Zhone 7995 ユーザーガイド
5. Security
7990-A2-GB20-00
May 2002
5-5
Resetting the Unit's COM Port or Factory Defaults
The user interface can be rendered inaccessible with a faulty configuration. Two
methods can be used to restore it:
methods can be used to restore it:
Reset COM Port – Allows you to reset the configuration options related to
COM port usage. It also causes a device reset, where the TDM SHDSL
endpoint performs a Device Self-Test. No security-related configuration
options are changed.
COM port usage. It also causes a device reset, where the TDM SHDSL
endpoint performs a Device Self-Test. No security-related configuration
options are changed.
Reload Factory Defaults – Allows you to reload the Default Factory
Configuration, resetting all of the configuration and control settings which
causes the current configuration to be destroyed and a device reset. This
method is also useful when the user’s password(s) have been forgotten.
Configuration, resetting all of the configuration and control settings which
causes the current configuration to be destroyed and a device reset. This
method is also useful when the user’s password(s) have been forgotten.
Procedure
To reset COM port settings:
1. At a terminal directly connected to the unit’s COM port, configure the terminal
to operate at 9.6 Kbps, using a character length of 8 bits, with one stop bit,
and no parity.
and no parity.
2. Reset the unit, then immediately and repeatedly press Enter at a rate of at
least once per second until the System Paused screen appears.
3. Tab to the desired method, and enter yes (or y) for the selected prompt.
If no (or n) is entered, or if no selection is made within 30 seconds, the unit
returns to the condition or operation it was in when the system reset was
initiated, with the COM port rate returning to its configured rate.
returns to the condition or operation it was in when the system reset was
initiated, with the COM port rate returning to its configured rate.
The endpoint resets itself, going through a self-test. Connectivity is restored
and the Main Menu screen appears.
and the Main Menu screen appears.
If entering yes to prompt . . .
Then . . .
Reset COM Port usage
Port type is set to Terminal.
Data Rate (Kbps) is set to 9.6.
Character Length is set to 8.
Stop Bits is set to 1.
Parity is set to None.
Reload Factory Defaults
Yes (or y) will restore all factory-loaded
configuration, and control settings contained in the
Default Factory Configuration area are loaded.
configuration, and control settings contained in the
Default Factory Configuration area are loaded.