Version 7.0 969 Mediant 3000
User's Manual 58. Configuration Parameters Reference
Parameter Description
Note: The parameter is applicable only if the parameter
TDMBusClockSource is set to 4 and the parameter
TDMBusPSTNAutoClockEnable is set to 0.
TDM Bus Enable Fallback
[TDMBusEnableFallback]
Defines the automatic fallback of the clock. This sets the fallback
clock method between primary and secondary BITS clock
references.
 [0] Manual (default)
 [1] Auto Non-Revertive

Auto Revertive
TDM Bus Fallback Clock
Source
[TDMBusFallbackClock]
Determines the fallback clock source on which the device
synchronizes in the event of a clock failure.
 [4] Network (default)
 [8] H.110_A
 [9] H.110_B
 [10] NetReference1
 [11] NetReference2
TDM Bus Master-Slave
Selection
[TDMBusMasterSlaveSelection]
Defines the SC/MVIP/H.100/H.110.
 [0] SlaveMode = (Default) Slave mode (another device must
supply the clock to the TDM bus) or Master mode (the device is
the clock source for the TDM bus) or Secondary Master mode
(for H100/H110 Bus only).
 [1] MasterMode = H110A Master in Master mode.
 [2] SecondaryMasterMode = H.110B Master.
TDM Bus Net Reference Speed
[TDMBusNetrefSpeed]
Defines the NetRef frequency (for both generation and
synchronization).
 [0] 8 kHz (default)
 [1] 1.544 MHz
 [2] 2.048 MHz
TDM Bus PSTN Auto FallBack
Clock
[TDMBusPSTNAutoClockEnabl
e]
Enables the PSTN trunk Auto-Fallback Clock feature.
 [0] Disable = (Default) Recovers the clock from the E1/T1 line
defined by the parameter TDMBusLocalReference.
 [1] Enable = Recovers the clock from any connected
synchronized slave E1/T1 line. If this trunk loses its
synchronization, the device attempts to recover the clock from
the next trunk. Note that initially, the device attempts to recover
the clock from the trunk defined by the parameter
TDMBusLocalReference.
Notes:
 For the parameter to take effect, a device reset is required.
 The parameter is applicable only if the TDMBusClockSource
parameter is set to 4.
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