Configuring Mercury controllers to not require entering # after PINs

2025-07-02Last updated

If your PIN is shorter than the maximum PIN length configured on the Mercury controller settings page of the Synergis™ Appliance Portal, you must press the # key after entering your PIN. To eliminate having to press the # key, you can change the maximum PIN length to match the PIN length that's most used in your system.

What you should know

The default maximum PIN length for most of the Mercury database layouts is six digits, except for the Long PINs layout, which is fifteen digits.
Important:
Before reducing the maximum PIN length, consider the following:
  • PINs longer than the configured maximum PIN length don't work. Be sure to shorten any longer PINs to match the new maximum PIN length.
  • Duress PINs must be at least four digits long.

Procedure

  1. Log on to the Synergis Cloud Link unit.
  2. Click Configuration > Mercury controller settings .
  3. From the side menu, click the Database layout settings tab.
  4. Select the Custom maximum PIN length option, and then enter the new value in the Maximum PIN length field.
    Example:
    If you mostly have four-digit PINs in your system, set the value to 4. Anyone with a four-digit PIN will no longer be required to press the # key after entering their PIN. Anyone with a PIN shorter than four digits will still be required to press the # key.
  5. Click Save.
    The Reset dialog box opens with the following message: Applying these changes resets all Mercury controllers and might cause significant downtime for the connected doors.
  6. Click OK.
  7. Perform a software restart.