(ITU-TSS).
CD-ROM
Compact Disk, Read-Only Memory
Channel
A logical signal within a port. For example, for an OC-3 port, there are three STS-1 channels.
See Port.
Channel State
The channel state is also referred to as the primary state of an STS-n or VT1.5 tributary. The
values may be AUTO, NMON, or IS. The primary state parameter affects alarm reporting and
performance monitoring.
Channel State Provisioning
A feature that allows a user to suppress reporting of alarms and events during provisioning by
supporting multiple states (automatic, in-service and not monitored) for VT1.5 and STS-1
channels. See Port State Provisioning.
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
Craft Interface Terminal
CLEI
Common Language Equipment Identifier
Client Signal Fail (CSF)
When a defect is detected in the incoming client signal, the Generic Framing Procedure uses the
Client Management Frame to report Client Signal Fail to the far-end customer equipment.
CO
Central Office
Coding Violation (CV)
A performance monitoring parameter indicating that bipolar violations of the signal have
occurred.
Collocated
System elements that are located in the same location.
CPE
Customer Premises Equipment
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365-372-333 R2.1
Issue 4, June 2005
Lucent Technologies
G L O S S A R Y
G L - 5
