CX86500-26 데이터 시트보기 (PDF) - Conexant Systems
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CX86500-26 Datasheet PDF : 82 Pages
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1.3.3.2
1.3.3.3
1.3.3.4
CX86500 SCXV.xx Modem Data Sheet
The following modes are also supported in V.92 models, when connected to a V.92-
compatible server supporting the feature listed.
• Quick connect, which allows quicker subsequent connection to a server using stored
line parameters obtained during the initial connection. The server must support quick
connect profiles.
• Modem-on-Hold, which allows detection and reporting of incoming phone calls on
the PSTN with enabled Call Waiting. If the incoming call is accepted by the user, the
user has a pre-defined amount of time of holding the data connection for a brief
conversation. The data connection resumes upon incoming call termination. The
server must support Modem-on-Hold functionality.
• PCM upstream, which boosts the upstream data rates between the user and V.92
server. A maximum of 48 kbps upstream rate is supported when connected to a V.92
server that supports PCM upstream.
In V.34 data modem mode (V.92 and V.34 models), the modem can operate in 2-wire,
full-duplex, asynchronous modes at line rates up to 33.6 kbps. Data modem modes
perform complete handshake and data rate negotiations. Using V.34 modulation to
optimize modem configuration for line conditions, the modem can connect at the highest
data rate that the channel can support from 33600 bps down to 2400 bps with automatic
fallback. Automode operation in V.34 is provided in accordance with PN3320 and in
V.32 bis in accordance with PN2330. All tone and pattern detection functions required by
the applicable ITU or Bell standards are supported.
In V.32 bis data modem mode, the modem can operate at line speeds up to 14.4 kbps.
V.44 Data Compression
V.44 provides more efficient data compression than V.42 bis that significantly decreases
the download time for the types of files associated with Internet use. This significant
improvement is most noticeable when browsing and searching the web since HTML text
files are highly compressible. (The improved performance amount varies both with the
actual format and with the content of individual pages and files.)
Synchronous Access Mode (SAM) - Video Conferencing
V.80 Synchronous Access Mode between the modem and the host/DTE is provided for
host-controlled communication protocols, e.g., H.324 video conferencing applications.
Voice Pass-Through Mode
Voice Pass-Through Mode supports data transfer sampled at 8 KHz. Mu-Law and A-Law
are supported both in serial and parallel modes. 14-bit PCM is supported in parallel mode
only.
102287F
Conexant
1-5
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