Version 6.6 465 October 2014
Installation & Operation Manual 38. Configuring the PSTN Subsystem
38.4 Configuring the E1/T1 Trunks
The term Trunk is commonly used to define a connection between switches within the
PSTN exchange. A Trunk contains a specific number of channels that may carry voice
or signaling messages (depending on the PSTN protocols being used).
E1/T1 trunks are provided by both the TP-6310 and TP-8410 Media Gateway boards.
For TP-8410 Media Gateway boards, physical E1/T1 trunk connectors are available
on the 8410/RTM module, located at the back of the Mediant 8000 chassis. For
additional details, see 'TP-8410 Media Gateway Board' on page 52.
For TP-6310 Media Gateway's, E1/T1 trunks are “confined” inside the STM-1/OC3
optical links or T3 interfaces.
38.4.1 Status in the EMS
The Status of the Trunk is represented by standard Operational State and
Administrative State attributes.
When the Trunk is functioning properly, its Operational State is set to Enabled
and the trunk is colored green in the EMS.
When the Trunk is not functioning properly (not synchronized with the remote
side), its Operational State is set to Disabled and the trunk is colored red in the
EMS.
When the Trunk is locked, its Administrative State is set to Locked and the trunk
is colored grey in the EMS.
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