Tdm Bus And Clock Timing Parameters; Table 6-42: Tdm Bus And Clock Timing Parameters - AudioCodes Mediant 2000 User Manual

SIP User's Manual

6.11.2 TDM Bus and Clock Timing Parameters

The TDM Bus parameters are described in the table below.
Parameter
TDM Bus Parameters
Web/EMS: PCM Law Select
[PCMLawSelect]
Web/EMS: Idle PCM Pattern
[IdlePCMPattern]
Web/EMS: Idle ABCD Pattern
[IdleABCDPattern]
Web/EMS: TDM Bus Clock Source
[TDMBusClockSource]
EMS/Web: TDM Bus Local Reference
[TDMBusLocalReference]
Version 5.8

Table 6-42: TDM Bus and Clock Timing Parameters

6. Configuration Parameters Reference
Description
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.
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.
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, refer to ''
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 Trunk ID 1.
Note: This parameter is applicable only if the
parameter TDMBusClockSource is set to 4 and the
parameter TDMBusPSTNAutoClockEnable is set to
0.
315
Clock Settings'' on page
October 2009
471 .