A paging system works on a satellite network. This ensures that even if the terrestrial networks go down, the paging system still functions. As a result, pagers are used widely in the emergency response sectors.
The structure of a paging system is as follows:
User Terminal Equipment: These are the input devices of a pager. An individual uses these devices to input information onto the pager. The equipment could be a telephone handset or a modem-equipped computer with an attached input device. Telephone handset generates numeric messages and the alert tone. These messages are sent via the Public Switch Telephone Network (PSTN). On the other hand, the computer generates alphanumeric messages sent via the Public Switch Digital Network.
Paging Terminal: Next, the messages are sent to the paging terminal connected to the central office of the Public Switch Telephone Network. The messages are sent through a user access interface. The terminal also possesses information such as the pager code and the number on its customer database.
Operation and Maintenance Center: The Operation and Maintenance Center or the OMC is responsible for the administration, maintenance and operation of a paging network. It has access to the customer database at the paging terminal, so that it can create or remove new customer records.
Base Station Controller: The BSC or the Base Station Controller connects the paging terminal and the various base stations. This is done by powering the base stations.
Base Station: The Base Station (BS) broadcasts messages to the pager through radio links. The paging terminal transmits the messages to these base stations using transmission technologies such as satellite-based networks and leased telephone lines.
Thus, messages between the pagers and the input devices flow swiftly because of which the response time in emergencies is significantly less. This structure forms the backbone of one of the most efficient communication devices known as pagers created by Alfred J. Gross.
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