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The 640 MEG Shareware Studio 5
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The 640 Meg Shareware Studio CD-ROM Volume V (Data Express)(1994).ISO
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tempdemo.lha
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BULLETINS
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ModemSettings
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1994-05-22
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13KB
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261 lines
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▀▀▀▀▀▀ ▀─ ─▀▀▀▀ ▀▀▀▀ ▀▀▀▀▀ ▀▀▀▀▀▀ ▀▀▀▀▀ ▀▀▀ ▀▀▀ ▀▀▀▀▀ ▀▀▀▀▀
_____________________________________________________________
/ _______________________________________ \
/ | <> <> <> <> <> <> <> <> <> | COURIER HST \
/ |_HS_AA_CD_OH_RD_SD_TR_MR_RS_CS_ARQ_SYN_| ==> 14400 \
/___________________________________________________________________\
| | | | | | | | | | | | | | | | | | | | | | | | | | | \____/ |
|__|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|__________|
\__/ \__/
===============================================================================
CAPTURE OF 14400 HST SETTINGS
===============================================================================
[ati4]
USRobotics Courier 14400 HST Settings...
B0 C1 E1 F1 M1 Q0 V1 X7
BAUD=19200 PARITY=N WORDLEN=8
DIAL=HUNT ON HOOK TIMER
&A3 &B1 &C1 &D2 &G2 &H1 &I0 &J0 &K3
&L0 &M4 &N0 &P0 &R2 &S0 &X0 &Y1
S00=000 S01=000 S02=043 S03=013
S04=010 S05=008 S06=002 S07=060
S08=002 S09=006 S10=007 S11=038
S12=050 S13=000 S14=000 S15=000
S16=000 S17=000 S18=000 S19=000
S20=000 S21=010 S22=017 S23=019
S24=150 S25=000 S26=001 S27=000
S28=008 S38=000
[ati5]
USRobotics Courier 14400 HST NRAM Settings...
DIAL=TONE B0 F1 M1 X7
BAUD=19200 PARITY=N WORDLEN=8
&A3 &B1 &G2 &H1 &I0 &J0 &K3 &L0
&M4 &N0 &P0 &R2 &S0 &X0 &Y1
S02=043 S03=013 S04=010 S05=008
S06=002 S07=060 S08=002 S09=006
S10=007 S11=038 S12=050 S13=000
S15=000 S19=000 S21=010 S22=017
S23=019 S24=150 S26=001 S27=000
S28=008 S38=000
~r
_____________________________________________________________
/ _______________________________________ \
/ | <> <> <> <> <> <> <> <> <> <> | COURIER HST \
/ |_HS_AA_CD_OH_RD_SD_TR_MR_RS_CS_SYN_ARQ| ==> 16800 DUAL \
/___________________________________________________________________\
\ | | | | | | | | | | | | | | | | | | | | | | | | | | \____/ /
\_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_________/
\__/ \__/
===============================================================================
CAPTURE OF 16800 DUAL SETTINGS
===============================================================================
[ati4]
USRobotics Courier 16800 HST Dual Standard Fax Settings...
B0 C1 E1 F1 M1 Q0 V1 X7
BAUD=38400 PARITY=N WORDLEN=8
DIAL=TONE ON HOOK TIMER
&A3 &B1 &C1 &D2 &G2 &H1 &I0 &K3 &L0 NOTE: &G2 and B0 is set
&M4 &N0 &P0 &R2 &S0 &T5 &X0 &Y1 %R0 for overseas callers.
S00=000 S01=000 S02=043 S03=013 S04=010 S05=008
S06=002 S07=060 S08=002 S09=006 S10=007 S11=070
S12=050 S13=000 S14=000 S15=000 S16=000 S17=000
S18=000 S19=000 S20=000 S21=010 S22=017 S23=019
S24=150 S25=005 S26=001 S27=000 S28=008 S29=020
S30=000 S31=000 S32=001 S33=000 S34=000 S35=000
S36=000 S37=000 S38=000 S39=000 S40=000 S41=000
S42=126 S43=200 S44=015
[ati5]
USRobotics Courier 16800 HST Dual Standard Fax NVRAM Settings...
DIAL=TONE B0 F1 M1 X7
BAUD=19200 PARITY=N WORDLEN=8
&A3 &B1 &G2 &H1 &I0 &K1 &L0 &M4
&N0 &P0 &R2 &S0 &T5 &X0 &Y1 %R0
S02=043 S03=013 S04=010 S05=008 S06=002 S07=060
S08=002 S09=006 S10=007 S11=070 S12=050 S13=000
S15=000 S19=000 S21=010 S22=017 S23=019 S24=150
S25=005 S26=001 S27=000 S28=008 S29=020 S32=001
S33=000 S34=000 S35=000 S36=000 S37=000 S38=000
S41=000 S42=126 S43=200 S44=015
~r
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
PREFERENCES:
1. RATE 19,200 baud
2. F8N1
3. RTS/CTS handshaking (MANDATORY!!!!)
4. Buffering 4K--->try reducing to 2K after initial trials if rate
below 1640cps or if SD/TR/CS/RS lights blink
with an established V.42bis system that is known
to operate correctly.
~r
.-----------------.
| HST INFORMATION |
`-----------------'
The original HST modem has a carrier rate of 9600bps (not baud; baud doesn't
mean what you think it means). Bps means bits per second. The newer model of
HST has a maximum carrier rate of 14400bps, and THERE IS NO COMPRESSION USED TO
ACCOMPLISH THAT. The Dual Standard modem has the 14400bps HST capability, but
will optionally allow v.32 connections. v.32 has a carrier rate of 9600bps in
both directions (as opposed to HST modulation, which can only communicate at
9600/14400 in one direction at a time; it communicates in the other direction
at 300 or 450bps). The newest Dual Standard models support v.32bis, which is
14400bps in both directions.
That is all without compression or start/stop bit stripping. MNP5 gives you a
theoretical possible 2:1 compression ratio; v.42bis gives you a theoretical
possible 4:1 compression ratio. Therefore the maximum throughput (not carrier
rate) you can get on the old model is 1920cps (characters per second), and for
the new model is 3840cps. The reason you can't go any higher on the 14400
model, even with theoretical 4:1 compression, is that the highest port rate you
can lock the modem at is 38400bps, which at a fixed character size of 10
bits/character gives you 3840cps. The actual throughputs most people
experience are usually much lower than the maximum.
V.32
is a modulation standard to get 9600 full duplex, it is supported by the
Telebit T2500 and the USR Dual Standard. Both companies make V.32 only modems
as well. V.32 modems from Intel and PP&S tend to be cheaper than either the
Telebit or the USR V.32 modems.
V.32bis
is a modulation standard to get 14.4K full duplex, it is supported by the newer
USR Dual standard modems as well as modems made by DigiComm. Final approval of
V.32bis is not until next month, however it is not likely to change.
V.42
is a standard for error detection/correction MNP levels 1-4 are a subset of
V.42, allowing V.42 modems to use MNP error detection/ correction. This mode
is supported by the Telebit T2500, the USR Dual Standard and the USR HST 14.4.
It is supported by most newer V.32 modems by other companies as well.
V.42bis
is a standard for on the fly compression. It normally comes with V.42 error
correction/detection. V.42bis allows a maximum compresion of 4:1 however like
any other compression system it will not cause a very large increase in speed
on compressed files, unlike MNP-5 it will not however increase the amount of
data (slowing things down). This is supported by the Telebit T2500 and the USR
Dual Standard and HST 14.4 modems. It is supported by most of the newer V.32
modems as well.
~r
.--------------------.
| V.FAST INFORMATION |
`--------------------'
U.S. ROBOTICS ANNOUNCES THE LAST MODEM YOU'LL EVER BUY
Provides Migration Path to Forthcoming CCITT 28.8 Kbps Standard
SKOKIE, Ill. -- June 8, 1992 -- U.S. Robotics today announced an upgrade
program for the CCITT-proposed standard of 28.8 Kbps, previously referred to as
V.FAST. The Courier V.32bis, Courier HST Dual Standard and Shared Access Modem
Sharing Kits are the products currently included in the program. Field
upgrades will be available for $299 as soon as the CCITT 28.8 Kbps draft
recommendation is completed. Official approval of the standard is not expected
until January, 1994.
"The CCITT-proposed 28.8 Kbps standard won't be a reality for most
manufacturers until 1994," said Jonathan Zakin, U.S. Robotics executive vice
president, sales and marketing. "By offering modems ready for 28.8 Kbps now,
we're providing insurance against technical obsolescence. Customers can
purchase a Courier high-speed modem or Shared Access Modem Sharing Kit now and
take advantage of the most updated technology available. When the 28.8 Kbps
standard becomes available later, they'll already have a cost-effective upgrade
option and won't have to re-invest in new equipment."
"Key to the 28.8 Kbps program is the fact that the upgrade to the Courier
high-speed modems and Shared Access Modem Sharing Kits can be completed by the
end user at their worksite, which reduces their "down" time and eliminates
excess costs like shipping and handling," continued Zakin. "You may hear about
other 28.8 Kbps modems that are available now, but until the standard is
defined, no one knows what hardware will be needed to comply. Our unique modem
architecture makes future "field" upgrades a realistic and simple procedure."
Because of U.S. Robotics' advanced modular modem architecture, the company's
Courier V.32bis, Courier HST Dual Standard, and Shared Access modems are
readily upgradable to 28.8 Kbps. The modems are made up of a motherboard and a
smaller daughterboard, which holds the modems' microprocessors and firmware.
The current, high-speed daughterboard can easily be replaced with a new board
containing the 28.8 Kbps CCITT standard. U.S. Robotics is the only modem
manufacturer to implement this kind of flexible design.
"In the CCITT, the previously called "V.FAST" standard has gained universal
support at the 28.8 Kbps speed," said Dale Walsh, U.S. Robotics vice
president, advanced development and participant in the CCITT committee on the
28.8 Kbps standard. "This is how our modular architecture works. The data
pump (which executes the modulation and demodulation of the data), and the key
controller functions (which perform the data compression, error control and the
AT command set) are on one board, making upgrades simple. We can easily make
the data pump faster and upgrade the controller functions to keep up with the
new speed. It's all in just one small plug-in card."
Because compatibility with CCITT standards is crucial, U.S. Robotics'
availability and implementation of the 28.8 Kbps standard will depend on the
CCITT's progress. At this time, the standard is expected to define a connect
speed of 28.8 Kbps, two times faster than V.32 bis, the fastest CCITT standard
now available.
U.S. Robotics is one of the first vendors to announce a program for 28.8 Kbps
compatibility. The company has a history of industry "firsts," including the
first CCITT V.32 bis modem from a major manufacturer, the first self-managing
modem management system and the first portable CCITT V.32 modem.
U.S. Robotics will upgrade any Modem Sharing Kit to 28.8 Kbps. Current
Courier models, which have the smaller footprint and a higher, 57.6 Kbps, DCE
to DTE (modem-to-computer) interface speed, are also upgradable. The company's
upgrade program does not include WorldPort and Sportster modems.
U.S. Robotics Courier modems offer a wide range of features, including fax,
remote configuration, and synchronous capabilities. The Shared Access Modem
Sharing Kits, which began shipping in March, 1992, allow for the pooling of
modems on a LAN so that a LAN user can access them for dial-in or dial-out
communications.
The following products will be upgradable to 28.8 Kbps:
Courier V.32 bis, internal and external (only 57,6 kpbs versions) Courier HST
Dual Standard, internal and external (57 kbps only) Courier V.32 bis FAX,
internal and external Courier HST Dual Standard FAX, internal and external
Shared Access Modem Sharing Kit Single Port and Dual Port
U.S. Robotics, Inc., (NASDAQ: USRX) is a leading designer, manufacturer and
marketer of data communications hardware and software. Product lines include
the Shared Access communications resource-sharing products; Total Control modem
management system for central data sites; BLAST software products for terminal
emulation, file transfer and remote control; Courier data and fax/data modems
for corporate users; WorldPort data and fax/data portable modems for traveling
professionals; and Sportster data and fax/data modems for small business, home
office and entry-level users. Both corporate headquarters and manufacturing
operations are based in Skokie, Ill. U.S. Robotics owns and operates Miracom
Technology Ltd., Slough, England, and U.S. Robotics, s.a., Lille, France. The
company markets its products to business, industry, government agencies and
original equipment manufacturers.
~r