GSM Site Monitoring Unit (GSMU)
The GSM Site Monitoring Unit (GSMU) communicates to the Monitoring Centre via a mobile phone network.
The unit includes enhanced movement detectors to stop the mobile unit from being removed.
The GSM Site Monitoring Unit is the communication link between the subject who wears the Personal Identity Device and the Monitoring Centre. One GSM Site Monitoring Unit is usually located in the subject's home but additional units can also be sited in a place of work or training establishment should an extended curfew order be required.
The GSM Site Monitoring Unit uses a dual receiver and aerial system, which together with its 99 levels of sensitivity enables an accurate boundary to be placed around curfew sites. As the GSM Site Monitoring Unit has the ability to detect the presence of a large number of individual subjects, it is ideally suited for use in hostels, training establishments and work projects.
Information concerning the status of the GSM Site Monitoring Unit itself and each Personal Identity Device is sent to the Monitoring Centre as soon as an event or change occurs.
The GSM Site Monitoring Unit has an integral battery that operates in the event of interference to the power supply. The battery is recharged from the power supply without reconfiguration when reconnected.
The GSM Site Monitoring Unit is fully sealed, has no external switches accessible to the subject and in design resembles a domestic clock radio. It has three additional functions, a clock - synchronised by the Control Centre, a call button to connect the subject to the Monitoring Centre and a call button programmed to allow the subject to alert the emergency services if needed.
