Specifications
AL2094S Designers Guide
AL2094S-E00-102 xmodus swiss GmbH Seite 5 / 30
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1.1 Overview
The xmodus AL2094S Socket Modem Family provides the OEM with a complete
V.92, V.34 and V.32bis data/fax/voice modem in a compact socket-mountable DIL-40
module. This designer's guide describes the modem hardware. AT commands and S
registers are defined in the AT Command Reference Manual.
The compact size and high level of integration of the Socket Modem minimizes real
estate and cost for motherboard and box modem applications. Its low power
consumption makes it ideal for portable applications such as pocket modems or
laptop, notebook and palmtop computers, and for a wide variety of embedded control
applications. The pin compatibility between the full range of AL Series Socket
Modems, ISDN and GSM Socket Modems allows upgrading and production
configurability without hardware changes.
Data compression (V.44/V.42 bis/MNP 5) and error correction (V.42/MNP 2-4) modes
are supported to maximize data throughput and data transfer integrity. V.44 is a more
efficient data compression than V.42 bis that significantly increases downstream
throughput thus reducing the download time for the types of files associated with
Internet use, such as Web pages and uncompressed files such as graphics, image,
audio, and document files. V.44 data compression can achieve compression rates of
more than 25% over V.42bis. Typical compression ratio for V.44 on Web type data is
approximately 6-1 resulting in overall effective data throughput rate up to 300 kbps for
a 56 kbpsconnection. Non-error-correcting mode is also supported.
In V.22 bis fast connect mode, the modem can connect at 2400 bps with a very short
training time, which is very efficient for small data transfers.
The SmartDAA system-powered DAA operates reliably without drawing power from
the line, unlike line-powered DAAs which operate poorly when line current is
insufficient due to long lines or poor line conditions. Enhanced features, such as
monitoring of local extension status without going off-hook, are also supported.
CX86500