Custom Security Electronics, Inc. 800-244-8648

Access Control

Access control is the restricting of how and when people enter and/or exit an area. Each client’s needs vary and requirements vary by industry. Physical access control can be achieved by a human (i.e. a guard or receptionist); through mechanical means such as locks and keys; or through technological means such as card access systems. Card access systems allow people or vehicles into a restricted area via identification through coded keys, magnetic cards, or biometric readers such as hand, face, voice, finger or retina readers. 


When a credential is presented to a reader, the reader sends the credential’s information to a control panel, a highly reliable processor. The control panel compares the credential's information to the client’s database. When the credential presented does not have permission to enter that door at that time, access is denied and the door remains locked. If there is a 
match between the credential and the database, the control panel operates a relay that in turn unlocks the door. Often the reader provides feedback, such as a red LED for an access denied and a green LED for an access granted. 


The access control database keeps a record of not only changes made to the database itself but events that happen within the system. That is, the requesting of access by individual credentials and the granting/denying of access. Events can be alarmed events and recorded. An alarm is an event that requires acknowledgement. For example, if a person holds the door open too long to allow others to piggyback on his access, an alarm can be sent to a security guard’s computer screen letting him/her know that an event has occurred that needs to be addressed. 

Custom Security Electronics, Inc. is a factory-trained certified dealer of DSX Access Systems.