Dear Customer - Digicom LEONARDO56 User Manual

Generality
1. GENERALITY
This operating manual describes the installation procedures and the main
features of the Leonardo 56 modem family. Leonardo 56 is the perfect modem
fax sulution for applications that require ultra high speed and reliability over a
remote user analog line: the ideal solution for data, and fax, communication
for professional, office or the home user.
This operating manual is for the following modem: Leonardo 56 external
RS232 & USB (PC or Macintosh), Leonardo 56 internal ISA card (PC) and
Leonardo PC Card (PC and Macintosh). See the details of the installation
procedure of your enviromental in the installation chapter.

DEAR CUSTOMER,

Your Leonardo 56 complies with the 56Kbps standard
according to the ITU-TV.90 regulation for data communication
up to 56000 bps.
The V.90 standard, like the K56Flex, has an unbalanced
connection speed. It means that you have a connection where
data are received at the maximum speed of 56000 bps and sent at the
maximum speed of 33.600 bps.
The unbalance, due to the technical limitations of the analog telephone lines,
allows to carry out connections with top performances in applications of
Internet access or remote access.
In order to reach the connection speed of 56000 bps, according to the 56K
technology, one of the two modems must be connected to a digital network
(usually ISDN or *64 in G703/G7047). In fact, the modems of the Services
Provider (Internet POP or access servers) are special ones, like "Central
Site Modem"(CSM).
The maximum speed, when receiving data, in users connections over analog
line is 33.600 bps.
ADDITIONAL AT COMMAND FOR 56K
Your Leonardo 56 has been tested with the most popular Communication
software running on PC or Macintosh platforms: the correct initialisation string
to enable 56K speed is:
AT+MS=12,1,300,56000,1,0
1.1