PRELIMINARY
Synchronization Functions
5 Synchronization Functions
By default, the packet radio works in Free Running mode. In this mode, the
packet radio is not a part of the synchronization network, and does not maintain
a SEC.
The packet radio can also be configured to work in Network Synchronized mode
where it maintains a SEC and distributes synchronization and synchronization
quality level status according to ITU-T G.8261, G.8262, and G.8264.
5.1
Network Synchronized Mode
Network Synchronized mode makes it possible to build a synchronized network
where all the NEs are synchronized to the same source.
Figure 17
shows an
example of a network where the synchronization information is carried to all the
NEs through an assigned path. In case of link failures, the synchronization can
be reestablished using the unassigned synchronization paths.
Active synchronization path
Inactive synchronization path
9531
NE
NE
NE
NE
NE
NE
Figure 17 Master-Slave Synchronized Network
In this mode, the packet radio uses the Node Clock on all the protocol layers
generated in the node.
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1/22102-HRA 901 17/9 Uen PU1 | 2016-07-04
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