CANOGA PERKINS 2262 T1/E1 Fiber Optic Modem - Manual (Page 24)

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Canoga Perkins 2262 T1/E1 Fiber Optic Modem
6. 2262 Glossary
BNC Bayonet Connector
CAD/CAM Computer-Aided Design/Computer-Aided
Manufacturing
Collimation The process by which a divergent or conver-
gent beam of radiation is converted into a beam
with the minimum divergence possible for that
system (ideally, a parallel bundle of rays).
CSU Channel Service Unit
dB Decibel. A standard unit used to express gain
or loss of optical power.
E1 Transmission at 2.048Mbps.
FC Fiber Optic Connector (developed by NTT)
LED Light Emitting Diode. A semiconductor
device which emits incoherent light formed at
the -N junction, either from the junction stripe
edge or its surface.
Multimode Fiber An optical fiber with a core diameter of 25 to
200 microns. The core is much larger than
single mode fiber and allows several beams of
light to be passed through it.
nm nanometer (10 -9 meters)
PBX Private Branch Exchange