Rockwell Telecommunications introduced the newest member of its wireless
products family: the RC32ACC, a cellular digital packet data (CDPD),
V.32bis data modem chipset. The small form factor RC32ACC targets the
rapidly increasing wireless data marketplace, providing OEMs with a
low-power, cost-effective mobile communications solution.

The two-device RC32ACC forms the engine of a CDPD system, incorporating
CDPD packet switched technology to provide a secure and reliable digital
data link for wireless communications. The device set offers a range of
connectivity options for mobile computing applications, enabling end-users
to communicate using landline, cellular or digital packet radio
technology.

CDPD, which uses the same cellular network for both voice and data
messages, delivers a broad range of wireless data services to mobile
end-users -- including email and facsimile capability -- in a single
device. Features include:

Low-cost service -- CDPD sends packets of data in the gaps between normal
voice calls at speeds of up to 19.2 Kbps, invisibly switching packets from
one channel to another to maximize channel capacity without compromising
normal voice service. End-user costs are lowered because there is no
continuous online cost, transmission times are shorter and users pay only
for delivered packets.

Reliability & Security -- By providing connectionless service with
automatic roaming and hand off, CDPD ensures that no calls are dropped.
Additional data protection is provided by encrypted transmission.

Low-cost start-up -- CDPD builds on the strengths of the existing cellular
phone service, allowing manufacturers to provide CDPD systems to end-users
by upgrading their existing AMPs cellular phone systems. CDPD also
utilizes Internet Protocol to send messages across the network, which
guarantees the availability of a wide range of applications software.

The RC32ACC provides V.32bis data/V.17 fax dial-up modem capability, and
supports Cellular Direct Connection to selected cellular telephones.
Cellular Switch Cellular can also be used as an alternative to CDPD packet
switch data in areas with no CDPD coverage, or to provide a cost-effective
option for sending long files or faxes.

The RC32ACC is pin-compatible with Rockwell's wireline RC144ACL data/fax
modem, allowing OEMs an easy upgrade path for existing modem
implementations. The modem supports 14.4 Kbps data and 14.4 Kbps
send/receive Group 3 facsimile, with downward compatibility from 7200 to
75 bps for data and 7200 to 2400 bps for facsimile transmission. The
device set also supports AT commands, V.42, MNP 2-4 error correction and
V.42bis and MNP 5 data compression, EIA/TIA 578 Class 1 fax standard.

The RC32ACC is housed in a two-device PLCC (plastic leaded chip carrier) or
a low-profile, three-device PQFP (plastic quad flat pack).

Samples of the RC32ACC are available December 1994; volume production
begins in January 1995. Pricing for 10K quantities is $60. For more
information or technical documentation, call (800) 436-9988 or fax (818)
365-1876.

Inquiries to:

  Digital Communications Division
  4311 Jamboree Rd., M/S 501-300
  Newport Beach, CA  92658-8902

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