D Rev; About The Passport Null Modem Driver; Locating The Null Modem Driver; If You Are Using A Dial-Up Modem Connection - Nortel Passport 4400 Using Manual

44

About the Passport Null Modem Driver

Install Tool provides a "null modem" driver to support a direct connection
between a workstation serial port and the Passport 4400 management port. This
modem driver is copied to your workstation when you install Install Tool.

Locating the Null Modem Driver

The Install Tool installation process copies the null modem driver to your
Install Tool installation directory. (The name of the modem driver is
PP4400Direct. The file name is PassportNullModem.inf.)

If You Are Using a Dial-Up Modem Connection

You do not need to install the null modem driver if your workstation is using a
modem (versus a serial cable) to connect to the Passport 4400. In this case, use the
driver provided with your modem.

Required Software Components

Your workstation needs the following software components to support an IP
connection between one of its serial ports and the Passport 4400 management
port:
Software Component:
TCP/IP

206906-D Rev 00 4.2

Note: If you uninstall the null modem driver and subsequently reinstall
Install Tool, the installation process does not reinstall the driver. Refer
to "Null Modem Driver Troubleshooting Tip" on page 36
description of and recommended solution to the problem.
Description:
TCP/IP protocol support is needed to support a serial
line IP connection between the workstation and the
Passport 4400.
for a