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.
Summary of Contents for Mediant 8000
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Page 775: ...Part VI Maintenance This part describes the Mediant 8000 maintenance procedures...
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Page 879: ...Part VIII Appendices This part describes additional Mediant 8000 configuration procedures...
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