Tdm Bus And Clock Timing Parameters - AudioCodes Mediant 800B User Manual

57.10.6.2

TDM Bus and Clock Timing Parameters

The TDM Bus parameters are described in the table below.
Table 57-56: TDM Bus and Clock Timing Parameters
Parameter
TDM Bus Parameters
Web/EMS: PCM Law Select
[PCMLawSelect]
Web/EMS: Idle PCM Pattern
CLI: idle-pcm-pattern
[IdlePCMPattern]
Web/EMS: Idle ABCD Pattern
[IdleABCDPattern]
Web/EMS: TDM Bus Clock
Source
[TDMBusClockSource]
Web/EMS: TDM Bus Local
Reference
[TDMBusLocalReference]
Web/EMS: TDM Bus Enable
Fallback
[TDMBusEnableFallback]
Web: TDM Bus Fallback Clock
Source
EMS: TDM Bus Fallback
User's Manual
Determines the type of pulse-code modulation (PCM) companding
algorithm law in input and output TDM bus.

[1] Alaw

[3] MuLaw
The default value is automatically selected according to the Protocol
Type of the selected trunk: E1 defaults to ALaw, T1 defaults to
MuLaw. If the Protocol Type is set to NONE, the default is 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.
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.
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.
Determines the clock source to which the device synchronizes.

[1] Internal = (Default) Generate clock from local source.

[4] Network = Recover clock from PSTN line.
Note: For this parameter to take effect, a device reset is required.
Defines the 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.
Defines the automatic fallback of the clock.

[0] Manual (default)

[1] Auto Non-Revertive

[2] Auto Revertive
Determines the fallback clock source on which the device
synchronizes in the event of a clock failure.

[4] Network (default)
946
Mediant 800B Gateway and E-SBC
Description
Document #: LTRT-10620