User Guide for FibeAir® IP-20 All-Outdoor Products, CeraOS 10.5
Page 670 of 825
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20.2
Changing the ETSI/ANSI Mode (CLI)
By default, IP-20 units are set to ETSI mode. No mode change is necessary to
configure an MRMC script, even if an FCC (ANSI) script is used. However, to
configure a sync source on which the sync source Quality parameter must be set
according to ANSI specifications. You must change the ETSI/ANSI mode to ANSI
before configuring the sync source.
To change the ETSI/ANSI mode, enter the following command in root view:
root> platform management set interfaces-standard <ansi|etsi>
The following command changes the ETSI/ANSI mode from the default value of
ETSI to ANSI mode:
root> platform management set interfaces-standard ansi
To display the current ETSI/ANSI mode, enter the following command in root
view:
root> platform management show interfaces-standard
Changing the ETSI/ANSI mode does
not
require unit reset.
20.3
Configuring the Sync Source (CLI)
Note
:
To configure a sync source on which the sync source Quality
parameter must be set according to ANSI specifications. You must
change the ETSI/ANSI mode to ANSI before configuring the sync
source. See
Changing the ETSI/ANSI Mode (CLI)
The 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:
◦
Priority (1-16)
–
No two synchronization sources can have the same
priority.
◦
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:
◦
The interface with the highest available quality is selected.
◦
From among interfaces with identical quality, the interface with the
highest priority is selected.
When configuring the 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