Basics of Access Control
Kantech Support
https://www.youtube.com/watch?v=2QTFiQVdrgg

Transkript (automatisch erstellt)

0:09 Hello and welcome to a Kantech training video. Today we're going to talk about the basics of access control.
0:15 What is access control? Access control is a method of controlling passage into or out of an area.
0:24 A typical Kantech setup for access control is an access controller. This is what takes the decision to let
0:31 people in or out. It also manages unlock schedules and many other things. A reader or keypad. This allows you to enter your unique
0:43 credentials to gain access. A door contact. This allows the controller to see if the door is open or closed.
0:54 A door strike or magnetic lock. This will release the door when you get an access granted. A request to exit.
1:03 This allows you to exit an area without entering any credentials. So how does this all work? Let's have a look at each component.
1:14 The door strike. There are many types of locking devices. The most common is a door strike. The majority will unlock the door when
1:22 powered up. The door contact. This shows the position of the door opened or closed.
1:31 This will allow us to know if the door was opened without permission or was left open. An access card.
1:40 The card is actually just a big antenna and a chip. The chip's powered through the antenna, so there is no power source included.
1:48 Once it's powered, it will transmit a string of zeros and ones at a specific frequency.
1:56 The reader or keypad. The reader transmits on a specific frequency. When a card answers, it sends the
2:04 information it read to the controller. The reader will only report the information it reads from the card. It does not make any decisions on whether
2:12 to give access or not. It only sees a string of zeros and ones and sends this information in Wiegand format to the controller.
2:22 A request to exit unit. This is a unit that will tell the controller that someone is trying to exit the room without having to enter
2:30 any credentials. The request to exit is usually a motion infrared detector or simply a manually activated button.
2:39 The request to exit or Rex for short will transmit an infrared beam in front of the door. When it detects someone approaching the
2:47 door, it will send a request to the controller to unlock the door. An access controller. This is the brains of the operation. It
2:57 manages everything. It constantly monitors the door contact to know when the door is open or not. It will unlock the door. It will manage the
3:07 unlock schedule if you wish to have the door unlocked for a period of time. It will manage request to exit requests. It will receive the card information
3:18 from the reader and decrypt the information to see if this user has the right to access this door at this time and many other functions.
3:29 How does it know what the string of zeros and ones mean? It uses a decryption template to translate the binary string into a card
3:38 number. If the decryption matches the encryption on the card, it will read the correct card number and give access.
3:46 If it's the wrong decryption, it will send an access denied message and not unlock the door.
3:53 How does the controller know which user should have access or not? Everything is programmed from the Entrapass software on a computer.