Lucent Technologies LambdaXtreme Alarm Messages And Trouble Clearing Manual page 401

UHC (Ultra High Capacity)
A 40G application for transmission of 64 channels for a capacity of 2.56 Tbps and a reach of up
to 1000 km. Payload (per channel) can be one OC768/STM-256 or four OC192/STM-64 signals.
UID (User Identification)
A CIT user code that comprises one to ten alphanumeric, case-sensitive characters. UID
identifies a user when he/she logs into a system.
ULH (Ultra Long Haul)
A 10 Gbps application for transmission of 128 channels giving a capacity of 1.28 Tbps and a
reach of 2000–4000 km. Payload (per channel) can be one OC192/STM-64 or four
OC48/STM-16 signals.
UNITE (UNIversal high speed TDM Equipment for multi-services)
A 10G/40G platform.
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V VOA (Variable Optical Attenuator)
VOA correct the signal strength differences that occur in the transmission line.
VSR (Very Short Reach)
VSR is a SONET/SDH interface that provides a low-cost solution interconnection of less than
300 meters between routers, switches and DWDM systems.
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W WAN (Wide Area Network)
A network whose elements are separated by long distances.
Waveguide
A material medium that confines and guides a propagating electromagnetic wave.
Waveguide Couplers
A coupler in which light is transferred between planar waveguides.
Waveguide Dispersion
The part of chromatic dispersion arising from the different speeds light travels in the core and
cladding of a single-mode fiber (that is, from the fiber's waveguide structure).
Wavelength
The distance between points of corresponding phase of two consecutive cycles of a wave. The
wavelength, is related to the propagation velocity, and the frequency.
Wavelength Growth
A type of growth in which all eight wavelengths are added to a single line before more lines are
added.
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365-575-783R1.1
Issue 1, June 2002
Lucent Technologies - Proprietary
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