AudioCodes Mediant 500 E-SBC, Руководство пользователя

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User's Manual 824 Document #: LTRT-10437
Mediant 500 E-SBC
54.10.6.2 TDM Bus and Clock Timing Parameters
The TDM Bus parameters are described in the table below.
Table 54-49: TDM Bus and Clock Timing Parameters
Parameter Description
TDM Bus Parameters
Web/EMS: PCM Law Select
[PCMLawSelect]
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.
Web/EMS: Idle PCM Pattern
CLI: 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]
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.
Web/EMS: TDM Bus Local
Reference
[TDMBusLocalReference]
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.
Web/EMS: TDM Bus Enable
Fallback
[TDMBusEnableFallback]
Defines the automatic fallback of the clock.

[0] Manual (default)

[1] Auto Non-Revertive

[2] Auto Revertive
Web: TDM Bus Fallback Clock
Source
EMS: TDM Bus Fallback Determines the fallback clock source on which the device
synchronizes in the event of a clock failure.

[4] Network (default)