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Serial port communication issues
3. Verify the serial port configuration for Telnet.
a. Click Serial port > Configuration.
b. Select the port number.
c. Expand Host mode configuration section.
d. Verify these settings:
4. From a Microsoft Windows CMD line, Unix/Linux prompt, or terminal emulator software, such
as PuTTY or HyperTerminal, telnet to the IP address and the listening port number of the Digi
CM unit. For example:
C:\> telnet 192.168.0.2 7001
5. You are prompted to log in.
User name: The default user name is root.
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Password: The unique, default password is printed on the device label. If a password is
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not printed on the label, the password is dbps. If neither password works, the
password may have been updated. Contact your system administrator.
Digi CM and Passport Troubleshooting Guide
Host mode: Console server
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Listening TCP port: an entry should be made
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Protocol: Telnet
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Serial loopback testing
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