Televes OLT 769401, User Manual

Page: 75 / 482

EN
75
Figure 5-28: Synchronism Configuration Window- Synchronism Sources table
The following parameters can be configured in the source of synchronism table.
Parameter Description
Sources Lists all possible for synchronization
Active Allows a given synchronization source to be enabled or disabled.
Interface
This column allows selection of an n Ethernet interface, within a certain module, which can be used as a
possible synchronization source. In the case of the junctions, it is possible to configure if this operates at
2MHz or 2Mbits
Priority
Allows setting the source priority. The lower the priority value, the greater the preference of this source
over the others. Note that, for sources having equal priority, the concept of reversibility has no meaning.
QL-SSM
Quality Level; The user can select the intended SSM value for the source. This value overrides the value
received by the equipment. When the SSM value is overridden, the following precautions should be taken:
In case of interface LOS, this source is not used. If the received value is DNU, the equipment will continue
to use this synchronization source.
Sa bit [Tx]
Allows setting the value of the transmission Sa bit in the case of 2Mbps (only for the synchronization
junctions);
Sa bit [Rx] Allows setting the value of the reception Sa bit in the case of 2Mbps (only for the synchronization junctions)
Hold-Off time (ms)
The Hold-Off time ensures that the activation, even if short, of the signal failure has no influence on the
synchronization source selection process. This value can vary between 300ms and 1800ms
Wait-To-Restore time
The Wait-To-Restore time ensures that a prior fault in the synchronization source will only be considered
valid for this selection process if it is maintained without failure for a specified period of time. This parameter
can have values ranging from 0 to 12 minutes with 1 minute resolution. The default value is 5 minutes.
Table 5-14: Synchronism Sources parameters table