# Glossary

ABC [D](https://support.haasalert.com/help/glossary#d) [E](https://support.haasalert.com/help/glossary#e) FG [H](https://support.haasalert.com/help/glossary#h) [I](https://support.haasalert.com/help/glossary#i) JKLMNOPQ [R](https://support.haasalert.com/help/glossary#r) STUVWXYZ

## D

### DAT

Digital Alerting Transponder (HA-5 or HA-7)

Standalone device that mounts to the inside of vehicles and includes cellular and GPS capabilities.

## E

### EZ

Exclusion Zone (EZ)

A geo-fenced geometric circle used to prevent stationary alerts. Moving alerts will continue to be shown within this zone.

## H

### HA-D

HA-Direct (HA-D)

Hardware-less way to connect to send/receive R2V alerts through already installed solutions such as Samsara, Cradlepoint, Geotab, and others.

## I

### Incident

Incident

When a HAAS Alert connected vehicle is “active” in the roadway and has not moved for a period of time. This creates a stationary hazard.

## R

### Relay

Relay (FF)

An add-on solution that allows a department to utilize their vehicle data in systems they own such as computer-aided dispatch systems.