Access Control 101

26th November, 2019

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    1. What is access control security?


    Access control is a method of security which restricts access to a place or resource, by only allowing authorised members access. Physical access control restricts which personnel can enter a building or room, and computing access control restricts who can log onto a computer network.


    1. Why is access control important?


    Access control is important for the safety and security of a building’s staff and possessions. Access control systems prevent unauthorised personnel from entering a building or room, whilst allowing quick and easy access to authorised personnel holding the correct ID or biometric input data.


    1. What is the best access control system?


    Cost-effective access control brands: Paxton. Pac  ACT


    1. What is the meaning of access control?


    Access control is a security system which restricts access to a place or resource to those with permission. Physical access control systems limit access to a building or room to authorised personnel only. Logical access control limits access to computer networks, files and data.


    1. Why do we need access control?


    Access control is needed to protect the overall safety of a building by preventing unauthorised entry, or to protect sensitive information by restricting access to a network resource. Access control security systems, both physical and logical, enhance security.


    1. What is biometric access control?


    Biometric access control is security a method by which a person is identified by their physical attributes, the most popular being fingerprints and iris. This allows ease of access without the need of carrying access control pass, and prevents entry into a building by stolen passes.


    1. What is door access control?


    Door access control is an access control system which only allows entry to a restrict list of users with permission to enter a building via its doors.

    This secures a premise by preventing unauthorised entry, protecting valuables and personnel in the property.


    1. What are the essential processes of access control?


    The essential process of access control is to only allow access to a selective list of people. Physical access control only allows authorised people to enter a premise, and logical access control only allows authorised people to log onto a computer network or view files. 


    1. How much does an access control system cost?


    This depends on the number of doors and the brand.


    A cheaper installation would cost about £800 per door.


    A high-end installation would cost about £1600 per door.


    1. How much does a key fob system cost?


    As with above, this depends on the number of doors and the brand.


    A cheaper installation would cost about £800 per door.


    A high-end installation would cost about £1600 per door.


    1. Why is physical access control important?


    Physical access control protects personnel and property from unwanted access by only permitting access to those authorised to enter a building. Examples of physical access control are barriers, fobs, biometric entry and turnstiles, all of which prevent personnel from entering a physical space freely without presenting identification.


    1. What are two main types of access control?


    There are two different types of access control: physical access control, which restricts who can and cannot enter a space by only allowing the entry of authorised personnel with ID or an access hardware device. Logical access control controls who has access to resources on a computer network.


    1. What is access control and its types?


    Access control is a method of security which restricts access to only those who are authorised. Physical access control prevents entry into a premise. Logical access control prevents unauthorised use access to computing resources, examples including a file or data.


    1. How do access cards work?


    An access cards works by sending an ID number via its internal chip to the antenna coil of the receiver. When held next to the electronic reader required for giving access, the encoded number is transmitted to the reader by radio frequency waves.


    1. What is the main purpose of access control?


    The main purpose of access control to prevent unauthorized access to both physical and logical systems by only permitting selective access to authorised users. Physical access control protects the safety of personnel and possessions. Logical access control protects private and confidential information.


    1. What is a door access system?


    A door access system is an access control system which controls who can enter through a building door. Those who have permission to do so are given a key fob or access card, or have their biometric data authorised, which when presented unlocks the door.


    1. How does access control systems work?


    An access control system is an electronic system which works in a network.

    This network consists of readers which connect to a central point.

    Together, this controls who can enter a building, only allowing those with the authorised ID code to enter.


    1. How does a key card work?


    A key card works by storing data on itself, which is transmitted to the reader. If the card has an authorised ID number, the access control system will allow the user to enter the building by unlocking the door of the building.


    1. Why do we need access control?


    Physical access control is needed to prevent unauthorised entry into a premise, which protects the personnel and possessions of a building. Logical access control protects confidential information which is only accessible by those with the correct login credentials.


    1. What is access control on my phone?


    Your mobile phone device can act as a virtual access control key to unlock doors and allow entry into a building. This uses NFC (Near Field Communication), which is a short range and high frequency wireless communication technology that allows electronic devices to exchange information.


    1. How does access card work?


    Access cards allow the user access through electronically powered doors which have a card reader installed within its proximity.  If the user assigned to the card has permission, they will be granted permission to enter the building.


    1. What are physical controls?


    Physical controls are measures put in place to secure a physical property by detecting, counteracting or reducing the security risks. Examples include access control systems (barriers, gates, turnstiles, entry phone systems, door entry systems) and security CCTV surveillance.


    1. What is fob access system?


    A fob access system consists of a key fob, which is a small hardware device and a fob reader. The user possesses the keyfob, which is placed within proximity of the fob reader, which then grants access to the person wishing to enter the property.


    1. What is a fob reader?


    A fob reader is an electronic device which reads the radio frequency wave transmitted by a key fob, and subsequently allows the user access to the property by unlocking the electronic door if the ID number associated with the fob is registered as being authorised.


    1. How do you an install access control system?


    1. Install the sensors at points where users will be required to present authentication
    2. Install the main controller at a central point to connect all the sensors. This can be either wired or wireless.
    3. Configure system using software by manufacturer to create list of authorised personnel.


    26. How do you install a biometric access control system?


    Step 1: Install the biometric unit on the wall or where you wish for the user to have access granted

    Step 2: Install the control panel and connect to the biometric unit either by cable or wireless

    Step 3: Configure the access control system and create list of authorised biometric data.


    1. What is the price of a biometric access control system?


    The cheapest biometric unit would cost £150

    The most expensive biometric unit would cost £1500

    The overall cost would depend on manufacturer used and the number of doors


    1. What is electronic access control?


    Electronic access control enables a user to enter a premise without the use of a key, but instead, a hard device that requires the user to be an authorised to enter the building… The access control system unlocks the door when the user is granted permission after providing the correct credentials. The door is only unlocked for a limited amount of time.


    1. What is CCTV access control?


    CCTV access control is the pairing of CCTV and access control, which increases the security of a premise. Video analytics ensures that the person entering the building is the owner of the device used to enter. This prevents unauthorised personnel from accessing a building with a stolen card or key fob.


    1. How to integrate access control with CCTV:






    Facial recognition access control


    1. What cable is used for access control?


    Composite cables are used for access control installations. Composite cables allow for connectivity of all access control components, including card readers and door locks. These cables are commonly used on most building sites.


    1. What is an access control point?


    An access control point is a point at device is required to permit authorised personnel access to a premise. Examples include biometric reader or card reader placed next to and connected to an electronic door, which unlocks when authorised personnel provide correct credential information.


    1. What is facial recognition access control?


    A facial recognition access control is a form of biometric access control.  Face biometrics of users with permission to enter a restricted area are stored in an access control list, which enables them to verify their identity and be granted access.


    1. What is a card access control system?


    A card access control system is a form of access control where the authorised user uses an access card to gain access, by presenting it to a card reader. Once verified as an authorised user, the person gains access through the doors.


    1. What is difference between access control & door entry system?


    An access control system and door entry system are the same thing. Both refer to the method of security which restricts access to an area (building, room, e.t.c) only to those with authorised on the Access Control List. Those with the correct access devices (key fob, card, biometric data) are given access.



    1. What is a RFID access control system?


    This is a commonly used technology in access control systems, used for the identification and entry of authorised personnel only to entry a premise. Radio Frequency Identification technology (RFID) uses electromagnetic waves to capture and read data. This is used in access cards and key fobs.

    RFID access control system


    1. How to integrate fire alarm with access control:


    Fire alarms and access control systems need to be integrated so that in the instance of a fire, the access control system unlocks the doors to allow staff to exit building as quickly as possible and allow entry to the fire service. This can be done by connecting the fire alarm to the electric lock.


    1. How to install access control system:


    Choose authentication type (biometric, keyfob, electromagnetic card, e.t.c), devices and technology for connecting devices. Install the sensors at the points you wish to have access granted. Then install the main controller at a central point and connect to the sensors.


    1. How to install card access control system:


    Step 1: Install card readers at access points where users will be prompted to present access


    Step 2: Configure system and create list of users authorised to enter building.


    Step 3: Issue access cards to users with permission to enter building


    1. How to install electric door release access control system:


    Step 1: Choose access control device type, choices being: entryphone, biometric reader, access card, key fob.


    Step 2: Plan and install access points with appropriate reader type


    Step 3: Configure system and create access control list


    Step 4: Issue access devices to users with permission to enter


    1. How to install Paxton access control:


    Step 1: Choose Paxton authentication device & reader type


    Step 2: Plan and install at appropriate access points


    Step 3: Connect to control panel either wirelessly or wired


    Step 4: Install Paxton Net2 Access software to manage user rights


    Step 5: Issue authentication devices to authorised personnel



    1. What is net2 access control?


    Net2 is a PC based access control software produced by the access control manufacturer Paxton.  The solution allows for the centralised administration for larger sites of up to one thousand doors and fifty thousand users. It includes advanced features such as IP camera integration to enhance building security.


    1. How to use net2 access control:


    Net2 is installed onto a PC, and is then used to control Paxton access control equipment.

    Users and doors can be added or removed from the system. More advanced features include integrating with CCTV to enhance security of access control.

    Read more here.


    1. How to install net2 access control:


    Step 1: download software from Paxton online portal for installers, or load DVD onto computer drive.

    Step 2: select version you wish to install which is suitable for your access control device type.

    See more here:

    1. What access control software?


    Access control software manages the installed access control installation of a building, managing the doors of the building and the permissions of users. For example, the leading manufacturer Paxton offer Net2 software as a software solution to manage their Paxton access control products.


    1. What is wireless access control?


    Wireless access control is an access control system which employ a wireless access point or router which allows for the wireless communication between locks and wireless devices in an access control system.


    1. How to configure door access control:


    Step 1: Configure card reader and button


    Step 2: Configure controller


    Step 3: Supply power supply to controller, in accordance to the number of controllers


    1. How does fingerprint access control work?


    Fingerprint biometric access control works by reading a person’s fingerprint, which is then compared to pre-recorded scan and algorithm of the biometric data. If there is a match, door will be unlocked to  allow the person to enter. If not, the door will not unlock


    Biometric access contro


    1. Why choose Paxton access control?


    Paxton is a major security company which offer cost-effective premium access control solutions and software. Paxton offers a five year ‘no quibble’ guarantee, so that any damaged products are replaced or fixed.


    1. What is fob access control?


    A key fob is a small hardware device used to authenticate a user as part of an access control system. If the number emitted by the key fob is part of the Access control list, the user will be given access to the building by unlocking the door.


    1. What is IP access control?


    IP access control is a form of security where a device is used to identify and permit access users into a building or premise. An IP access controller can typically support up to four access control readers, making it a suitable solution for a smaller building.


    1. What is access control solutions?


    Access control solutions are methods of security which prevents the entry of unauthorised personnel into a building or access to a resource on a computer network, by only allowing the entry of users given special permissions on an access control list.


    1. What is vehicle access control?


    Vehicle access control enables the efficiency passage of authorised vehicles. A tag is installed into the vehicle which is detected by the barrier, which subsequently allows the passage of the car by opening access gate.


    Vehicle access contro


    1. What is proximity access control?


    Proximity access control is a method of security which involves the use of a reader and access card/fob. When held near the reader, radio wave with an ID number is emitted. If the code is correct, the electronic door unlocks temporarily to allow access.


    1. What is automated an access control system?


    An automated Access control system will automatically restrict access to areas dependent on the credentials supplied by the user


    1. How to work door access control system:


    Door access control system works by having a card or biometric reader installed next to a door. The reader processes the data on the credentials. If this matches the data on the ACL, a request is sent to the server to unlock the door.


    1. Why choose a door access control system?


    A door access control system secures a premise frin unwanted entry, keeping personnel and inventory safe, and reducing risk of theft. The owner of the building or employer can also track activity of who is entering and leaving the premise.


    1. What are access control devices?


    Access control devices work as part of an access control system to secure a building by only admitting authorised to enter. Examples of access control devices include: security barriers, entryphone systems, key fob and card access, and biometric access readers.


    1. What are access control technologies?


    Access control is a method of security which limits access to space by only allowing those with permission to enter. Examples of physical access control technologies include:


    –              Entry phone,

    –              Card access,

    –              Key fobs

    –              Barriers,

    –              bollards


    1. What is an ANPR camera?


    An Automatic Number Plate Recognition (ANPR) camera uses optical character recognition technology to read vehicle registration plates, allowing systems to monitor the movement and location of vehicles. These are commonly used in car parks to issue parking tickets, and motorways for the issuing of speeding tickets.


    1. What is ANPR technology?


    Automatic number plate recognition (ANPR) technology is used to read vehicle plate numbers, from an ANPR camera installation. It can be used for many purposes, such as granting parking tickets in a car park or preventing crime by tracking vehicles.


    1. What is ANPR parking?


    Automatic Number Plate Recognition ANPR technology can be used by car park companies to issue car park tickets. The ANPR camera identifies the number plate of the car entering the car park. When the vehicle leaves, a ticket can be issued to charge according to the duration the vehicle has been parked for.


    1. What are the advantages of biometrics?

    Biometric data is unique form of identification which can be used for individual identification, due to every person having unique characteristics (e.g iris patter, voice pattern, hand shape, fingerprint). The top advantages of biometrics are its use for authentication, authorisation and access control.


    1. Why do we use biometrics?


    Biometrics are a unique form of identification which is perceived to be more secure than passwords, and biometric services require less database storage. Biometrics in access control saves the inconvenience of lost or stolen key fobs.


    1. What is the purpose of biometrics in access control?


    Biometrics can be used as a method of authentication in access control systems, allowing the user to be identified by their own unique biometric data which has been submitted to an access control list. This can be used for both physical and logical access control systems.


    1. What are the types of biometrics?


    There are two types of biometrics, which are classified as Behavioural and Physiological biometrics.

    Behavioural biometrics include gait analysis, voice pattern, mouse movements.

    Physiological biometrics include: fingerprint, hand geometry, iris recognition, and facial recognition. The latter type in commonly used in access control systems.


    Biometric types


    1. What is biometrics authentication?


    Biometric authentication is a method security used in access control and identification. Biometrics are the measurements of human characteristics such as facial recognition, voice pattern, iris recognition. If the individual’s biometric data matches that on the database, they will be granted entry into a building or passage through a barrier.


    1. What is a biometric input?


    A biometric input device measures the unique characteristics of a person (iris, hand, fingerprint).  The most common biometric input devices are computers and cameras. A biometric reader in an access control is also an input device, which uses stored information to check if the person’s biometric data.

    1. Why are biometrics used in security systems?


    Biometrics are used in security systems to decrease the risk of unauthorised access, either from a stolen access hardware device (e.g an access card or key fob) or ID. Biometric data is unique and therefore difficult to imitate. Examples of biometrics include: iris patterns, fingerprint pattern, hand shape.

    1. How much does a biometric fingerprint scanner cost?


    From £150 to 1500 depending on manufacturer and requirements


    1. How secure is biometrics?

    Biometrics are more secure than passwords and cannot be as easily stolen as key fobs or access cards. There is always the possibility the data base can be hacked, or that somebody’s finger print can be obtain from an imprint left somewhere.


    1. What is gate barrier system?


    A gate barrier system is a security system comprising of a gate which restricts vehicle users and pedestrians from freely accessing a place without present authentication of some type. Examples of barrier systems include vehicular gates, barriers and bollards.


    1. How does an automatic boom barrier work?


    An automatic boom barrier works by having the boom barrier bar or pole rising vertically to allow the passage of authorised vehicles to drive through. This either happens when a vehicle has been authorised to enter by ANPR technology or the vehicular user has printed off a parking ticket.


    Vehicle access contro


    1. How do turnstile access control system work?


    Turnstile access control systems work by only allowing the access of one person at a time, allowing for one way traffic only. The person walking through is only given access upon the presentation of the appropriate credentials, examples being biometric data, identity documents and access cards.

    Turnstile barrier gate


    1. What are the disadvantages of turnstiles?


    The disadvantage of a turnstile access control system is that it is easier for people to jump over or under turnstiles, therefore increasing the likelihood of unauthorised entry and decreasing security. Paddle gates are taller, and therefore could be an alternative.


    1. What is iris recognition used for?


    Iris recognition is a form of biometric identification using the iris patterns of a person’s eyes. This is commonly used in access control systems, used as a means of granting a user access to a premise providing that their biometric data is on the permissions list.

    Iris recognition access control

    1. What is fingerprint biometrics?


    Fingerprint biometric is a method of biometric access control in which the person is recognised by their unique fingerprint data before being granted entry into a building or through a barrier. Other biometrics used in access control include hand shape, facial recognition, iris recognition, voice patterns and gait analysis.



    1. what is video entry phone


    A video entry phone is a form of access control whereby access is granted via an intercom system. Calls are made at the entrance of a building and the person in the building, through an audio-visual device, decides whether to admit that outside person access.


    1. What is the best wireless intercom system?


    The best wireless intercom system is the one that is most suitable for the application its needed in.


    1. How much does it cost to install an intercom?


    An intercom would cost approximately £500 a flat to install but this would depend on what is required, audio only or video and audio, handset type, front station types will all effect the costs

    1. What is CCTV access control?


    CCTV access control is the integration of an access control system with a CCTV. This allows for advanced security, ensuring that the person accessing the building is authorised to use that card or token. This prevents unwanted access from lost or stolen devices.


    1. What does access control do?

    Access control prevents unauthorised entry. Physical access control is a method of security which prevents the entry of unauthorised personnel into a building or space. Logical access control systems restrict users from accessing resources on computer network to only those with permission to view.


    1. How are access control systems supplied with power ?


    Access control panels can be mains powered or powered from POE network switches



    1. What is an access control list (acl)?


    An access control list in both physical and logical access control systems is a list of users with certain permission. In a physical access control system, this would be users permitted to enter a building. IN a logical system, this would refer to users with permission to view an electronic resource.



    1. How to create access control list:


    For a physical access control system, an ACL can be configured by the access control manufacturer’s accompanying software

    For a logical access control system, access lists are filtered by IP packets.


    1. Where to find an access control list:

    In a physical access control system, the ACL can be found on the installed software provided by the manufacturer. In a logical access control system, it can be found in a computer file.


    1. How to backup net2 database:


    Go to the server configuration utility, and in the database tag click “Import copy”

    Find out more on Paxton’s website:


    1. How to update net2 software:


    Access updates on software dashboard and then download installer files. Open this up and install new software.


    1. How to reset net2 plus:

    The Net2 access control unit can be reset in two. The user can reset the TCP/IP or ACU unit. Find out more here:


    1. How to upgrade net2 lite to pro:

    Launch installer on PC and enter product key for Net2 Pro.

    Find out more here:


    1. How to add net2 tokens:

    Select the type of token you would like to add and then enter the token number. Select ‘Add’. Read more here:



    1. How to use net2 card designer:

    Net2 card designer can used to create templates for access cards, which can then be printed off. Read more here:


    1. When was the turnstile invented?


    Turnstile were originally created to allow people to pass whilst keeping livestock in. Clarence Saunders first installed turnstiles in 1913 to prevent his Piggly Wiggly store being from becoming overcrowded.


    1. What is a turnstile barrier gate?


    All three access control systems control pedestrian flow.

    A turnstile barrier has tripod arms which revolves to allow a person through

    Gates and barriers are larger. When the user presents authentication, the barrier or gate will open to allow passage.


    1. What is turnstile access control?


    Turnstile access control is an access control system which uses turnstiles to regulate the passage and exist of people into our out of a building. In most systems, the user has to present a form of ID or an access card to be permitted passage through the turnstiles.


    1. How to install a turnstile:


    Each Manufactures Turnstile will have an installation guide that will have to be followed correctly.


    1. How much does a turnstile cost?


    Turnstiles can cost from £800to £8000 depending on the finish and type required for the site


    1. What is a tripod turnstile?


    A tripod turnstile is typically waist high in height and has three revolving arms, which restricts entry to one person at a time and in an access control system only allows the rotation of the tripod arms if the person has presented the appropriate identification or access pass.


    1. What is the purpose of a turnstile?

    A turnstile is a gate which only allows for the passage of one person at a time, which enforces one-way traffic and can be used in an access control system to only allow the passage of those permitted passage (e.g somebody with a ticket in a train station).


    1. What is turnstile software?

    Turnstile software is employed to managed installed turnstiles. Turnstiles which only permit users on access list will be managed on the software platform.


    1. How does a turnstile gate work?

    A turnstile works by only admitting one person to pass. The turnstile has revolving arms fixed to a vertical pole. Once the person has presented the appropriate access rights, the arms of the turnstile are unlocked, allowing the person to walk through them.


    If you need entry phone installation, access control installation or any other security installation ACCL can help. Get in contact with us today.


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