Black Box MD1000A Manual De Usuario
BLACK BOX
®
2 of 3
06/02/2010
#21542
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Provides sync, async, and fax capabilities
for links between a local computer and
a remote computer, fax, or DTE.
a remote computer, fax, or DTE.
»
Advanced error control and data compression
ensure data integrity and increase data
throughput.
throughput.
»
Switches to a dialup line if the leased-line
connection fails, then automatically returns
to the leased line when it’s back up.
to the leased line when it’s back up.
»
High-speed fax enables communica tion
with any ITU Group III fax device.
»
Configure via the front panel or AT
commands.
»
Password security keeps your data safe.
»
Dynamically adjusts data rate to conform
to line conditions.
Features
The
Modem 3600
is a high-performance V.34+/V.42 bis modem
and fax in one unit. It offers serial throughput rates up to 230.4 kbps
and works anywhere your telephone can reach, transmitting over
standard dialup lines or private leased lines.
and works anywhere your telephone can reach, transmitting over
standard dialup lines or private leased lines.
Perfect for less-than-ideal transmission lines, the
Modem 3600
features echo canceling, auto-adaptive line equalizing, and trellis
coding techniques. Automatic rate adaptation enables the modem
to automatically decrease the DCE rate when the allowable bit error
rate is exceeded (and increase it when line conditions improve).
coding techniques. Automatic rate adaptation enables the modem
to automatically decrease the DCE rate when the allowable bit error
rate is exceeded (and increase it when line conditions improve).
It also has adaptive baud-rate selection, transmit pre-emphasis,
automatic transmit-power selection, con stellation shaping, and
non-linear encoding and pre-coding.
non-linear encoding and pre-coding.
All models feature a front-panel LCD for easy option selection
and modem configuration. Through this password-protected LCD
interface, you can get information about
interface, you can get information about
Modem 3600
operation
and status, and you can control all major modem options without
using an external terminal or a phone line connection.
using an external terminal or a phone line connection.
What’s more, a remote-configuration feature enables you to use
the LCD to configure a remote modem from the local side. Plus, it
comes with built-in standard diagnostics for testing phone line quality
and modems at each end.
comes with built-in standard diagnostics for testing phone line quality
and modems at each end.
In addition to the LCD interface, you can configure your Modem
3600 via standard AT software commands. Or, choose one of nine
factory-configured options to simplify setup for most standard
applications. The modem is also flash-memory upgradable.
factory-configured options to simplify setup for most standard
applications. The modem is also flash-memory upgradable.
OVERVIEW
The Modem 3600 has six LED indicators:
• TR (Terminal Ready) lights when the DTE asserts
Data Terminal Ready. This signal is input on Pin 20.
• CS (Clear to Send) lights when the modem is ready to
send data to the DTE. This signal is output on Pin 5.
• RS (Request to Send) lights when the DTE is ready to send
data to the modem. This signal is input on Pin 4.
• CD (Carrier Detect) lights when the received audio carrier
signal is detected, or, if error control is enabled, when error-
control protocol negotiation is complete. This signal is output
on Pin 8.
control protocol negotiation is complete. This signal is output
on Pin 8.
• RD (Received Data) lights for a data space condition at the
receive data output, indicating receive data output activity.
This signal is output on Pin 3.
This signal is output on Pin 3.
• TD (Transmit Data) lights for a data space condition at the
transmit data input, indicating transmit data input activity.
This signal is input on Pin 2.
This signal is input on Pin 2.
The modem has seven main LCD menus: Modem Status, Dial
Stored Number, Display Status, Select Test, Modify Configura tion,
Change Phone Numbers, and Front Panel Features.
Change Phone Numbers, and Front Panel Features.
technically speaking
When functioning as a fax, the
Modem 3600
is fully ITU Group
III compatible. It conforms to the EIA-578 standard interface between
a fax modem and a computer with fax software. When used with an
EIA Class 1 software package, the modem can send and receive faxes
at up to 14.4 kbps. And built-in error correction ensures that your fax
will arrive at its destination without transmission errors.
a fax modem and a computer with fax software. When used with an
EIA Class 1 software package, the modem can send and receive faxes
at up to 14.4 kbps. And built-in error correction ensures that your fax
will arrive at its destination without transmission errors.
The modem operates over dialup and 2- or 4-wire leased lines. It
also features automatic dial-backup handling of both sync and async
data. The dial backup feature prompts the modem to switch to a dial
backup mode if the leased line is unable to support communications.
data. The dial backup feature prompts the modem to switch to a dial
backup mode if the leased line is unable to support communications.
Multiple levels of security include password, password with
callback, and user-programmed password. The modems can
store up to 50 passwords and 50 phone numbers.
store up to 50 passwords and 50 phone numbers.
The standalone modem, suitable for both desktop and shelftop
use, is available in both AC- and DC-powered versions. Order the
AC-powered modem alone (MD1000A) or packaged with two serial
cables (MD1000A-CABPAK-R2), which you can use to connect the
modem to either DB25 or DB9 male RS-232 devices. We also offer
a standalone DC-powered version (MD1000A-DC), as well as
rackmount card (MD1000C) that draws AC power from and plugs
into the backplane of the optional Modem Rack II (RM421A).
AC-powered modem alone (MD1000A) or packaged with two serial
cables (MD1000A-CABPAK-R2), which you can use to connect the
modem to either DB25 or DB9 male RS-232 devices. We also offer
a standalone DC-powered version (MD1000A-DC), as well as
rackmount card (MD1000C) that draws AC power from and plugs
into the backplane of the optional Modem Rack II (RM421A).
If you need communications software for your modem, add
PROCOMM PLUS
®
32 Quarterdeck v.4.8, which maximizes the 32-bit
capabilities of Windows
®
and helps you avoid the hassles of setting
up an Internet connection.