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Redboot procedures, Accessing redboot overview – Comtrol DeviceMaster LT User Manual

Page 99

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DeviceMaster LT User Guide: 2000586

Rev. B

RedBoot Procedures - 99

RedBoot Procedures

You can use this section as a reference if you want to perform tasks in RedBoot.

Accessing RedBoot Overview

on Page 99

Establishing a Serial Connection

on Page 100

Establishing a Telnet Connection

on Page 101

Determining the Network Settings

on Page 102

Configuring the Network Settings

on Page 102

Changing the Bootloader Timeout,

Page 103

Determining the Bootloader Version

on Page 103

Resetting the DeviceMaster LT

on Page 104

Uploading Firmware - Telnet Method (Linux)

on Page 104

Configuring Passwords

on Page 106

RedBoot Command Overview

on Page 107.

Optionally, you can install PortVision DX on a Windows system on the network
and perform all of these tasks. PortVision DX provides a Telnet/SSH session,
which is discussed in

Accessing RedBoot Commands in Telnet/SSH Sessions

(PortVision DX)

on Page 94.

Accessing RedBoot Overview

To access RedBoot, you can use one of the following methods:

A serial connection between Port 1 on the DeviceMaster LT and a COM port on
a PC (Page 100). If you plan on using the serial method, you will need a null
modem cable, a terminal program installed and configured on the PC, and a
Bootloader Timeout value in excess of 15 seconds. If the Bootloader Timeout
value has been reduced to 1 second, this procedure will NOT be possible.

Note: Use the serial connection method, if the DeviceMaster LT is not on the

same Ethernet network segment as the PC.

If you do not know the IP address of the DeviceMaster LT you must use a
serial connection to communicate with the DeviceMaster LT.

A telnet connection (Page 101), if the DeviceMaster LT is locally accessible by
Ethernet. A telnet connection requires that you know the IP address. In
addition, the IP address must also be valid for the network to which it is
attached.

For example: The network segment must be 192.168.250.x to telnet to the
DeviceMaster LT default IP address if you have not changed the IP address to
operate on your network.