What Is a Personal Identification Number (PIN) in E-Plex 2xxx and 5xxx? February 17, 2026 13:23 Updated What Is a Personal Identification Number (PIN) in E-Plex 2xxx and 5xxx?A Personal Identification Number (PIN) is a numeric password.Users enter the PIN to authenticate themselves and gain access to the lock.Applies ToE-Plex 2xxx and 5xxx Related to E-Plex PIN Download Article