Avaya Configuring TDM Services Manual de usuario Pagina 18

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Configuring TDM Services
1-2
309426-14.10 Rev 01
Switched H.110 TDM Circuits
Switched H.110 TDM circuits allow you to establish a connection between two
dual synchronous connectors. You use this type of circuit primarily for local
connections.
CES H.110 TDM Circuits
CES H.110 TDM circuits connect an ATM permanent virtual circuit (PVC) to an
H.110-connected device. CES H.110 TDM circuits transmit TDM data over an
ATM network using Circuit Emulation Services (CES). When you use this type of
circuit, you must configure CES on an ATM PVC to emulate TDM functionality
on that ATM PVC.
For information on how to configure CES, see Configuring ATM Services.
The Role of CES
CES is a set of services that supports the emulation of TDM circuits over an ATM
network. CES provides a constant bit rate (CBR) virtual circuit that performs just
like a synchronous point-to-point private line.
When configuring CES to transfer TDM data, you must configure the ATM PVC
to use the ATM adaptation layer 1 (AAL 1) encapsulation.
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