Fiber Testing and Maintenance
1. What topology do most FTTx networks use, re- Point to multipoint (P2MP)
quiring greater fiber color code management
in documentation?
2. Improper use of nylon tie Microbends
wraps can cause what
problem?
3. What are the potential sources of problems in Tree growth, physical damage, pole
aerial installations? attachment problems, and improper
sag and loading considerations
4. During the installation of fiber-optic cable, what Moisture travels into the cable
does damage to the cable jacket cause?
5. A fiber-optic network maintenance plan should Compiling the physical documenta-
be developed with which of the following in tion must become the responsibility
mind? of an identifiable position or organi-
zation
6. What is the best way to prevent problems in The outer jacket and the internal ca-
outside fiber-optic splice enclosures? ble structures must be secured in-
dividually to protect the closure and
splice trays from the effects of ex-
pansion and contraction
7. What documentation changes should occur as Documentation must be updated to
changes are introduced to a fiber-optic net- reflect the new configuration and
work? performance data
8. In locating a fault in the link, the transmitter to Patch panel
the ___ should be tested
, Fiber Testing and Maintenance
9. What should be reviewed and updated immedi- Maintenance posture
ately following each maintenance cycle?
10. During periodic check and resupply, what Check the calibration dates and per-
should be done with the optical power meters? form calibrations as needed
11. What type of interface is common on new-gen- USB
eration optical power meters?
12. Optical power meters used for testing FTTx 1490, 1550, and 1577 nm
installations operating downstream from the
headend should be calibrated for which wave-
lengths?
13. Besides a stabilized light source, and enhanced An optical return loss (ORL) meter
optical power meter, and an optical talk set,
what else do optical loss test sets include in
their combined features?
14. What do most optical power meters require in Annual calibration that is traceable
order to verify accuracy of the transmit and to the National Institute of Standards
receive power measurements? Technology (NIST)
15. What must be done first when measuring The light source and optical power
end-to-end attenuation using the optical power meter must be referenced together
meter? before taking measurements
16. What do most models of laser light sources use Controls for turning the light source
as operational status indicators? on and off, selecting the laser wave-
length for testing, and selecting the
modulation signals; display indica-
tors for the selected wavelength,
1. What topology do most FTTx networks use, re- Point to multipoint (P2MP)
quiring greater fiber color code management
in documentation?
2. Improper use of nylon tie Microbends
wraps can cause what
problem?
3. What are the potential sources of problems in Tree growth, physical damage, pole
aerial installations? attachment problems, and improper
sag and loading considerations
4. During the installation of fiber-optic cable, what Moisture travels into the cable
does damage to the cable jacket cause?
5. A fiber-optic network maintenance plan should Compiling the physical documenta-
be developed with which of the following in tion must become the responsibility
mind? of an identifiable position or organi-
zation
6. What is the best way to prevent problems in The outer jacket and the internal ca-
outside fiber-optic splice enclosures? ble structures must be secured in-
dividually to protect the closure and
splice trays from the effects of ex-
pansion and contraction
7. What documentation changes should occur as Documentation must be updated to
changes are introduced to a fiber-optic net- reflect the new configuration and
work? performance data
8. In locating a fault in the link, the transmitter to Patch panel
the ___ should be tested
, Fiber Testing and Maintenance
9. What should be reviewed and updated immedi- Maintenance posture
ately following each maintenance cycle?
10. During periodic check and resupply, what Check the calibration dates and per-
should be done with the optical power meters? form calibrations as needed
11. What type of interface is common on new-gen- USB
eration optical power meters?
12. Optical power meters used for testing FTTx 1490, 1550, and 1577 nm
installations operating downstream from the
headend should be calibrated for which wave-
lengths?
13. Besides a stabilized light source, and enhanced An optical return loss (ORL) meter
optical power meter, and an optical talk set,
what else do optical loss test sets include in
their combined features?
14. What do most optical power meters require in Annual calibration that is traceable
order to verify accuracy of the transmit and to the National Institute of Standards
receive power measurements? Technology (NIST)
15. What must be done first when measuring The light source and optical power
end-to-end attenuation using the optical power meter must be referenced together
meter? before taking measurements
16. What do most models of laser light sources use Controls for turning the light source
as operational status indicators? on and off, selecting the laser wave-
length for testing, and selecting the
modulation signals; display indica-
tors for the selected wavelength,
