CH SCR
Chees Head Screw
Channel
A sub-unit of transmission capacity within a defined higher level of transmission capacity.
CI-CTL
Customer Interface of the Controller
Circuit
A set of transmission channels through one or more network elements that provides transmission
of signals between two points, to support a single communications path.
CIT or
LambdaUnite
™
CIT (Craft Interface Terminal)
The user interface terminal used by craft personnel to communicate with a network element.
CP
Circuit Pack
CTL
System Controller
CTS
Customer Technical Support within Lucent Technologies
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D
D-SUB
D-Subminiature
dB
Decibels
DC
Direct Current
DCC (Data Communications Channel)
The embedded overhead communications channel in the synchronous line, used for end-to-end
communications and maintenance. The DCC carries alarm, control, and status information
between network elements in a synchronous network.
DCM (Dispersion Compensation Module)
A device used to compensate the dispersion, the pulse spreading properties of an optical fiber.
DCMs are necessary for very-long-haul applications and high bit rates.
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G L O S S A R Y
G L - 2
Lucent Technologies
365-374-074
Issue a, April 2002