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Provisioning LTPH-UM-1109-01, Issue 1
10 January 9, 2002 H2TU-C-231 List 2
Resetting to Factory Default Values
AlluseroptionsfortheH2TU-C-231List2(Table 6 on page 18) can be set to the factory default values using the
MODE and SEL pushbuttons. To set the user options to their default values:
1 Press the SEL pushbutton for 6 seconds until the following message appears:
DFLT NO
2 Press the SEL pushbutton while the DFLT NO message is displayed.
The message changes to DFLT YES indicating the factory default values are now in effect and the display
returns to the normal mode.
To terminate the DFLT mode without setting the factory default values, do one of the following:
• Press the MODE pushbutton to return to the normal display mode.
• Wait 30 seconds for the unit to return to the normal display mode.
Displaying System Parameter Settings
To scroll through the current settings of all system parameters, press the MODE pushbutton for 3 or more seconds.
The H2TU-C-231 List 2 displays the following parameters:
• Software version number
• List number
• Type of frame pattern received from the DSX-1
• Line code of the signal received from the DSX-1
• All user-configured parameter settings
• Loop attenuation threshold setting
• Margin alarm threshold setting
Disabling an Alarm
If the system is in a Minor alarm state, the alarm relay can be disengaged by pressing the SEL pushbutton. This
activates the Alarm Cutoff (ACO) indication. For more information about alarms, see “System Alarms” on
page 40.
Loopback Modes
See “Loopback Operation” on page 43 for instructions on using the MODE and SEL pushbuttons to activate
loopbacks.