Four telemetry inputs can monitor indications such as a ‘crew alert’ switch, hand-brake on/off, blue-lights on, door opened or other signals. An analogue input allows voltages to be measured over the range 0-36V and two open collector outputs allow relays, solenoids, locks or other control devices to be operated.

An alarm input allows connection of a vehicle security alarm and a “force off” input allows the unit to be shut down in areas where transmissions are not permitted such as petrochemical sites or security restricted areas or disabled for privacy reasons when installed in privately owned staff cars when the staff member is off duty.

The VL220 transmits location updates to any host that is reachable from the GSM network via IP networking – either over the GSM operator’s public internet connection or over a private GPRS APN in a corporate environment.

Vehicle location information can be delivered to host computer systems, job despatch systems, or command and control systems via the Thorcom resource location gateway (ARL Gateway) or can be accessed via a web-based managed services such as Xlocate®.