PEB20954(1999) Ver la hoja de datos (PDF) - Infineon Technologies
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PEB20954 Datasheet PDF : 132 Pages
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1.3
Typical Applications
The SIDEC can be used for various applications.
Figure 2 to Figure 5 display typical examples.
PEB 20954
PEF 20954
Introduction
SDH or
PDH
Network
IWU
FALC PCM30
LH
SIDEC
PCM30
IWE8
ATM
PEB 2255
PEB 20954
PXB 4220 Network
IWU
SDH or
PDH
Network
Near End
SDH:
PDH:
ATM:
Synchronous Digital Hierarchy
Plesiochronous Digital Hierarchy
Asynchronous Transfer Mode
Far End
FALC:
IWE8:
IWU:
Frame and Line Interface Component
Interworking Element (handles up to 8 PCM30 lines)
Interworking Unit
Figure 2 SIDEC in a Circuit Emulation Service Carried over ATM
In this interworking unit there are two SIEMENS products connected to the SIDEC. The
FALC PEB 2255 serves as a frame and line interface component whereas the IWE8 PXB
4220 operates as an interworking element.
The delays of networks and the inter working units are usually long. In the application
above the SIDEC cancels the echo that is generated by reflection on the near end side
and heard by the far end speaker. The SIDEC can cancel end echo paths (SDH or PDH
Network on near end side) up to 128 ms. For details see Figure 11.
For the set up illustrated in Figure 2 a application note "Using SIDEC in a Voice over
ATM Application" is available.
Preliminary Data Sheet
9
04.99
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