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17 Oct 2000

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3COM & Remote Access

Windows 95 Dial-Up Networking with ISDN

Firmware Upgrade

Make Sure You Have The latest Impact Driver for Windows 95:
Firmware : Minimum Version 2.00b, Recommended Version 2.02

  1. Download file: impct202.exe into a temporary directory.
  2. After download, double-click impct202.exe.
  3. View the upgrade.txt & readme.txt before installation
  4. After the firmware upgrade is complete, place the impact.inf file into the c:\windows\inf directory.

Driver Installation

  • Click Start | Settings | Control Panel
  • Double-click Modems
  • Modem Properties: General
  • Click Add
  • Install New Modem: Check Don't detect my modem; I will select from a list
  • Click Next.
  • By placing the impact.inf file into the c:\windows\inf directory, Windows 95 will rebuild its Modem Driver Database & will now include the 3COM ISDN devices.
  • 3COM Driver (v2.02)
  • Manufacturers: Select 3COM.
  • Models: Select 3COM Impact (Digital Data).
  • Click Next.
  • Select correct Communications Port (Com #)
  • Click Next | Finish

Connection Configuration

  • Modem Properties: General
  • Highlight 3COM Impact (Digital Data)
  • Select Properties
  • 3COM Impact Properties: General
  • Set Maximum Speed: 115,200
  • 3COM Impact Properties: Connection
  • Data Bits: 8
  • Parity: None
  • Stop Bits: 1
  • Click Advanced.
  • Use Flow Control should be checked.
  • Hardware (RTS/CTS) should be checked [One B Channel]
  • Extra Settings: &F S61=2 S71=1 S80=0
  • Extra Settings: &F S61=2 S71=1 S80=1 [Two B Channels - MultiLink PPP]
  • Click OK.
  • Click OK | Close

Remote S Registers

  • S61=2 Outgoing Call Type: ISDN
  • S71=1 B Channel Protocol: Async-Sync PPP conversion
  • S80=1 MultiLink PPP: Enabled
  • S80=0 MultiLink PPP: Disabled


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