W8SDZ@WSMR-SIMTEL20.ARMY.MIL (Keith Petersen) (11/21/88)
Here are the technical specs for USRobotics' new Courier V.32 modem.
This is provided "as-is" for its informational value. I am not the
author. This was provided by USR.
--Keith
--cut-here--
Courier V.32 modem
The Courier V.32 modem uses state-of-the-art modem chip technology
to bring a cost-effective, easy-to-use data communications solution to
users requiring true full-duplex or international standard operation.
In addition to CCITT V.32 capability, the Courier V.32 provides
full CCITT and Bell standards compatibility at 2400, 1200 and 300 bps,
with industry-standard MNP Class 1 through 5 error control and data
compression, increasing error-free throughput up to 80 percent.
Courier V.32 is designed for applications requiring true
full-duplex and/or synchronous transmission at high speeds. These
applications include host-to-host or micro-to-mainframe communication,
remote LAN bridging, dedicated leased line service, leased line dial
backup and situations requiring high-speed international standards
compatibility.
The Courier V.32 provides asynchronous or synchronous transmission
on dial-up or two-wireleased lines. Its synchronous capability is
available at all speeds except 300 bps.
While most synchronous modems offer no auto-dialing capability, the
Courier V.32 modem provides a synchronous auto-dialing capability, in
which the modem automatically dials a phone number stored in nonvolatile
RAM, then establishes a synchronous data link.
For asynchronous operations, Courier V.32 uses the
industry-standard "AT" auto-dialing command set for compatibility with
all micro-computer data communications software.
The Courier V.32 fully conforms to CCITT's V.32 data-signalling
specifications. It simultaneously operates high-speed "send" and
"receive" frequencies using trellis-coded modulation and
echo-cancelling. These advanced technologies keep Courier V.32 online
and error-free under even the harshest telephone network conditions.
U.S. Robotics offers the Courier V.32 modem in external and
rackmounted models. The rackmounted version is designed for use in U.S.
Robotics Rackmount 30 Modular Modem System, which includes a
19-inch-wide chassis housing up to 15 modem and interface boards along
with two 140-watt power supplies.
The Courier V.32 carries USRUs standard two-year parts and service
warranty, extendable for $20.50 per year.
DESCRIPTION
Transmits/Receives at 9600, 7200, 4800, 2400, 1200 and 300 bps.
Data Compression MNP Service Class 5 compression, available at all
transmission speeds above 300 bps, increases effective throughput by up
to 80 percent. Maximum effective throughput is 17,400 bps.
Error Checking MNP Service Classes 1 through 4 at all speeds above 300
bps.
Hardware/software flow control allows fixed RS-232 rates up to 19.2
Kbps.
Asynchronous or synchronous transmission on dial-up or leased lines.
Synchronous available at all speeds >300 bps.
Auto-dial, auto-answer "AT" command auto-dialing in asynchronous mode.
Synchronous auto-dialing of phone number stored in RAM.
Ease of Use Features:
Automatic transmission-speed adjustment, in V.32 mode, falls back from
9600 to 7200 or 4800 bps, guaranteeing highest possible speed under a
wide range of conditions.
Automatically adapts to the highest data rate supported by the remote
modem.
Speaker with volume control for audio call-progress monitoring.
On-screen and bottom label help summaries.
RS232-C pins 2 and 3 (Send and Receive data) switch-reversible for easy
use with terminal, computer or printer.
Technical Specs:
Twelve LED front panel indicators.
Local analog and digital loopback, and remote digital loopback self-testing.
U.S./CCITT answer sequences.
Includes power adapter and RJ11C phone cord.
Two phone jacks for voice/data communications.
Size: 8.3" wide, 12.65" deep, 1.57" tall.
Power consumption: 10 watts
Power adapter UL listed, CSA approved. Supply voltage:
115 VAC, 60 Hz, 16 VAC output.
Receive sensitivity -43 dBm. Transmit level -9 dBm.
SPECIAL FEATURES
High-Speed Operation V.32 capability provides 9600, 7200 and 4800
bps data transmission.
Trellis-coded modulation delivers maximum immunity to a variety of
line conditions and impairments.
Symmetrical full-duplex operation yields fastest possible round
trip response time.
Courier V.32 is well suited to all data communications
applications, including high-speed file transfer, interactive two-way
communications, micro-to-mainframe synchronous communications,
synchronous LAN bridging, dedicated leased lines and leased line dial
backup.
Nonvolatile Random Access Memory (NRAM) Easily programmable
nonvolatile memory stores user-defined default configuration.
Phone Number Storage Creates auto dial directory of four frequently
called phone numbers.
Automatic Dialing "AT" command dialing and automatic dialing of
stored phone number at power on, reset command or when terminal turns on
DTR.
Synchronous Auto-Dialing Automatically dials stored phone number,
then establishes synchronous data link.
Diagnostics = Local and remote loopback testing provides DTE,
modem and phone line diagnostic capabilities.
COMPATIBILITY
CCITT V.32-compatible at 9600, 7200 and 4800 bps.
CCITT V.22 bis-compatible at 2400 bps.
CCITT V.22- and Bell 212A-compatible at 1200 bps.
CCITT V.21- and Bell 103-compatible at 300 bps.
Uses "AT" auto-dial command set in asynchronous mode.
CCITT V.42-compatible (MNP Class 1-4 error control).
MNP Class 5 data compression.
FCC, DOC certified.