Black Box 32144 User manual

1
Black Box Corporation • 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 72 -7 6-5500 • www.blackbox.com • e-mail: [email protected]
© 200 . All rights reserved.
Black Box Corporation.
10/8/200 #125
T
he Modem 321 provides
flexible, high-performance data
communications at 19.2 kbps for
sync traffic, 57.6 kbps for async
traffic, and 1 . kbps for fax traffic.
It’s easy to set up for both local
and remote devices. Plus it
features continuous DTE and
telephone line status reporting
and comprehensive diagnostics.
The Modem 321 operates
at 19.2 kbps full-duplex over
standard 2-wire Public Switched
Telephone Networks (PSTN)
dialup lines and over -wire
unconditioned leased lines.
Group III Class 1 and Class 2
fax machines are supported by
the Modem 321 as well as
multiple modulation standard
and speeds for fax transmission.
MODEM 32144
➝
➝
123ENT
123
Everything and the sync: Remote
configurability, maximum throughput,
and three levels of async security
(password, callback, or none).
MODEM32144
Ordering Information
ITEM CODE
Modem 321
AC-Powered (115-VAC, 60-Hz)
Standalone....................................................MD833A-R7
Rackmount Card ..........................................MD833C-R5
DC-Powered
2 -Volt Standalone ...................................MD833A-D2
8-Volt Standalone ...................................MD833A-D 8
For optimum performance and a 20% savings, order…
RS-232 Cable, 25-Conductor, 10-ft. (3-m)....ECM25C-0010
Integrated support for fax
traffic means the Modem 321
works with standard communi-
cations software packages to:
receive faxes on your DTE and
print them on a local printer, send
faxes directly from your DTE, and
send data at rates up to 57.6 kbps.
Automatic dial backup for
leased-line applications is also
supported by the Modem 321 .
The modem monitors the received
carrier level and line quality. If
performance drops below the
selected thresholds, the Modem
321 will automatically establish
a dial connection to the remote
modem. Automatic loop-back
enables the communications path
to be returned to the leased line
when conditions permit.
Alternate Callback Capability: V.23,
V.22, V.21
Compression: V. 2 bis, V.32 bis,
MNP®5
Configuration: Remote, AT
Command Set, or front-panel
from PC
Operation: Full-duplex over 2- or -
wire leased lines or dialup lines
Protocol: Sync and async
Speed (Maximum): Line: 19.2 kbps;
DTE: 57.6 kbps
Standards: ITU: V.terbo, V.33,
V.32 bis, V.32, V.29 Fast Train,
V.25 bis, V.25, V.22 bis, V.22,
V.17, V.13;
Bell: 212, 208, 103
Connectors: (1) DB25 F, (5) RJ- 5,
(1) 5-pin DIN
Specifications