home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
The Pier Shareware 8
/
The Pier Shareware #8 (The Pier Exchange) (1996).ISO
/
009
/
1024419.txt
< prev
next >
Wrap
Text File
|
1995-07-24
|
3KB
|
89 lines
USRobotics Introduces 33.6 Kbps
Welcome to the next level of high speed analog data communications -
33.6 Kbps. Your Courier modem contains new enhanced V.34 software
that provides the capability for two new connection rates: 31.2 Kbps and
33.6 Kbps. The new software also improves general throughput as a
result of advanced design, larger block sizes, and the implementation of
selective reject.
Higher Connection Rates
While line conditions may not always allow for 33.6 connections, the
new software enhances overall performance and reliability, making it
more likely to achieve and maintain 28.8 connections. It can even add up
to 4800 bps to your average V.34 connection rate.
Selective Reject
Selective reject is part of the improved software for the "V.Everything"
modem. You may notice significant throughput improvements over
noisy lines when connecting with other modems using this feature, as the
number of retransmitted blocks is reduced.
Upgrades
31.2 and 33.6 Kbps connection rates are only possible when connecting
with other "V.Everything" modems upgraded to the latest software
revision. Be sure that friends and business associates using U.S. Robotics
Courier modems upgrade to the new V.34 software, so that they too can
take advantage of the higher connection rates and improved throughput
capabilities. Upgrades are free to anyone who owns a U.S. Robotics
"V.Everything" modem. Simply download the new software from our
free BBS service. Complete instructions for performing software upgrades
are included in the Courier manual.
New Parameters
Result Codes
The following new verbal connect messages and numeric result codes are
included.
Verbal Numeric
--------------------- -------
CONNECT 31200 151
CONNECT 31200/ARQ 152
CONNECT 31200/V34 153
CONNECT 31200/ARQ/V34 154
CONNECT 33600 155
CONNECT 33600/ARQ 156
CONNECT 33600/V34 157
CONNECT 33600/ARQ/V34 158
New Inquiry Displays
The ATI6 diagnostic screen has an extended protocol field which
displays the actual block and window sizes, and indicates when selective
reject has been negotiated. The I11 screen displays "V34+" for
connections with other U.S. Robotics modems using the new V.34
software.
Fixed Connection Rate
The &N command for fixing connection rates has been extended to
support the two new speeds, adding &N15 (31.2 Kbps) and &N16 (33.6
Kbps).
Feature Disable
31.2 and 33.6 Kbps may be disabled by issuing the following AT
command:
AT S56.5=1
Selective reject can be disabled by issuing the following command:
AT S51.6=1
Disabling of these features is only necessary for certain troubleshooting
purposes.
Synchronous
Fixed synchronous mode can also operate at 31.2 and 33.6 Kbps under
V.34 with the new software upgrade. The maximum synchronous rate
under V.25bis is 19.2 Kbps.
[1.024.419]