A.19 - Huawei OptiX OSN 550 Configuration Manual

A Glossary and Acronyms
A.19 S
S1 byte
SAN
SC
SCR
SD
SD
SD
SDH
SDP
SD-SDI
SEC
Section
Self-healing
Serial port extended
ECC
server
Service protection
SES
SETS
settings
SF
A-26
A byte to transmit network synchronization status information. On an SDH network,
each NE traces hop by hop to the same clock reference source through a specific clock
synchronization path, realizing synchronization on the entire network. If a clock
reference source traced by an NE is missing, this NE will trace another clock reference
source of a lower level. To implement protection switching of clocks in the whole
network, the NE must learn about clock quality information of the clock reference source
it traces. Therefore, ITU-T defines S1 byte to transmit network synchronization status
information. It uses the lower four bits of the multiplex section overhead S1 byte to
indicate 16 types of synchronization quality grades. Auto protection switching of clocks
in a synchronous network can be implemented using S1 byte and a proper switching
protocol.
Storage Area Network
Square Connector
Sustainable Cell Rate
See space diversity
See Signal Degrade
See Standard definition
See Synchronous Digital Hierarchy
Serious Disturbance Period
See Standard definition-Serial Digital Interface signal
SDH Equipment Clock
The portion of a SONET transmission facility, including terminating points, between (i)
a terminal network element and a regenerator or (ii) two regenerators. A terminating
point is the point after signal regeneration at which performance monitoring is (or may
be) done.
A function of establishing a replacement connection by network without the network
management connection function. When a connection failure occurs, the replacement
connection is found by the network elements and rerouted depending on network
resources available at that time.
The ECC channel realized by means of serial port.
A network device that provides services to network users by managing shared resources,
often used in the context of a client-server architecture for a LAN.
A measure that ensures that the services can be received at the receive end.
Severely Errored Second
Synchronous Equipment Timing Source
Parameters of a system or operation that can be selected by the user.
See Signal Fail
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Copyright © Huawei Technologies Co., Ltd.
OptiX OSN 550 Multi-Service CPE Optical Transmission
System
Configuration Guide
Issue 02 (2011-06-30)