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COMSPHERE 3800 Series Modems
1-2 November 1996 3810-A2-GB30-20
Features
The 3800 Series modems have a wide variety of
features.
• Dial-Line Modulations: V.32terbo (19,200 and
16,800 bps), CCITT V.32bis (14,400, 12,000, 9600,
7200, and 4800 bps), V.32 (9600 and 4800 bps),
V.22bis (2400 bps), V.22 (1200 bps), V.21
(300 bps), Bell 212A, (1200 bps), and Bell 103J
(300 bps).
• Two-wire/four-wire Leased-Line Modulations:
V.32terbo (19,200 and 16,800 bps), V.32bis
(14,400, 12,000, 9600, 7200, and 4800 bps),
V.32 (9600 and 4800 bps), V.22bis (2400 bps).
• Convenient migration to new or optional features
through software downloading.
• CCITT V
.42bis and MNP Class 5 data compression.
• Virtual error free data integrity with CCITT V.42
and MNP Level 4 error control.
•
Automatic and manual single call dial backup and
dial standby capabilities for 4-wire leased-line
applications (Model 3810 and Model 381
1).
• A unique Paradyne modem pooling feature that
preserves the answering modem’
s permanent
configuration, but allows multiple users to
temporarily adapt parameters for individual
requirements.
• Dial-line data rates from 300 bps–19,200 bps.
Leased-line rates from 2400 bps–19,200 bps.
• Asynchronous dial DTE data rates from
300 bps–115,200 bps.
• A diagnostic control panel (DCP) on the front bezel
that displays the connect status, data rate, type of
error control or compression, test results, alarm
status of DTE or VF parameters for both local and
remote modems.
• Storage of up to 10 telephone numbers to directory
locations.
• Compatibility with the industry de facto standard
A
T Command set.
•
Dialing via DCP, A
T commands, CCITT V.25bis
commands, or RS-366-A (Model 3811 only).
• Configuration of software options via the
AT Command set or DCP.
•
High-speed transmission using asynchronous,
synchronous, or UNIX devices over full- or
half-duplex dial networks or 2-wire/4-wire leased
lines.
• Complement of self-tests, local and remote
loopbacks including CCITT compatible V.54.
• Four factory-defined configurations and two
user-defined configuration areas.
• Availability in either the 2-wire/4-wire standalone
and carrier mount, or the 2-wire only standalone
models.
• Originate Security and three Answer Security
modes.
• Directory #1 Callback capability.
•
Dial Access Security which guards against
unwanted user access to the host DTE.
•
Hayes Autosync support.
Options
The 3800 Series modems also may have the following
optional features:
• Diagnostic, control, monitor
, and call statistic
capabilities through the COMSPHERE 6700 Series
NMS.
•
Class 2 Fax modulations: CCITT V
.17 (14,400,
12,000, 9600, 7200 bps), V.29 (9600, 7200 bps) and
V.27ter (4800, 2400 bps).
COMSPHERE 3800 Series
Models
The COMSPHERE 3800 Series modem is available in
several models.
• Model 3810, a 4-wire/2-wire standalone unit
capable of operation on 2-wire dial, or 4-wire
leased or 2-wire leased lines.
•
Model 381
1, a 4-wire/2-wire carrier-mounted
modem for installation into a COMSPHERE
3000 Series Carrier; it is capable of operation on
dial, or 4-wire leased or 2-wire leased lines.
• Model 3820, a 2-wire standalone unit capable of
operation on dial or 2-wire leased lines.