Specifications

Installation and Operation Manual Chapter 3 Configuration
MPW-1 MP-4100 Ver. 2.0 Configuring Pseudowires as System Timing References 3-31
9. Type s to save the configuration.
10. After completing the configuration, the new set of endpoints appear on the
Interfaces screen.
11. Repeat the procedure for any additional endpoints.
3.5 Configuring Pseudowires as System Timing
References
MPW-1 has independent adaptive clock recovery mechanisms for each
pseudowire, which recover the original timing (clock rate) of the far end source
of each pseudowire.
The recovered mechanisms can provide the recovered clock signals to serve as
timing references for the Megaplex-4100 nodal timing subsystem (refer to the
Megaplex-4100 Installation and Operation Manual for a description of this
subsystem).
To select pseudowires as timing reference, first select the appropriate
pseudowires of the desired MPW-1 modules, and then include them in the master
and/or fallback list of clock sources.
You can select up to 10 pseudowires as master clock sources, and up to 10
additional pseudowires as fallback sources, for a total of 20 pseudowires per
Megaplex-4100. Any pseudowire can be included only once, either as master or
as fallback source.
You cannot select HDLCoPSN pseudowires as clock sources.
³ To configure the recovered clock sources that can be used as timing references:
1. Navigate to Configuration > System > Clock Source.
2. Select Recovered.
Table 3-12 describes the recovered clock source parameters.
Table 3-12. Recovered Clock Source Parameters
Parameter Function Values
Slot Displays the slot of the selected
pseudowire
The allowed range is I/O-1 to I/O-10.
Default: I/O-1
Type Displays the clock source type Always ADAPTIVE
ID Specifies the index number of the
recovered clock source to be
configured
The allowed range is 1 to 20.
Default: 1
PW Number Specifies the pseudowire index
number that will be the source with
the selected index number
The allowed range is 1 to 640.
1 – number of allowed pseudowire per device.
Default: the first index number of an existing
pseudowire