CSIS 160
Josh Ancel
Chapter 10
Terms
- Transmission
the function of a common carrier that allows information to be
passed form CPE to CPE
- Attenuation
The energy of the signal is decreased by the medium as the signal
travels from start to finished.
- dBs
what attenuation is messured in. It is expressed as the relationship
between power input and the power output.
- Gain
when the power out is more then the power in.
- Loss
when the power out is less then the power in
- Hybrid
Term Sets a device used to convert
from a 2-wire to a 4-wire and then back to a 2-wire.
- Singing
when an echo energy leaks back in to the return circuit at the other
end and is amplified.
- Propagation
term that describes an electrical signal moving along a transmission
medium in telecommunications network.
- Echo
suppressors electronic devices to help minimize the effects of
undesired noise.
- Trunk
Circuits all trunk communication paths have an interface between the
switching equipment and transmission facility.
- Line
Conditioning the application of long line adapters or loop extenders
which are used to extend the signal.
- Supervision
one of two signaling types that is used in trunk circuits. It runs
on a SF tone of 2600 Hz when the phone is on-hook (no one is using the
phone) When it is taken off the hook then a signal of No SF tone is sent
setting it to standby.