AudioCodes Mediant 8000, Инструкция по установке, эксплуатации и обслуживанию

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Version 6.6 521 October 2014
Installation & Operation Manual 38. Configuring the PSTN Subsystem
Parameter Name Type Provisioning Type Description
Auto Clock
Reference Mode Enum
Non
Revertive,Revertive
Instant Defines system behavior when
clock source with higher priority
returns to service after the failure.
Revertive
– Media Gateway will
switch to this source.
Non Revertive
– continue using
the current source until the latter
fails.
Note that when the clock
reference mode is set to Auto
Revertive and the higher priority
clock source is unstable, the
system will switch the clock
source each time the higher
priority clock fails and returns in
service .
Reference
Validation Time Integer Instant Defines the validation time (in
seconds) for reference clock.
5.
In the
TM External IF Settings
tab, configure parameters as described in the
table 'TM External IF Settings Parameters' below.
Table 38-26: TM External IF Settings Parameters
Parameter Name Type
Provisioning
Type
Description
External Reference
Type Enum
E1, DS1, T12, none
Online Defines the external line reference
(BITS) transmission format.
T1 Line Coding Enum
B8ZS, AMI
Online Defines line coding for the T1 clock
synchronization interfaces:

B8ZS – B8ZS line code

AMI – AMI line code
T1 Framing Enum
ESF, SF
Online Defines the framing method for the T1
clock synchronization interfaces:

ESF-Extended Super Frame

SF-Super Frame
Tx Pulse Shape Enum
db0, db7p5, db15,
db22p5
Instant Defines the quality of the transmission
signal on the clock synchronization
interfaces.