Installation Manual

Product Glossary glossary-13
OC-12
Optical Carrier level 12. Optical signal designed to receive and transmit
SONET. A pure OC-12 SONET channel carries 622.08 Mbps.
OC-48
Optical Carrier level 48. Optical signal designed to receive and transmit
SONET. A pure OC-48 SONET channel carries 2.4 Gbps.
operating system (OS)
Program that loads when a computer is booted and manages all the other
applications in the computer.
OS
See Operating System (OS).
outdoor repeater site
Location used to extend a consecutive point network.
P
password
A string of characters entered by a user, typically in a Login window, to gain
access to a computer system.
path loss allowance
The net amount of amplification given to the signal in an IFU link, including
margins for adequate received SNR and channel fading. In other words, path
loss allowance is equal to the system gain plus the antenna gains.
payload
User traffic transported over a network
Point Of Presence (POP)
Umbrella name referring to the location of the physical access point where
user traffic is aggregated.
polarization
Directional orientation of a radio wave electric field. Some radio
communication systems can exploit polarization differences to reduce
interference from nearby links.
POP
See Point Of Presence (POP).
power source
A separate unit or part of a circuit that supplies power to the rest of the circuit
or to a system.