| Access Level | A mapping of Timezones to Doors |
| ACU | Access Control Unit (see Controller) |
| ACU Bus | The RS-485 communication line between a VOLO master controller and expansion controllers |
| Airtime Licence | See SIM Licence |
| Commands | Messages or instructions that are sent to Controllers in order to update configuration or activate features. |
| Conflicts | A notification that there are differences between the configuration of a Controller and the desired configuration according to data in the cloud (this will occur briefly with every change made through the VOLO management portal) |
| Connection Mode | Indicates how the Master Controller is configured to communicate (Auto - Ethernet as primary with Modem as secondary, Ethernet - Ethernet only, or GSM - Modem only) |
| Connection Type | Indicates whether the Master Controller is communicating using the local network (Ethernet) or the VOLO Modem |
| Controller | A VOLO Controller. An electronic & software device used to manage physical access through doors |
| Controller Licence | A controller licence is required for each Master Controller. This is required to enable a connection to the VOLO cloud for configuration and event transmission. |
| Credential | General term for an access credential assigned to a user (see Token, PIN) |
| Customer | An 'end user' organisation - the owner of buildings with VOLO installed within them |
| Customer Operator | A person with access to the VOLO management portal with permission to administer users and schedules in a single Customer account |
| Door | A door managed through the VOLO system - with electronic lock, readers, exit buttons etc. |
| Door Open Time | The number of seconds for which a door is configured to unlock after a valid credential is presented or an exit button is pressed. |
| Door Held Open Time | The maximum amount of time a door is permitted to be open before an event is generated flagging that it has been open for too long. |
| Expansion Controller | A secondary VOLO device on a site - manages up to 2 doors and communicates with the VOLO cloud through a Master Controller |
| Event | A message generated by a VOLO controller or the VOLO system to provide an audit trail of activity on VOLO sites |
| General Purpose Input | An input-pin on Controllers that can be used as a basic method of integrating with other devices. |
| General Purpose Output | An output-pun on Controllers that can be used as a basic method of integrating with other devices. |
| Geographic Timezone | A regional Timezone (e.g. Greenwich Mean Time GMT) |
| Hardware Reset | Resetting a Controller to factory settings (erasing all data and configuration settings) |
| Holiday | A 24-hour period where the usual unlock schedule or access levels will be overridden by a different unlock schedule or access level. |
| Installer | An installation organisation - the business responsible for fitting and managing a VOLO installation |
| Installer Operator | A person with access to the VOLO management portal with permission to configure VOLO hardware across one or more Customer accounts |
| Installer Tool | A USB device that is used to update settings on VOLO controllers locally, instead of through the VOLO management portal |
| Installer Tool Software | Desktop Windows software that is used (in combination with the Installer Tool) to update settings on VOLO Controllers locally. |
| Licence | A licence is required for each Master Controller connected to the VOLO cloud and each Modem. Also see Controller Licence and SIM Licence. |
| Master Controller | The primary VOLO device on a site - manages up to 2 doors and provides communication with the VOLO cloud |
| Modem | The modem (either 2G or 4G) supplied with a VOLO master controller |
| Notification | An in-system prompt to inform Operators that action could be required (e.g. a firmware update is available or a PSU fail has been detected) |
| Operator | A person with login information and access to the VOLO management portal/website |
| PIN | Personal Identification Number |
| Power Cycle | Resetting a VOLO Controller (turning it off and on again). This can be done 'softly' through the VOLO management portal, or directly by disconnecting the power and then reconnecting it. |
| Report | A table of data showing an analysis of the information stored in the VOLO system |
| Scheduled Report | A Report that is executed automatically, on a schedule, and delivered to one or more email addresses |
| SIM Licence | A SIM licence is required for each VOLO Modem in use. This is required to enable any communication through cellular networks. |
| Site | A physical location with VOLO controllers installed to manage security and access |
| Slave Controller | Deprecated terminology - see Expansion Controller |
| Timezone | A week-long schedule definition which defines periods of accessible time in which users may gain access through the doors to which the timezone is assigned |
| Toggle Mode | A mode of operation in which a door will toggle between locked and unlocked each time a valid credential is presented. It will remain in each state until a valid credential is presented again. |
| Token | Proximity Token (also see credential) |
| Triggers & Actions | Automated actions that can be configured to run in the cloud in response to receiving specific event types from specific Controllers |
| Triggers & Action I/O | Automated actions that can be configured to run on a Controller in response to specific triggers |
| User | A person managed who has access to one or more Doors managed through VOLO. |
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