Black Box USR3453C Manuel utilisateur

The workhorse business modem

that’s always compatible.

The workhorse business modem

that’s always compatible.

U.S. Robotics Courier 56K Business Modem with V.92

FREE 24-hour Tech Support: 724-746-5500

blackbox.com

2 of 2

8/29/2007

#17367

724-746-5500 blackbox.com

FEATURES

• Supports a wide range of V. standards.

• Flash-ROM upgradable.

• Call detection switches between data

and fax calls automatically.

OVERVIEW

With the U.S. Robotics Courier 56K Business Modem with

V.92, you get unsurpassed reliability and straightforward

simplicity. It’s easy to set up, and once you do, it’s so reliable

you might forget it’s even there!

The modem supports data transmission up to 56 kbps*.

It has typical dialup connection and 2-wire leased-line

capabilities. The RS-232 serial interface can be configured

as async or sync, depending on your application. And, it’s

RoHS compliant.

Universal connections enable the modem to support a

wide range of V. standards. It connects automatically with

other modems at their highest speeds. And along with all the

standard protocols, you also get Adaptive Speed Leveling™

(ASL™) when you connect to another modem that has ASL.

ASL enables the modem to adjust to the speed of incoming

and outgoing channels, up or down, to match changing line

conditions.

The courier also has Call Detection to sort out fax and data

calls. Call Detection looks for a CNG tone, a calling tone that

indicates an incoming fax. If the modem detects a CNG tone

on an incoming call, it assumes that call is a fax; otherwise,

it assumes the call is a standard data call.

TECH SPECS

Fax Standards — V.17, V.29, V.27 ter, Group III

Line Type — Dialup, 2-wire leased line

Modem Standards — ITU: V.92, V.90, V.42 bis, V.34+, V.34, V.FC, V.32 terbo,

V.32 bis, V.32, V.25 bis, V.23, V.22 bis, V.22, V.21;

Bell: 212A, 103

Operation — Asynchronous or synchronous

Speed (Maximum) —

Download: 56 kbps;

Upload: 33.6 kbps;

Fax: 14.4 kbps

User Controls — (1) Voice/Data button

Interface — RS-232

Connectors — (1) DB25 female, (2) RJ-11

Indicators — (12) LEDs: HS, AA, CD, OH, RD, SD, TR, MR, RS, CS, SYN,

ARQ/FAX

Power — 115 VAC, 60 Hz

Size — 1.3"H x 6.4"W x 10.3"D (3.3 x 16.3 x 26.2 cm)

Item Code

U.S. Robotics Courier 56K Business Modem

with V.92 USR3453C

You might also need…

RS-232 Cable, 25-Conductor,

10-ft. (3-m), Male/Female ECM25C-0010-MF

AT®Modem Cable, Premium, 9-Conductor,

DB9 Female/DB25 Male, 6-ft. (1.8-m) EVMBMC-0006

Recognize any of these situations?

• You wait more than 30 minutes to get through

to a vendor’s tech support.

• The so-called “tech” can’t help you or gives you

the wrong answer.

• You don’t have a purchase order number and the

tech refuses to help you.

• It’s 9 p. m. and you need help, but your vendor’s

tech support line is closed.

According to a survey by Data Communications

magazine, 90% of network managers surveyed say

that getting the technical support they need is extremely

important when choosing a vendor. But even though

network managers pay anywhere from 10 to 20% of their

overall purchase price for a basic service and support

contract, the technical support and service they receive falls

far short of their expectations—and certainly isn’t worth

what they paid.

At Black Box, we guarantee the best value and the

best support. You can even consult our Technical Support

Experts before you buy if you need help selecting just

the right component for your application.

Don’t waste time and money—call Black Box today.

Why Buy From Black Box? Exceptional Value.

Exceptional Tech Support. Period.

✦Modem

✦RJ-11 cable

✦

CD-ROM with user’s manual in PDF format

WHAT‘S INCLUDED

*NOTE: Although this faxmodem is capable of 56-kbps

downloads, FCC regulations limit download speeds to 53 kbps.

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