VERIFIED CORRECT ANSWERS
There are four classes of administration of Structure cabling system (SCS)
Class 1 single ER equipment room
Class 2 multiple
telecommunication spaces
Class 3 multiple buildings on campus
Class 4 multiple sites
Endothermic
Ability to absorb heat
3 basic types of crosstalk of interest for balaced twisted pair
Near End (NEXT)
Attenuation to crosstalk far end (ACRF)
Alien crosstalk
intumescent
Ability to expand heat
Three transmission methods are
Simplex
Half duplex
Full duplex
Simplex
Transmits signals in one direction
Half Duplex
, Transmits signals in either direction but only One Direction at a time
Direct current (DC)
Refers to a study value that does not change the polarity of the voltage or the direction
of the current
Frequency
1 cycle in 1 s = 1 Hz
Full duplex
Transmit signals in both directions at the same time
Capacitance 1
Properties of conductors that allows storage of electric charges when potential
differences (voltage) exist between the Conductors
Capacitance 2
Causes a voltage difference between two wires when separated by insulation
Capacitance is measured in
Farads
Picofarads is
One trillions of a farad
What are 3 types of Bus Bars
Primary Bus Bar (PBB)
Secondary Bus Bar (SBB)
Rack Bus Bar (RBB)
Electrical power measured in watts has two variations as known as
Apparent or reactive power and true (real) power.
The basic unit of digital information is a
Bit
The POTS signal range is transmitted between __________Hz which is regarded
as the minimum range for human speech to be audible and recognizable.
300 and 3400
Megahertz
_______ - quantifies the bandwidth of a cable system in a frequency range of interest
Megabit