Version 6.2
787
February 2011
SIP User's Manual
12. Configuration Parameters Reference
12.12.6.2
TDM Bus and Clock Timing Parameters
The TDM Bus parameters are described in the table below.
Table
12-52: TDM Bus and Clock Timing Parameters
Parameter
Description
TDM Bus
Parameters
Web/EMS: PCM Law Select
[PCMLawSelect]
Determines the type of PCM companding law in input/output TDM
bus.
[1]
Alaw = Alaw (default)
[3]
MuLaw = MuLaw
Notes:
For this parameter to take effect, a device reset is required.
Typically, A-Law is used for E1 spans and Mu-Law for T1/J1
spans.
Web/EMS: Idle PCM Pattern
[IdlePCMPattern]
Defines the PCM Pattern that is applied to the E1/T1 timeslot (B-
channel) when the channel is idle.
The range is 0 to 255. The default is set internally according to
the Law select 1 (0xFF for Mu-Law; 0x55 for A-law).
Note:
For this parameter to take effect, a device reset is required.
Web/EMS: Idle ABCD Pattern
[IdleABCDPattern]
Defines the ABCD (CAS) Pattern that is applied to the CAS
signaling bus when the channel is idle.
The valid range is 0x0 to 0xF. The default is -1 (i.e., default
pattern is 0000).
Notes:
For this parameter to take effect, a device reset is required.
This parameter is applicable only when using PSTN interface
with CAS protocols.
Web/EMS: TDM Bus Clock
Source
[TDMBusClockSource]
Selects the clock source to which the device synchronizes.
[1]
Internal = Generate clock from local source (default).
[4]
Network = Recover clock from PSTN line.
For detailed information on configuring the device's clock settings,
see ''Clock Settings'' on page
EMS/Web: TDM Bus Local
Reference
[TDMBusLocalReference]
Physical Trunk ID from which the device recovers (receives) its
clock synchronization.
The range is 0 to the maximum number of Trunks. The default is
0.
Note:
This parameter is applicable only if the parameter
TDMBusClockSource is set to 4 and the parameter
TDMBusPSTNAutoClockEnable is set to 0.
Web/EMS: TDM Bus Enable
Fallback
[TDMBusEnableFallback]
Defines the automatic fallback of the clock.
[0]
Manual (default)
[1]
Auto Non-Revertive
[2]
Auto Revertive
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