Vertical Comdial DX-80 or DX-120

Time Change Instructions

Vertical Comdial DX-80 and DX-120

Time Change Instructions

Note: If no change is made the clock will be off by one hour and if Daylight
Saving Time is enabled for the system, the clock will change the first weekend in April (April 1st)
per the previous Daylight Saving Time regulations making the time correct at that point.

However, if you manually make the change and do not disable the Daylight Saving Time feature, the
clock will change once again on the first weekend of April. Therefore, if manually making the change
you should also disable the Daylight Saving Time feature. Instructions for doing so are also
included below.

Updating the System Time

DX-80 Software Revision F2x (also works for DX-80 Software Revision F32 and
later and F17 of DX-120)

From any telephone:

  1. Press Feature # * and enter in your password. (Default password ########)
  2. Press Show and enter 08 14.
  3.  Press Save then Show.
  4.  The last 2 digits of the year will be displayed. If you do not need to change the year, press Next.
    If you need to change this value, press Chg, enter in two digits for the year and press Save then
    Next.
  5.  The current month setting will be displayed. If you do not need to change the month, press Next.
    If you need to change this value, press Chg to cycle through the 12 months. When you reach the
    appropriate setting, press Next.
  6. The display will show the currently programmed day of the month. If you do not need to change
    the date, press Next. If you need to change this value, press Chg, enter in two digits for the date
    and press Save then Next.
  7. The day of the week (Sat – Sun) will now be displayed. If you do not need to change the day,
    press Next. If you need to change this value, press Chg to cycle through the days of the week.
    When you reach the appropriate setting, press Next.
  8. The current hour will be displayed. Press Chg and enter in two digits for the hour in military
    format. Press Save and Next.
  9. The display will now show the programmed minutes. If you do not need to change the minutes,
    press Next. If you need to change this value, press Chg and enter in two digits for the minutes
    (01-59). Press Save then Next.
  10. You will be returned to the top level off System Time. To exit programming, press On/Off (SPK)
    button twice.

Disabling the Daylight Saving Time Feature

This is for any system that supports the Daylight Saving Time Feature (DX-80 Software Revision F39 and
later and DX-120 Software Revision F17)

This is ONLY for DX-80 or DX-120 systems that automatically update for Daylight
Saving Time on the wrong weekends! (Pre-2007 Daylight Saving Time)

From any telephone:

  1. Press Feature # * and enter in password. (Default password ########).
  2. Press Show and enter 03 47. (Note: For DX-120, enter 03 49).
  3. Press Save (Note: For DX-120, you must also then press Show).
  4. The option to enable/disable the Daylight Saving Time will appear. Valid choices are Y (yes –
    enable daylight saving time) and N (no – disable daylight saving time)
    It is recommended to disable Daylight Saving Time otherwise the time will change once again on the first weekend of April as the previous Daylight Saving Time rule will be invoked.
  5. Press Next to save the change.
  6. To exit programming, press On/Off (SPK) button twice.
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