Uni-Com USRobotics Courier Lite 5686G-PRO User manual

USR®Courier® Lite Business Modem
User Guide
USR5686G-PRO
R24.0802.00
Rev 1.0 06/2018

5686G-PRO User Guide
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Copyright © 2018 USR, a Division of UNICOM Global
Contents
INTRODUCTION ................................................................................................................3
INSTALLATION ..................................................................................................................4
Modem Installation.........................................................................................................4
Modem Upgrade.............................................................................................................7
CONFIGURATION.............................................................................................................11
Configuring DIP Switches .............................................................................................. 11
Accessing and Configuring the Modem Remotely .............................................................. 12
Dial Security................................................................................................................ 18
Testing the Connection ................................................................................................. 28
REFERENCE .................................................................................................................... 32
S-Registers ................................................................................................................. 32
Alphabetic Command Summary ..................................................................................... 46
Flow Control Template ..................................................................................................66
Result Code Meanings and Sets ..................................................................................... 71
Technical Information ................................................................................................... 75
ASCII Chart................................................................................................................. 80
Fax Information for Programmers .................................................................................. 81
Viewing LEDs............................................................................................................... 84
WARRANTY ..................................................................................................................... 85
REGULATORY .................................................................................................................. 89
COPYRIGHT .................................................................................................................... 94

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Copyright © 2018 USR, a Division of UNICOM Global
INTRODUCTION
Thank you for purchasing the USRobotics Courier Lite 56K Business Modem!
The USR® Courier® Lite 56K Business Modem with V.Everything® technology offers the perfect
solution for both Out-of-Band Management of networks or Point-of-Sale applications. Many modems
claim reliability, but few match the real-world performance of Courier modems. Even fewer offer the
multitude of advanced business features found on this modem including Carrier Loss Redial and
Dialback Security. Remote access capabilities let you remotely configure or troubleshoot modems in
Remote Management and other M2M (Machine-to-Machine) applications. When failure is not an
option, you need the world-class capabilities that only come from the top of the USR product line.
Product Features
V. Everything Technology
The modem supports all key ITU analog communications protocols and many proprietary ones to
provide you with ultimate compatibility.
Dial and Dialback Security
The modem includes a robust mechanism for providing dial and dialback security for your network.
See the “Dial Security” part of the Configuration section of this guide.
Remote Manageability
The modem can be remotely configured and monitored for the convenience of your local office. See
the “Accessing and Configuring Remotely” part of the Configuration section of this guide.

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Copyright © 2018 USR, a Division of UNICOM Global
INSTALLATION
Modem Installation
Physical Features
Top
1. Power Switch
2. LEDs
Back
3. Line to wall jack
4. Line to telephone
5. DIP switches
6. Serial port
7. Power input
Side
8. Volume dial

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Copyright © 2018 USR, a Division of UNICOM Global
Step One: Prepare for Installation
1. Uninstall all other modems*that are installed on your computer. For instructions, refer to the
documentation for your previous modem or your computer’s operating system.
2. Unplug all data, telephone, and power cords connected to your previous modem(s).
3. Shut down your computer and power it off.
4. Locate the serial port on the back of your computer. To find the serial port, look for a port
labeled COM, MODEM, RS-232, , or SERIAL. Do not use the AUX, GAME, LPT, or PARALLEL
ports.
Note: If your computer does not have a serial port, use a USB -to-serial cable that is compatible with
your computer’s operating system.
*If the previous modem was a USRobotics Courier 56K Business Modem, do not uninstall it. The
Courier Lite 56K Business Modem uses the same driver as the Courier 56K Business Modem.
Step Two: Connect the Modem to the Computer
1. Connect one end of the serial modem cable to modem and the other end to your computer’s
serial port.

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Copyright © 2018 USR, a Division of UNICOM Global
Step Three: Connect the Modem to an Analog Telephone Line
Caution: The Courier Lite 56K Business Modem must be plugged in to an analog phone line only.
Plugging your Courier Lite 56K Business Modem in to a digital phone line may damage the modem.
Most office phones are wired through digital lines. Be sure you know what type of line you have.
1. Plug one end of the telephone cord into the jack on the modem.
2. Plug the other end into an analog telephone wall jack.
3. To connect a telephone through the modem, plug the telephone’s cord into the
modem’s jack.
Step Four: Power Up the Modem
1. Plug the power adapter into the power jack on the modem and the other end into an
electrical outlet.
2. Turn on the modem by switching the power switch on the top of the modem to ON.
The CS LED should light.

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Copyright © 2018 USR, a Division of UNICOM Global
If the CS LED does not light or if other LEDs light, make sure that only DIP switches (located
on the back of the modem) 3, 5, and 8are in the ON (down) position.
3. Turn on your computer.
Step Five: Install the Modem Drivers
Windows operating systems should automatically install the modem driver. If the driver does not
install automatically, or for other operating systems, visit http://www.usr.com/support.
Uninstallation
Consult your computer’s operating system documentation for uninstallation procedures.
Modem Upgrade
Upgrading your Modem
This section contains information about:
Checking your modem’s software version
Getting new operating software
Getting the Flash Loader application
Use the Flash Loader application to send the new software to your modem
If the Flash Loader doesn’t find your modem
If your modem doesn’t respond after flashing
Remote flash

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Copyright © 2018 USR, a Division of UNICOM Global
Checking Your Modem’s Software Version
Issuing the ATI7 command produces the following information to appear on your terminal screen.
ATI7
USRobotics Courier Lite Configuration Profile...
Product type
US/Canada External
Product ID
00568607
Options
V32bis,V.80,V.34+,V.90,V.92
Fax Options
Class 1,Class 2.0
Clock Freq
92.0Mhz
Flash ROM
256k
Ram
96k
Supervisor date
May 2 2018
DSP date
May 2 2018
Supervisor rev
V1.0.0
DSP rev
0F
DAA rev
3
Serial Number
xxxxxxxxxxxx
OK
Check the Supervisor and Digital Signal Processor (DSP) dates found in the screen display. These
dates will determine which version of the software your modem is using.
Getting New Operating Software
To get the newest version of the Courier Lite 56K Business Modem’s operating software, go to the
customer support web site at http://www.usr.com/support.
Getting the Flash Loader Application
To flash new firmware into the Courier Lite 56K Business Modem, you must run the USRobotics Flash
Loader application on your computer.
To get the newest version of the Flash Loader application, go to the customer support web site
at http://www.usr.com/support.

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Copyright © 2018 USR, a Division of UNICOM Global
Use the Flash Loader Application to Send the New Software to Your Modem
Run the Flash Loader application.
Navigate to the new software file.
After you choose the software file that you want to send, the Flash Loader will search your
computer’s COM ports for the Courier Lite 56K Business Modem.
Note: There must be no other active modems on any of your computer’s COM ports.

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Copyright © 2018 USR, a Division of UNICOM Global
Once the Flash Loader selects the COM port, it will send the file to the modem.
If the Flash Loader Doesn’t Find Your Modem
If the Flash Loader doesn’t find your modem during the flash process:
Check that your computer has no other active modems on any of its COM ports. Don’t forget to
disable any internal modems in your computer.
Manually verify that the Courier Lite 56K Business Modem is active by using a serial terminal
application. (e.g. PuTTY, Tera Term, RealTerm, etc.) Select the COM port of the Courier Lite 56K
Business Modem. Type AT and Enter. The modem should respond OK.
If the modem doesn’t respond OK:
A. Check that you’re using the correct COM port that your computer has assigned to the Courier
Lite 56K Business Modem.
B. Check that the Courier Lite 56K Business Modem power is ON.
C. Check that the serial cable connecting the computer’s serial port to the Courier Lite 56K
Business Modem is wired with all the RS232 control signals. (i.e. DTR, DSR, CTS, RTS)
Contact USR Technical Support.