PEB20954(1999) Ver la hoja de datos (PDF) - Infineon Technologies
Número de pieza
componentes Descripción
Lista de partido
PEB20954 Datasheet PDF : 132 Pages
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POTS
POTS
POTS
2 wires
SLIC
SLIC
SLIC
SLIC
4 wires
SICOFI
(CODEC)
PEB 2466
POTS
Echo
POTS
SICOFI
SLIC
(CODEC)
SLIC
PEB 2466
POTS
PBX:
SICOFI:
SLIC:
Private Branch eXchange
Signal Processing Codec Filter
Subscriber Line Interface Circuit
PEB 20954
PEF 20954
Introduction
PCM30
PBX
SIDEC
PCM30
FALC
LH
PEB 2255
E1/T1
POTS: Plain Old Telephone Service
FALC: Frame and Line Interface Component
Figure 4 SIDEC in a Private Branch Exchange (PBX)
SIDEC can be used in a PBX or Central Office (CO) to cancel the echo next to the
customer side (near end echo). The echo delay is kept short. The delay for this
application is usually less than 64ms and the SIDEC can cancel up to 32 channels.
Figure 4 shows a PBX with a T1/E1 interface FALC LH to the CO on the one side. On
the other side analog phones are connected.
A possible SIEMENS solution with the SICOFI (includes D/A and A/D conversion) and
the SLIC (hybrid) to connect the analog phone is shown above.
Preliminary Data Sheet
11
04.99
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