Flashcards in Ch. 3 - ITS Cables & Connecting Hardware.csv Deck (33):
Work Area components include:
Work area cable
Work area equipment
BICSI recommends using ________ cable as the minimum performance level for horizontal balanced twisted-pair cabling.
ISO CAT 3/Class C balanced twisted pair cabling has a frequency characterization of:
ISO CAT 5/Class D balanced twisted pair cabling has a frequency characterization of:
TIA CAT5e balanced twisted-pair cabling has a frequency characterization of:
ISO CAT 6/Class E balanced twisted pair cabling has a frequency characterization of:
ISO CAT 6a/Class Ea balanced twisted pair cabling has a frequency characterization of:
TIA CAT6A balanced twisted-pair cabling has a frequency characterization of:
ISO class Ea balanced-twisted pair cabling is the equivalent of TIA Category _______ twisted-pair cabling.
Balanced twisted-pair cable has conductor sizes of:
Pic of screened twisted pair - Figue 3.1
Identify foil shield and drain wire
For balanced twisted-pair cabling, ______ transmission parameters depend on the physical nature of the conductor (materials and wire gauge).
Two common style of screening types
Foil & Braid
For balanced twisted-pair cable, the purpose of a screen is to:
Provide physical protection
Minimize the effect of external EMI on the pairs
Reduce the level of radiated signal from the cable
Balanced twisted pair patch cords have stranded conductors for added flexibility but:
experience 20-50% more attenuation than solid conductors
Single-ended equipment cords typically attach from:
One piece of equipment directly to the back or bottom of connecting hardware.
Double ended patch cords typically attach from:
One piece of connecting hardware directly to another piece of connecting hardware.
MM fiber =
50 or 62.5 um core & 125 um cladding
distances up to 6,560'
supports common wavelengths 850nm & 1300nm
SM fiber =
8-11 um core
distances up to 9,840'
supports common wavelengths 1310nm, 1490nm & 1550nm
Optical fiber attenuation is directly proportional to:
*Optical fiber bandwidth performance-OM4
-3500 MHz @ 850nm OFL (overfilled launch)
-4700 MHz @ 850nm RML (restricted mode launch)
-500 MHz @ 1300nm
A tight-buffered optical fiber cable's typical applications are:
-Short reach, high bit-rate systems for telephony
-Distribution & local networks for voice, data and video
-Premises intra-building and inter-building installations, includes LAN's, SAN's, data centers, PBX's, video and various multiplexing uses.
Singlemode cables =
extended distances, 10 Gigait Ethernet
____ modular connectors are used primarily for telephones and modem line cords.
______ modular connectors are used primarily for data communication line and patch cords.
8P8C (8 position & 8 contact), also referred as RJ-45 connector
Rack mounted hardware is installed in standard _____ or ______ racks or cabinets.
19" or 23"
If the desired end equipment is not equipped with the connector chosen from the cabling system, use ________
hybrid optical fiber patch cord assemblies
_______ in a unit of measure expressed in ohms and represents the total opposition a connector offers to the flow of alternating current.
______ is the decrease in magnitude of the transmission signal's strength in a connector.
Telecom outlet/connector describes:
a connecting device in the work area on which horizontal cable or outlet cable terminates. (not to be confused with telecom outlet box)
_________ modular connectors are used primarily for telephone handset cords.
Optical fiber attenuation is measured in _______, depends on the optical fiber attenuation factor, which is expressed in ________, and is affected by the wavelength of the light comprising the pulse.