Door Access Control System: In-Depth Overview

Security breaches, once a distant concern, have become a pressing reality. Ensuring controlled access to your premises stands paramount in this age of heightened risks.

Amidst all the tech-driven safety measures, one stands out as the first line of defense: the door access control system. Dive in as we unveil the intricacies and importance of this powerful security mechanism.

What’s A Door Access Control System?

Door Access System

A door access system is an advanced security solution designed to manage and monitor who can enter or exit specific locations within a facility.

Unlike traditional keys, which can be copied or lost, these systems utilize digital mechanisms such as key cards, biometrics, or PIN codes to control access [1].

By incorporating technology, access control systems offer a more secure, flexible, and convenient way to ensure that only authorized individuals can access certain areas, keeping intruders and potential threats at bay.

How Does A Door Access Control Work?

At its core, a door access control solution operates using a combination of electronic door locks, an access controller (a card reader, fingerprint scanner, or keypad), and a control panel or cloud-based system that manages the users’ access permissions.

When an individual attempts entry, the reader scans the provided credentials, whether a card, fingerprint, or code. The system then checks these against its database.

Access is granted if the credentials match an authorized user; otherwise, the door remains locked. Additionally, all access events are typically logged, providing valuable insights into the flow of personnel and enhancing the access control security infrastructure.

Door Access Control System Buying Guide

Acces Control RFID Set

Are you embarking on the journey to invest in door access control solutions? Ensuring the right fit for your needs can seem daunting, but fear not. Here’s a handy guide to help you pick from the best access control systems available.

Security & Scalability

When selecting an access control system, prioritize security systems [2] that offer robust security features and have the flexibility to scale. As your organization grows, your security needs might evolve. A scalable system can adapt to increased user numbers and even broader facility requirements without demanding a complete overhaul.

Number Of Entry Points To Secure

Evaluate the total number of doors or entry points that need securing. Some premises require only primary entrance control, while others, such as large corporate offices or industrial sites, may need multiple points of access managed. This assessment will help determine the complexity and size of the control system you’ll need.

Door Control System Upgrade

If upgrading from an older system, ensure the new system can smoothly integrate or replace the existing infrastructure. Investing in a backward-compatible system can save considerable time, effort, and costs associated with installation and migration.

System Integration

Consider how the door access system will integrate with other security systems. Compatibility with video surveillance, intruder alarms, and HR databases can enhance the security ecosystem’s efficiency and provide a more comprehensive security landscape.

Number Of Employees/Visitors

Estimate the number of regular employees and occasional visitors, contractors, and temporary staff who might need access. Systems should be user-friendly, allowing for easy addition and removal of users, with robust visitor management systems, and capable of efficiently handling your peak access requirements. Check out this guide about touchless visitor management system.


The door access control systems are available with different types tailored to various needs. Picking the one that aligns with your requirements ensures both functionality and efficiency.

Local Single Door Access

It is a standalone system, ideal for premises with a singular point of entry that needs securing. It doesn’t require any network connection and is often managed with traditional keypads or swipe cards.

While it’s less complex, it’s perfect for smaller establishments or areas where only one door needs restricted access.

Wireless IP Door Access

These systems allow remote management options, including monitoring with the power of wireless technology and the internet. They can cater to multiple doors and integrate seamlessly with other IP-based security solutions.

With the added advantage of real-time notifications and updates, they are apt for larger facilities or businesses with multiple access points requiring enterprise access control.

Ease Of Installation

Installing A Single Door Access Control System

The installation process can vary significantly between systems. While some might be plug-and-play, others could require intricate cabling and setup.

It’s essential to consider whether you’ll need professional installation or if it’s a task you can handle in-house. Moreover, consider the long-term maintenance and any potential need for periodic upgrades or adjustments.

Report Logs & Audit Trails

A crucial feature for many businesses is the ability of door control systems to keep detailed logs. Audit trails help monitor access, detect anomalies, and review security incidents.

Opt for systems that offer comprehensive reporting features, allowing you to view entry and exit times, unauthorized access attempts, and other vital security data.

Remote Management

Today, having the ability to manage security from anywhere is invaluable. Remote management helps administrators control door access from any device connected to the internet, be it a smartphone, tablet, or computer.

This function is handy for larger businesses or those with multiple locations, allowing real-time adjustments and instant access revocations if needed.

Real-Time Security Alerts

Staying updated with every security activity becomes crucial, especially in high-risk environments. Systems that offer real-time security alerts provide instant notifications whenever there’s a breach, unauthorized access, or even failed attempts.

Such immediate alerts allow quicker reactions, potentially preventing malicious activities or promptly addressing concerns.

Visual Verification & Wider Security Integrations

Merging access control with visual verification tools like security cameras can be a game-changer. Systems that integrate seamlessly with cameras provide facial recognition, helping validate or investigate any anomalies in access patterns.

Furthermore, broader security integrations can connect door access systems with alarms, fire control, and other security layers, ensuring a comprehensive protection umbrella.

Automated Lockdown Functions

Automated lockdown functions come to the rescue in situations that demand immediate security responses, like threats or breaches.

With the push of a button or under certain predefined conditions, systems can lock down specific areas or entire premises, denying all access to the building and ensuring safety until the situation is assessed and resolved.


While it’s tempting to go for the most feature-rich system, balancing needs and budget is crucial. The cost of a complete system isn’t just the initial purchase price; consider long-term expenses like maintenance, software updates, and potential expansions or upgrades.

Always opt for a system that offers the best value, combining functionality with affordability.

Cloud Vs On-Premise Security Servers

In access control systems, deciding between cloud-based and on-premise security servers can shape your system’s efficiency, scalability, and security.

Cloud solutions provide flexibility, automatic updates, and remote access, eliminating the need for physical infrastructure. On the other hand, on-premise solutions offer more control over data, with security being as strong as the organization’s internal policies and procedures.

While cloud servers cater to dynamic needs and often have a subscription model, on-premise solutions might require higher initial investments but can be more cost-effective in the long run.

Most Popular Credentials For Access-Controlled Doors

Opening Door using Mobile Access

Mobile Credentials 

Mobile credentials harness the power of smartphones, turning them into security access tools. Utilizing Bluetooth or NFC, mobile credentials allow users to unlock doors with a simple tap or even from a distance.

They offer convenience, as most people always have their phones on hand, and provide enhanced security through multi-factor authentication.

RFID Key Cards & Fobs

RFID (Radio Frequency Identification) [3] key cards and fobs are the most commonly used access credentials.

They function by presenting the physical credentials near RFID readers, which then communicate wirelessly to grant access. Their popularity stems from their cost-effectiveness, ease of distribution, and simplicity of use.

Also read: Best RFID Access Control Systems & Buying Guide

Biometric Credentials

Biometric credentials provide the pinnacle of personalized security, using unique physical characteristics such as fingerprints, facial recognition, or even retinal scans.

These methods ensure that only the designated individual can gain access, eliminating risks associated with lost or stolen cards and fobs. While biometric readers offer heightened security, they require more sophisticated equipment and may have a higher initial cost.


Why is door access control so expensive?

Door access control systems are intricate setups that ensure the security of a premises. Their cost often reflects the quality of materials, sophisticated technology, software integration capabilities, and advanced features they offer.

Moreover, professional installation, periodic maintenance, and potential upgrades add to the initial expense. However, it’s essential to view these systems as long-term investments in security and convenience, often preventing potential losses from security breaches.

What is a multi-door access control system?

A multi-door access system allows administrators to secure and manage access to multiple doors or entry points within a facility from a centralized interface.

This type of system is especially beneficial for larger buildings or complexes, enabling efficient access rights management for diverse user groups across various zones or areas.

In Summary

Door access control systems are pivotal in today’s security landscape, offering an unmatched layer of protection for buildings and facilities.

Whether you opt for mobile, biometric, or RFID-based systems, the goal remains consistent: ensuring authorized access while keeping potential threats at bay. Investing in a robust system safeguards physical assets and contributes to the peace of mind of both management and occupants.

As technology evolves [4], so do the sophistication and capabilities of these systems, making them an indispensable asset for modern infrastructure.

Contact us today for a free quote to experience the benefits of our expertise and top-notch solutions.



Do you have a security project?

About Us

Safe and Sound Security is a modern security system installation and low voltage cabling company serving residential and commercial customers for over a decade.

Do you have a
security project?


Are you looking to install a

Commercial Access Control System?

Get in touch with a Commercial Access Control System specialist today!