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G-13163-A2-GB20-10 March 1999
Asynchronous Terminal Interface
Operation
Overview G-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before Using the Asynchronous Terminal Interface G-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Restoring ATI Access G-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Initiating an ATI Session G-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ending an ATI Session G-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menu Organization G-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using ATI Screens G-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Customer Identification G-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying LED Conditions G-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing Configuration Options G-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying or Editing Configuration Options G-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Saving Edit Changes G-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Establishing Access Security on a Port G-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting a Password G-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Entering a Password to Gain Access G-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration Worksheets for the ATI G-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview
You can configure and manage the DSU/CSU from an
asynchronous terminal that is configured for 9.6 kbps,
8 characters, no parity, and 1 stop bit.
This appendix provides operational examples to help
you become familiar with the use of the Asynchronous
Terminal Interface (ATI) for DSU/CSU control.
By convention throughout this appendix, examples of
screens are shown as they appear with the standalone
4-port DSU/CSU.
Before Using the
Asynchronous Terminal
Interface
You can connect the asynchronous terminal directly to
the COM port of the DSU/CSU, or you can establish a
remote connection using dial-in (via the integral modem)
or Telnet access.
Before using the ATI, you may use the DSU/CSU’s
front panel to set certain configuration options for
asynchronous terminal operation. Use the Configuration
(Cnfig) branch of the front panel menu and edit the User
Interface (User) configuration options for asynchronous
terminal operation. Refer to the Changing Configuration
Options section in Chapter 3, Operation, and Appendix C,
Configuration Options.
To connect a terminal to the DSU/CSU using Telnet
access, refer to the Configuring the DSU/CSU for Telnet
Access section in Chapter 3, Operation.
Restoring ATI Access
If the DSU/CSU is misconfigured, leaving it in a state
that does not support asynchronous terminal operation, the
recovery procedure consists of power cycling the
DSU/CSU, waiting for the completion of the power-up
self-test, and then pressing the asynchronous terminal’s
Return key five times in succession. (Begin pressing the
Return key within two seconds after the completion of
power-up self-test, and do not wait longer than one second
between each successive key press.) This procedure
allows you to use the System Paused screen to reset the
COM port configuration options or to reload all factory
default configuration options.
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