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ROCKWELL INTRODUCES LOWEST-COST INTEGRATED MODEM CHIPSET WITH 9600BPS
SEND/RECEIVE FAX AND V.22 BIS/V.42 BIS DATA

Available now, the RC229ATF/2 features the Rockwell Protocol Interface
supported by major software vendors *

NEWPORT BEACH, Calif. (November 16, 1992) -- Taking the lead in
providing the lowest system cost, highest performance modem technology
for computer communications, Rockwell International Corporation's
Digital Communications Division (DCD) today announced the first
integrated two-chip 9600 bps send/receive fax, low-speed data modem
chipset.  Targeted at the high-volume, low-cost integrated data/fax
modem market, the RC229ATF/2 provides the lowest-systems cost,
lowest-power and highest functionality product offering for computer
communications.

The RC229ATF/2 also is the first integrated 9600 bps send/receive low
speed data modem chipset which allows for the implementation of V.42
and MNP 2-4 error correction, V.42 bis and MNP 5 data compression in
the host software application via the Rockwell Protocol Interface
(RPI*/patent pending).  Supported by host software packages now
available from major software vendors, the RPI reduces the component
count of a PC- card modem significantly, enabling manufacturers to
pass along cost and power reductions to the end user.

With the RC229ATF/2, Rockwell offers the lowest, total system cost for
an integrated data/fax modem chipset with error correction and data
compression.  "Rockwell's integrated RC224ATF (2400 bps data,
9600/4800 bps send/receive fax) has pervaded the market since its
introduction in September, 1990," says Tony Zuccarino, product
manager.  "In response to the modem manufacturers' need to upgrade to
higher speed facsimile receive capabilities, the RC229ATF/2 offers the
lowest system-cost implementation possible . "

The compact, low-power RC229ATF/2 modem is a two-device set consisting
of a microcontroller packaged in a 68-pin PLCC or 80-pin PQFP and
modem data pump available in a 68-pin PLCC or a 100-pin PQFP.  In the
worldwide configuration, the RC229ATF/2-W provides maximum flexibility
to comply with international CCITT standards V.23, V.22 bis, V.22,
V.21 for data.  The EIA/TIA Class 1 facsimile control interface
enables the modem to send and receive Group 3 fax (V.29, V.27 ter,
V.21 Ch. 2) using an AT+F command set. In addition, error corrected
mode (ECM) facsimile operation for cellular applications and binary
file transfer (BFT) techniques can be implemented with the high speed
HDLC mode.

Features of the RC229ATF/2 include auto-dial and auto-answer
capabilities, data/fax discrimination, integrated call progress and
dialing, programmable speaker volume control, sleep and wake-up modes.
The RC229ATF/2 operates at 245mW and requires a single +5 VDC power
supply.

Backed by Rockwell's five-year warranty, the RC229ATF/2 is available
now.  The 10,000-quantity price is $19.85.
 
*Software support The following are current software vendors
supporting the RPI with data communications packages: Smith Micro
Software, Irvine, Calif., Tradewind Software, Glendora, Calif., Bit
Software, Fremont, Calif., MagicSoft/Word Perfect, Orem, Utah,
SoftKlone, Tallahassee, Fla., Phoenix Corp., Norwood, Mass.

Contact:
Eileen Algaze
(714) 833-6849
Eileen.Algazae@nb.rockwell.com