Paradyne 9126-II User Manual download pdf (Page 76)

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4. Configuration Options

4-32

September 2002 9128-A2-GB20-80

Secondary Clock Source

Possible Settings: Net1, DSX, Internal, DBM

Default Setting: Internal

Provides a secondary clock source when the primary clock source fails. The source

selected for this configuration option provides all of the timing within the unit and the

clocks for all of the external interfaces.

The clock source will switch back to primary when the primary clock source returns and is

stable for 10 seconds. If the secondary clock source fails, the clock source will switch to

internal. The clock source will switch back to primary when the primary clock source

returns and is stable for 10 seconds.

NOTE: For the Primary and Secondary Clock Source options, only Internal can be

selected for both options. All other selections must have different settings (e.g., if

Primary Clock Source is set to Net1, Secondary Clock Source cannot be set to Net1).

Net1 – The secondary clock is derived from the Network1 T1 interface.

DSX – The secondary clock for the unit is derived from the DSX-1 interface. This setting

only appears if the DSX-1 interface is enabled.

Internal – The secondary clock is the internal clock.

DBM – The secondary clock is derived from the DBM. This selection only appears if the

DBM is installed and enabled.

Table 4-5. General System Options (2 of 3)

1 2 ... 71 72 73 74 75 76 77 78 79 80 81 ... 469 470

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Paradyne 9126-II User Manual Page 76

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