AudioCodes Ltd.
AC4830xC-C VoPP
14
Catalog Number: LTRT-00060
2.2.1 Voice Interface
The AC4830xC-C uses the Voice Interface for input and output of uncompressed voice,
data and fax. It performs voice input and output as a 64 kbps companded A-Law or
µ
-
Law PCM.
The voice input is received through PCMIN, and the voice output is sent through
PCMOUT.
PCMCLK is a 2.048 MHz clock that can be generated internally from the AC4830xC-
C, or externally from a codec.
PCMFS is the PCM Frame Sync, that is generated every 125
µ
sec to comply with the
E1 transmission rate of 8,000 frames per sec. PCMFS can be generated internally from
the AC4830xC-C, or externally from a codec.
The User can attach the AC4830xC-C directly to a PCM highway.
Figure
2-3: AC4830xC-C Voice and Signaling Interface
HPI
Memory
& I/O
Interface
TAP
PCM OUT
PCM IN
PCMFS
PCMCLK
Voice
Interface
AC4830xC-C
PCM Clock
Generator
Содержание AC4830 C-C Series
Страница 2: ......
Страница 12: ...AudioCodes Ltd AC4830xC C VoPP 10 Catalog Number LTRT 00060 Reader s Notes...
Страница 58: ...AudioCodes Ltd AC4830xC C VoPP 56 Catalog Number LTRT 00060 Figure 4 2 Interface Application Driving a Codec...
Страница 60: ...AudioCodes Ltd AC4830xC C VoPP 58 Catalog Number LTRT 00060 Reader s Notes...