questions and Answers Latest Version Top
Rated
Three basic locations for storing materials
Work site, Company - controlled location, and Distributor
Materials should be refused when...
Materials delivered to a work site are visibly damaged upon arrival
Upon receiving optical fiber cables you should...
Check the cable even no damage is visible, using an optical fiber
flashlight, optical loss test set
Persons responsible for ordering the materials should...
Place the order as soon as possible after the project plan is
accepted and submittals are approved
T5 Drawing
Schedules (cabling and equipment spreadsheets) for cutovers
T4 Drawing
Typical detail drawings: faceplate labeling, firestopping,
disability/accessibility guidelines and, safety
T3 Drawing
Communication equipment rooms: plan views; tech and
architectural; electrical, mechanical, and plumbing; racks and
walls; and elevations.
T2 Drawing
Serving zones: telecommunications outlet/connector locations
and cable IDs.
T1 Drawing
Layout of complete building per floor: serving zone boundaries,
backbone distributing systems, and horizontal pathways.
T0 Drawing
Campus or site plans: exterior pathways and interbuilding
systems.
Concentricity
Relationship of core and cladding that make up the optical fiber
,Micro bends
Microsopic deviations along the fiber axis and not visible to the
installer
Macro bends
Bends in the installed fiber cable that are visible to the installer
Losses because of scattering are caused by such factrors
as..
- Dopants and impurities in the glass material
- Core size variations
- Variations in the interface between the core and cladding
- macrobends, microbends
Modal dispersion
Results from the different optical path lengths in a multimode fiber
Dispersion
The widening or spreading out of the modes in a light pulse as it
progresses along the optical fiber.
Ribbon Optical Fiber Cable
Optical fiber cable that can be used indoors and outdoors,
consists of up to 24 strands bundled together in a single line of
color - coded ribbon. (Can be quickly spliced, uses array
connectors (MPO) )
Loose tube optical fiber
Optical fiber primarily used outdoors, often has a diameter of 200
or 250um
The most common tight-buffer diameter is...
900um
Breakout
Subunits individually jacketed strands under a single overall
jacket
distribution
Multiple 900um tight-buffered strands under a single jacket
OS2
OSP, typically loose tube construction. Used for distances up to
9842ft. (Supports wavelengths of 1310nm, 1383nm, 1550nm)
OS1
,Legacy indoor, indoor - outdoor, and OSP fiber, not
recommended for new installations. (Supports wavelengths of
1310nm and 1550nm)
OM2
Is not recommended for new installations (multimode).
OM1
Is no longer recognized for new construction and should only be
used when expanding on existting system composed of OM1
fiber. (Distance limitation of 6562ft)(Supports wavelenghths of
850nm and 1300nm)
OM4
Has the highest multimode bandwith
Multimode Optical Fiber Cable
The most common for backbone and horizontal runs within
buildings and campus environments. (50um core and 125 um
cladding diameter.)
Mode Conditioning Patch Cords
An easy and reliable means of connecting multimode optical fiber
cabling with IEEE 802.3, 1000BASE-LX transmission equipment.
(Only recommended on OM1 and OM2 fiber channels.)
Singlemode optical fibers typically have a core size of...
9um
The standard diameter size of the cladding of industry optical
fiber is...
125um
Trench/Moat
The third layer of glass that surrounds the core in both bend
insensitive singlemode fiber and bend insensitive multimode fiber
to reflect lost light back into the core.
Optical fiber cabling is required at a footage of...
328ft(100m)
For RF applications such as connections between WAP and
antennas the coaxial cable typically used are...
RG-58 and RG-316
Series 59
, Used for video, CATV, and security cameras, has a solid center
conductor and is typically terminated with BNC or F connector.
(higher losses limit it to short distances)
Series 11
Used in video backbone, has a solid or stranded center conductor
and uses F or N connectors. (preferred choice for longer runs)
The predominant coaxial cables are...(3)
series-6, series-11, series-59
Series x cables
Coaxial cables used in broadband applications
Coaxial cables used for RF signal transmission (eg., DAS)
continue to use...
RG Designations
Coaxial cable
Delay Skew
The difference in the propagation delay between the slowest and
fastest pairs within the same cable sheath. (expressed in
nanseconds and is lenghth dependent)
The maximum allowable propagation delay for all catgories
of cabling is measured at... (same as delay skew)
10mhz
Propagation Delay
The time interval required for a signal to be transmitted from one
end of a circuit to the other. (expressed in nanoseconds and is
length dependent.)
Alien Crosstalk (AXT)
The unwanted signal coupling from a disturbing pair of a 4-pair
cable channel, permanent link, or component to a disturbed pair
of another 4-pair channel, permanent link, or component.
Insertion loss
Subtracted from the far-end crosstalk measurement
Attenuation-to-Crosstalk Ratio, Far End (ACRF)
Is the measure of the unwanted signal transfer that is assessed
by applying a signal on one pair at the near and measuring the
