AC4830XC-C [ETC]
V用于客户应用的VoP处理器 ; V用于客户应用的的VoP处理器\n
| 型号： | AC4830XC-C |
| 厂家： | 
ETC |
| 描述： | V用于客户应用的VoP处理器
|
| 文件： | 总2页 (文件大小：127K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AC4830xC-C
A
udio odes
C
Voice over Packet Processor for Client Applications
Functional Description
Overview
The AC4830xC-C supports 1, 2 or 4 low bit rate voice, fax or data transmission channels. For voice
transmission, the analog inputs are digitized by external PCM codecs, input through the
AC4830xC-C's PCM interface, and compressed to one of the supported bit rates. The compressed voice/fax/data
bit streams are transmitted to the host processor through the AC4830xC-C's Parallel Interface.
The voice receive operation is performed simultaneously with the voice transmit operation. The compressed
voice/fax packets from a remote unit are received from the host processor through the Parallel Interface.
The packetized voice/fax bit streams are de-compressed to 64 kbps µ/A-law PCM bit streams and output
through the PCM interface to a time division multiplexed PCM highway or external PCM codecs. The
channels can operate simultaneously with different voice coders or fax relay at different bit rates in each
channel. The packet exchange with the host depend on the frame size of the selected voice codec. In every
access to the AC4830xC-C the host reads the outgoing voice/fax payload and status packet and writes the
incoming voice/fax payload and control packet.
Soft upgradability
The AC4830xC-C feature set can be updated by a downloadable software upgrade by the host processor
prior to start of operation. This allows the addition of new features in future product releases without system
hardware modifications.
Selected specifications
Ordering information
Number of channels
Voice codecs
1, 2 or 4
Device name
Channels
G.729A CS-ACELP,
G.723.1 6.3/5.3 kbps,
G.727 E-ADPCM,
AC48301CB-C
AC48301CE1-C
AC48301CE2-C
AC48301CE3-C
AC48302CB-C
AC48302CE1-C
AC48302CE2-C
AC48302CE3-C
AC48304CB-C
AC48304CE1-C
AC48304CE2-C
1
1
1
1
2
2
2
2
4
4
4
G.726 ADPCM,
G.711 PCM,
NetCoder* @ 6.4-9.6 kbps
G3 2.4 - 14.4 kbps,
T.38 or FRF.11 compliant
Bellcore standard
Fax relay
Caller ID
Voice/fax
Automatic switching
G.168 compliant,
Echo canceller
25ms tail length for AC48301,
AC48302
15ms tail length for AC48304
DTMF (TIA 464B), call progress
and user defined tone pairs
E&M, 1mS resolution
-31dB : 31dB, 1.0dB steps
64 kbps, compatible with PCM
codecs and PCM highways
µm/A- law (selectable)
144 pin TQFP
Signaling
In-band
Input/output gain
PCM Interface
Specifications subject to change without prior notice.
PCM companding
Package
International Headquarters
USA
4 Hahoresh Road, Yehud, Israel 56470
2890 Zanker Rd., San Jose, CA 95134
Tel: +972 (3) 539-4000 Fax: +972 (3) 539-4040
Tel: (408) 577-0488 Fax: (408) 577-0492
E-mail: marketing@audiocodes.com www.audiocodes.com
AC4830xC-C
A
udio odes
C
Voice over Packet Processor for Client Applications
Features
1, 2 or 4 channels of G.729A, G.723.1,
G.727, G.726, G.711 and NetCoder voice
codecs
DTMF detection and generation
Call-progress and user-defined tones
generation
T.38 or FRF.11 compliant fax relay at 2.4 -
14.4 kbps
Low cost
Parallel host processor interface
Independent channel
operation
Caller ID support
Selectable µ/A-law PCM codec interface
Automatic switching to PCM or ADPCM
upon fax/data detection
PCM highway interface for voice, fax, data
and signaling
Toll quality voice
compression
G.168 compliant 25ms length adaptive
echo canceller (15ms for AC48304C-C)
Input and output gain control
E&M signaling option
Robust bandwidth
-saving fax/data relay
High performance Voice Activity Detector
(VAD) and Comfort Noise Generator (CNG)
Small footprint
Low power
consumption
Description
Cable telephony
access devices
The AC4830xC-C VoP processor is a 1, 2 or 4 ports Voice over Packet Processor that
combines toll quality low bit rate voice compression, T.38 compliant fax relay and other voice
band processing functions. The AC4830xC-C features G.723.1, G.729A, G.711, G.726 and
G.727 standard ITU codecs, as well as the NetCoder, a proprietary, high quality 6.4-9.6 kbps
coder. The codec can be selected independently by the user for each channel. An adaptive,
G.168 compliant echo canceller, a high quality DTMF and Tone Signaling detector and other
voice processing features makes the AC4830xC-C an ideal voice processing engine for a
variety of Voice over IP, Voice over DSL and other voice-over-packet terminal applications.
SOHO voice/data
access devices
DSL access devices
Voice enabled
set-top boxes
相关型号：
©2020 ICPDF网 联系我们和版权申明