 | Article ID: 1594 |
| Q&A | |
Initialization Strings for the Express XRT and Express 3000 in Microsoft Windows® 95, 98, NT, 2000, ME and XP Operating Systems
Q:
Initialization Strings for the Express XRT and Express 3000 in Microsoft Windows® 95, 98, NT, 2000, ME and XP Operating Systems
A:
Introduction
This Technical Support Note details adding support for ADTRAN ISDN products to Microsoft Windows Operating Systems for high-speed data communication. To use an ADTRAN product with Microsoft Windows requires the installation of the appropriate Modem Information File (.inf file.) This file defines the characteristics of the ADTRAN ISDN product providing Windows the information to initialize and use it.
Initialization Strings
For maximum system flexibility, much of the Express setup is built into the initialization string sent by Windows. The Express 3000 can be set to perform many different combinations of call types and protocols.
| Protocol and Purpose | Initialization String |
|---|---|
| Multilink PPP (MP) Use these strings when using Dial-Up Networking 1.2 or below. This protocol is commonly used to dial into an Internet service provider (ISP) at 128 kbps using both B channels of your ISDN line. This protocol also allows for bandwidth on demand. If you have an incoming or outgoing call on POTs port one, the unit will automatically drop to 64 kbps when the POTS line goes off hook and resume when the POTS goes on hook. Several different strings are listed because of the different ways your Internet Service Provider may be set up. You need to try each of these strings until your connection works. | ATS54=12S27=1S53=3S118=32S13=1ATS54=12S27=1S53=3S118=40S13=1 |
| Multilink PPP (MP) Use these strings when using Windows XP, Windows 2000, Windows ME, Windows NT, Windows 98, or Windows 95 using Dial-Up Networking 1.3 or above. This protocol is commonly used to dial into an Internet service provider (ISP) at 128 kbps using both B channels of your ISDN line. This protocol also allows for bandwidth on demand. If you have an incoming or outgoing call on POTS port one, the unit will automatically drop to 64 kbps when the POTS line goes off hook and resume when the POTS goes on hook. Several different strings are listed because of the different ways your Internet Service Provider may be set up. You need to try each of these strings until your connection works. | ATS54=12S27=1S53=3S118=8S129=0S148=0S13=1ATS54=12S27=1S53=3S118=8S129=1S148=0S13=1 |
| Single link PPP is commonly used to dial into an Internet service provider (ISP) at 64 kbps using one B channel of your ISDN line. | ATS54=12S27=0S53=3S13=1 |
| V.120 is for some connections to the Internet using 1 channel only. This protocol is usually used for remote access applications, such as when an employee is working from home. | ATS54=6S53=3S13=1 |
| BONDING mode 1 is for 2 channel connections between two ADTRAN devices. It is usually used for software applications like pcAnywhere or EMED's Multiview program. This is an asynchronous call type that combines both B channels to form one logical 115.4 kbps data connection. This is also typically used for work at home applications. Unlike MP, BONDING mode 1 does not support bandwidth on demand. | ATS54=2S53=3S13=1 |
| Data over Voice is for 1 channel connections to the Internet. Two different strings are listed because of the different ways your Internet Service Provider may be set up. You need to try both of these strings to see which one works for you. | ATS54=12S27=0S53=1S26=1S13=1ATS54=12S27=0S53=0S26=1S13=1 |
| Data over Voice is for 2 channel connections to the Internet. Two different strings are listed because of the different ways your Internet Service Provider may be set up. You need to try both of these strings to see which one works for you. | ATS54=12S27=1S53=1S26=1S13=1ATS54=12S27=1S53=0S26=1S13=1 |
Note: To obtain 56K channel connections, you need to change the S53=3 command to S53=2.
Note: Some service providers require ATS54=12S27=1S53=0S26=1 to provide Data over Voice connections.
Note: Users trying to connect to CompuServe should try the following string: ATS54=6S53=2. You may also need the following connection properties: 7 Data Bits, Even Parity, and 1 Stop Bit.
Note: Users of Windows 95 with Dial Up Networking 1.2 or below can upgrade their software via Microsoft's Web site.
Note: The parts of the initialization string can be found in the AT Commands and S Registers section of the Express 3000 User Manual.
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