Access control

Access control system operation
When a credential is presented to a reader, the reader sends the credential’s information, usually a number, to a control panel, a highly reliable processor. The control panel compares the credential's number to an access control list, grants or denies the presented request, and sends a transaction log to a database. When access is denied based on the access control list, the door remains locked. If there is a match between the credential and the access control list, the control panel operates a relay that in turn unlocks the door. The control panel also ignores a door open signal to prevent an alarm. Often the reader provides feedback, such as a flashing red LED for an access denied and a flashing green LED for an access granted.

There are three types (factors) of authenticating information:

  • Something the user knows, e.g. a password, pass-phrase or PIN
  • Something the user has, such as smart card or a key fob
  • Something the user is, such as fingerprint, verified by biometric measurement

Passwords are a common means of verifying a user's identity before access is given to information systems. In addition, a fourth factor of authentication is now recognized: someone you know, whereby another person who knows you can provide a human element of authentication in situations where systems have been set up to allow for such scenarios. For example, a user may have their password, but have forgotten their smart card. In such a scenario, if the user is known to designated cohorts, the cohorts may provide their smart card and password, in combination with the extant factor of the user in question, and thus provide two factors for the user with the missing credential, giving three factors overall to allow access.

Model Image
Model Name SC405 SF100 X7
Support - Fingerprint/Card/Password Card+Access Control Fingerprint+Card+Access Control Fingerprint+Card+Access Control
Fingerprint/Card/Password Capcity (User Capacity) NA 1500 2000
Card Capacity 30000 5000 200
Face Capacity NA NA NA
Transaction storage 50000 80000 NA
Dimension 143 x 95.5 x39.5mm 90 x 90 x 34mm 88 x 88 x 35
Communication RS232/485, TCP/IP USB-host , TCP/ IP, RS 485 NA
Battery Backup: 1) Essential 2) Not Essential Not Available Not Available Not Available
Display Color Black & white Color Color
Card Reader Yes Yes Yes
Power Supply 12V DC, 2Amps / 3Amps 12 V DC, 1.5 Amps 12V ,3A

Pictures / Images / Colors / Dimensions mentioned above / shown in the picture are for reference only. It may vary slightly.