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3-3
Getting Started
3. ReviewHelpMenu: If you are communicating with the AFS-16 via the text
interface (SSH, Telnet or Modem), type /H and press [Enter] to display the Help
Menu, which lists all available AFS-16 commands. Note that the Help Menu is not
available via the Web Browser Interface.
3.4. Fallback Switching
A/B fallback switching can be controlled via the Text Interface or via the Web Browser
Interface.
3.4.1. Fallback Switching - Text Interface
Access the AFS-16 Text Interface as described in Section 3.3 and then proceed as
follows:
1. ReviewtheHelpMenu: At the Text Interface command prompt, type /H and press
[Enter] to display the Help Menu, which provides a basic listing of all available
AFS-16 commands.
2. ManualA/BSwitching: Use the manual circuit switches to change A/B paths.
Note that this example assumes that the Master A/B Gang Switch and individual
circuit module switches have not been disabled.
a) MasterA/BGangSwitch: Toggle the Master A/B Gang Switch between the
“A” and “B” positions. The LED indicators should follow the Master Switch,
indicating that each circuit has switched the “A” and “B” paths.
b) CircuitModuleA/BSwitch: Choose an individual Circuit Module and toggle
the module’s A/B Switch between “A” and “B”. The LED indicators should
indicate that the module has switched the A/B path.
3. CodeActivatedSwitching: To control A/B fallback switching using ASCII
commands, invoke the following commands at the AFS command prompt:
a) Type /T *,B and press [Enter]. All Circuit Modules should switch to the
“B” path.
b) Type /T 1,A and press [Enter]. Circuit Module number 1 should switch to the
“A” path.
c) Type /T 2,3,4,A and press [Enter]. Circuit Modules 2, 3, and 4 should
switch to the “A” path.