Most systems offer a feature that notifies the console operator of the amount of available storage for history information preventing information from being written over. The message will usually alert the operator to archive the information into a removable magnetic tape. Another modem must be used when the information is recieved to convert the information back from analog to digital. The auxiliary relays found in access control panels or nodes that control external devices. Refers to the front end that a user must interact with to allow access.
Readers can be keypads, card readers, proximity readers.
In some metal installations or with a deadlock, the strike may simply be an opening or cut into the jamb. The ability to utilize the time in and time out information per user, for the purpose of keeping track of employee's hours at a facility. Many time and attendance packages work as stand-alone systems, and interface with most payroll software. Allows access based on time of day, date and user. Also allows for holidays, etc.