
A.4 C
cabling
The method by which a group of insulated conductors is mechanically assembled or
twisted together.
cable trough
The trough which is used for cable routing in the cabinet.
captive nut
CAR
CAS
Channel Associated Signaling
CBR
CBS
Committed Burst Size
CCDP
Co-Channel Dual Polarization
CCM
Continuity Check Message
CDR
Clock and Data Recovery
CDVT
Cell Delay Variation Tolerance
Cell Delay Variation
Tolerance
This parameter measures the tolerance level a network interface has to aggressive
sending (back-to-back or very closely spaced cells) by a connected device, and does not
apply to end-systems.
Centralized alarm
system
The system that gathers all the information about alarms into a certain terminal console.
CES
CFM
Connectivity Fault Management
Chain network
One type of network that all network nodes are connected one after one to be in series.
channel
A telecommunication path of a specific capacity and/or at a specific speed between two
or more locations in a network. Channels can be established through wire, radio
(microwave), fiber or a combination of the three. The amount of information transmitted
per second in a channel is the information transmission speed, expressed in bits per
second. For example, b/s, kb/s, Mb/s, Gb/s, and Tb/s.
CIR
Committed Information Rate
Circuit
A combination of two transmission channels permitting transmission in both directions
between two points.
circuit emulation
service
A function with which the E1/T1 data can be transmitted through ATM networks. At the
transmission end, the interface module packs timeslot data into ATM cells. These ATM
cells are sent to the reception end through the ATM network. At the reception end, the
interface module re-assigns the data in these ATM cells to E1/T1 timeslots. The CES
technology guarantees that the data in E1/T1 timeslots can be recovered to the original
sequence at the reception end.
CIST
Common and Internal Spanning Tree
Class of Service
CoS is a rule for queuing. It classifies the packets according to the service type field or
the tag in packets, and specifies different priorities for them. All the nodes in DiffServ
domain forwards the packets according to their priorities.
OptiX OSN 550 Multi-Service CPE Optical Transmission
System
Configuration Guide
A Glossary and Acronyms
Issue 02 (2011-06-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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