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Congratulations! You have just purchased a U.S. Robotics Courier
I-modem with x2. x2 is a groundbreaking new technology that allows your
I-modem to:
Use Server Mode x2 and ISDN to send data to x2 client modems at
speeds up to 56 kbps.
Use Symmetric Mode x2 to connect at speeds of 56 or 64 kbps.
Use ISDN to connect at speeds up to 128 kbps.
Information about x2
To obtain the latest information about x2, visit the U.S. Robotics Web Site
visit http://www.usr.com/x2
Courier™ I-modem™
Command Reference Addendum
External and Internal Version
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Table of Contents
Related Manuals for US Robotics x2 Courier I-modem
Summary of Contents for US Robotics x2 Courier I-modem
- Page 1 Courier™ I-modem™ Command Reference Addendum External and Internal Version Congratulations! You have just purchased a U.S. Robotics Courier I-modem with x2. x2 is a groundbreaking new technology that allows your I-modem to: Use Server Mode x2 and ISDN to send data to x2 client modems at speeds up to 56 kbps.
- Page 2 The material contained in this document is for information purposes only and is subject to change without notice. No part of this document may be reproduced, transmitted, transcribed, or stored in a retrieval system in any form or by any means, mechanical, magnetic, electronic, optical, chemical or otherwise, without the written permission of U.S.
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Page 3: Table Of Contents
Contents Contacting U.S. Robotics ................. 1 Enhanced x2 Features ..................2 Other New I-modem Features ................2 How to Tell if x2 is Enabled in Your I-modem ..........3 How x2 Works ....................4 The Shift from Analog to Digital Circuits ............ 4 Client and Server Modems ................ - Page 4 BRI U Model: FCC Part 68 Compliance Statement ........23 BRI S/T Model: FCC Part 68 Compliance Statement ......... 23...
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Page 5: Contacting U.s. Robotics
Contacting U.S. Robotics We’ve made every effort to provide you with useful, accurate information. If you have any comments or questions, please let us know. To do this Contact Contact U.S. Robotics Technical Support 800.550.7800 Visit the x2 web site http://www.usr.com/x2 Courier I -modem 1... -
Page 6: Enhanced X2 Features
Enhanced x2 Features Your Courier I-modem with x2 has new result codes and the following new features: To do this Use this command Detemine if x2 is enabled in your I-modem ATI7 Disable or enable server and symmertic x2 ATS58 Limit the upper speed limit of an x2 connection AT&N Limit the lower speed limit of an x2 connection... -
Page 7: How To Tell If X2 Is Enabled In Your I-Modem
How to Tell if x2 is Enabled in Your I-modem If you aren’t sure whether x2 is enabled in your Courier I-modem, use the ATI7 command to display product configuration information. If x2 is enabled on your Courier I-modem, the following information displays: USRobotics Courier I-modem Configuration Profile... -
Page 8: How X2 Works
How x2 Works U.S. Robotics' x2 technology enables analog modems to receive data at up to 56 kbps over the standard analog, public switched telephone network (PSTN). x2 overcomes the limitations imposed on standard, analog modems by exploiting the digital connections that most Internet and online service providers have at their end to connect to the PSTN. -
Page 9: Making X2 Work
Client Modems x2 client modems can receive data at speeds up to 56 kbps and send data at V.34 speeds. The following products are examples of U.S. Robotics Client Modems: • Courier™ V.Everything™ with x2 • Sportster® with x2 • Analog Modem Pools or NETServer with x2 Server Modems The digital x2 modems that client x2 modems connect to are called server x2... -
Page 10: Controlling X2
Controlling x2 The Courier I-modem allows you to communicate using x2 Server Mode and x2 Symmetric Mode. x2 Server Mode Using x2 Server Mode, you can accept calls from x2 client modems. Using this mode, the x2 client modem that connects to your I-modem can receive data at speeds up to 56 kbps and send data at V.34 speeds. -
Page 11: Controlling Link Speeds With &N And &U
Controlling Link Speeds with &N and &U You can use the &N and &U commands to control link speeds. Couriers without x2 can still use the &N and &U commands, but can only control link speeds up to 33.6 kbps. Limiting Link Speeds You can use the &N and &U commands to limit the link speeds of your Courier... -
Page 12: Limiting The Lowest Possible Connect Speed
Limiting the Lowest Possible Connect Speed The &U command allows you to limit the lowest possible connect speed. If a remote modem connects to your Courier I-modem with x2 at a speed lower than &U, your Courier I-modem with x2 will not allow it to connect. To limit the Use this command Lowest possible connect speed to 48000... -
Page 13: N And &U Command Values
&N and &U Command Values Use the following table for a complete list of &N and &U link speeds and their associated indexes: Link Index Link Index Link Index Speed Speed Speed Highest 21600 45333 24000 46666 1200 26400 48000 2400 28800 49333... -
Page 14: Data Over Voice
Data Over Voice Data Over Voice (DOV) is a feature that allows the I-modem to make more cost effective 3.1 kHz analog calls while allowing the I-modem to send digital data at 56 kbps. DOV is becoming widely used due to the fact that Regional Bell Operating Companies charge less for analog calls than digital calls. -
Page 15: Host Mode Multilink Ppp
Host Mode Multilink PPP Your Courier I-modem now supports Host Mode Multilink PPP. Host Mode Multilink PPP allows you to set the I-modem to accept Multilink PPP calls. Determining TurboPPP Settings To do this Use this command Obtain an overview of TurboPPP settings ATI16 Setting Multilink PPP Host and Originate Mode Use the following *P settings to control Multilink PPP:... -
Page 16: Making Calls With Multilink Ppp
Making Calls With Multilink PPP You can only make a Multilink PPP call using PPP software, such as Windows 95 Dial-Up Networking, FTP Explorer, NetManage Chameleon, or Trumpet Winsock. Terminal programs do not support Multilink PPP. Note: If you are using Windows 95 Dial-Up Networking, uncheck the “Use Country and Area Code”... - Page 17 Connection With Multilink PPP Courier I -modem 13...
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Page 18: Dynamic Data Bandwidth Allocation
Dynamic Data Bandwidth Allocation Dynamic Bandwidth Allocation is a cost savings feature that helps you save money by only using the second B-channel when it is need for data transfers, and then dropping the second B-channel when it is not needed. Dynamic Bandwidth Allocation works with TurboPPP to add or drop the second B- channel automatically. -
Page 19: Setting When The I-Modem Brings Up The Second Link
Setting When the I-modem Brings Up the Second Link Use the following *D3 setting to determine when the I-modem should bring up a second link: To do this Use this setting Example Determine when the second link *D3=n, where n equals *D3=60 should be brought up, based on the 50 -100%... -
Page 20: Using Compression In Turboppp Mode
Using Compression in TurboPPP mode Courier I-modem supports the following three types of compression in TurboPPP mode. Pass-through Compression Pass-through compression allows the terminal applications running on each PC on both ends of the connection to perform compression. Using this form of compression, the Courier I-modem does not perform compression. -
Page 21: Period Dial Modifier
Period Dial Modifier The period (‘.’) dial modifier is used to send DTMF tones after the telephone number is dialed. The period dial modifier can be used with the comma (',') dial modifier to insert delay between the numbers as appropriate for the application. -
Page 22: Saving Money With Analog Calls
Saving Money With Analog Calls By default, the I-modem anticipates the rare occasion that telephone company equipment incorrectly allows a digital connection when you call a modem or fax machine. In these situations, although the I-modem proceeds with the call as a standard analog (fax or modem) call, the telephone company bills the call as digital. -
Page 23: Troubleshooting X2
Troubleshooting x2 If x2 client modems cannot connect at x2 speeds to x2 server I-modems, use the chart below to determine problems at the server end and how to fix them: Step This may be the problem Do this x2 may not be enabled on See the section “How to Tell if x2 is your Courier. -
Page 24: New X2 Result Codes
New x2 Result Codes Use the following table for a list of all result codes, including new x2 result codes: Numeric Alphanumeric CONNECT 33333 CONNECT 33333/ARQ CONNECT 33333/x2 CONNECT 33333/ARQ/x2 CONNECT 37333 CONNECT 37333/ARQ CONNECT 37333/x2 CONNECT 37333/ARQ/x2 CONNECT 41333 CONNECT 41333/ARQ CONNECT 41333/x2 CONNECT 41333/ARQ/x2... - Page 25 New x2 Result Codes (Continued) Numeric Alphanumeric CONNECT 46666/x2 CONNECT 46666/ARQ/x2 CONNECT 48000 CONNECT 48000/ARQ CONNECT 48000/x2 CONNECT 48000/ARQ/x2 CONNECT 49333 CONNECT 49333/ARQ CONNECT 49333/x2 CONNECT 49333/ARQ/x2 CONNECT 50666 CONNECT 50666/ARQ CONNECT 50666/x2 CONNECT 50666/ARQ/x2 CONNECT 52000 CONNECT 52000/ARQ CONNECT 52000/x2 CONNECT 52000/ARQ/x2 CONNECT 53333 CONNECT 53333/ARQ...
- Page 26 New x2 Result Codes (Continued) Numeric Alphanumeric CONNECT 56000/ARQ CONNECT 56000/x2 CONNECT 56000/ARQ/x2 CONNECT 57333 CONNECT 57333/ARQ CONNECT 57333/x2 CONNECT 57333/ARQ/x2 CONNECT 64000 CONNECT 64000/ARQ CONNECT 64000/x2 CONNECT 64000/ARQ/x2 There is a complete list of result codes in your Courier I-modem Command Reference .
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Page 27: Fcc Information
FCC Information BRI U Model: FCC Part 68 Compliance Statement This equipment complies with Part 68 of the FCC rules concerning: FCC Registration Number: CJE USA-30998-DD-N Facility Interface Code: 02IS5 Service Order Code: 6.0Y USOC Jack: RJ49C REN: Not applicable BRI S/T Model: FCC Part 68 Compliance Statement This equipment complies with Part 68 of the FCC rules concerning: FCC Registration Number: CJE USA-30999-DD-N... - Page 28 This PDF file is based on part number 1.024.990 x2 Addendum...
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