A user PIN with duress cannot be configured for the last user PIN in an allocation of PINs for a specific number of PIN digits. Configuring duress with ‘PIN+1’ or ‘PIN+2’ requires either 1 or 2 additional PINs to be available after a specific PIN. For example, for an allocation of 4 digit PINs, the total number of PINs available is 10,000 (0–9999), in this case, if using ‘PIN +1’ duress configuration, the last user PIN that can be allocated duress is 9998. If ‘PIN+2’ is used then 9997 is the last user PIN that can be allocated duress.
Also, if the duress feature is enabled then consecutive user codes (for example, 2906, 2907) are not permitted, as entering this code from the keypad would activate a user duress event.
Once the system is configured for PIN +1 or PIN +2 in System Options (see Options) and specific users enabled for duress (see Users), it must not be changed unless all the users are deleted and re-allocated user PINs.