Cambium Networks PTP 820 Series User Manual page 989

Chapter 22: Synchronization (CLI)
Configuring the Sync Source (CLI)
Frequency signals can be taken by the system from Ethernet and radio interfaces. The reference frequency may
also be conveyed to external equipment through different interfaces.
Frequency is distributed by configuring the following parameters in each node:
•
System Synchronization Sources – These are the interfaces from which the frequency is taken and distributed
to other interfaces. Up to 16 sources can be configured in each node. A revertive timer can be configured. For
each interface, you must configure:
o
Priority (1-16) – No two synchronization sources can have the same priority.
o
Quality – The quality level applied to the selected synchronization source. This enables the system to
select the source with the highest quality as the current synchronization source.
•
Each unit determines the current active clock reference source interface:
o
The interface with the highest available quality is selected.
o
From among interfaces with identical quality, the interface with the highest priority is selected.
When configuring a Sync source, the Sync mode must be set to its default setting of automatic. To display the
current Sync mode, enter the following CLI command in root view:
root> platform sync mode show
If the Sync mode is set to pipe, you must set it to automatic by entering the following CLI command in root view:
root> platform sync mode set automatic
When configuring an Ethernet interface as a Sync source, the Media Type of the interface must be rj45 or sfp, not
auto-type. To view and configure the Media Type of an Ethernet interface, see
Type (CLI).
This section includes:
•
Configuring an Ethernet Interface as a Synchronization Source (CLI)
•
Configuring a Radio Interface as a Synchronization Source (CLI)
•
Clearing All Sync Sources (CLI)
Configuring an Ethernet Interface as a Synchronization Source
(CLI)
You can configure Ethernet interfaces, including Cascading interfaces, to be synchronization sources.
Note
In order to select an Ethernet interface, you must first specify the media type for this interface. See
Configuring Ethernet Services
To configure an Ethernet interface as a synchronization source, enter the following command in root view:
(CLI).
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Configuring the Sync Source (CLI)
Configuring an Interface's Media