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4/18/11
WARNING: Disconnect primary power prior to servicing.
FM HD Radio System
Section 1 Introduction/Specifications
Connection Manager:
The Connection Manager is responsible for managing the
connections from the various service providers. It authenticates service providers and
delivers the specific information regarding the Contracts and Services for each service
provider. It provides the mechanism for service providers to deliver data services to the
EOC. It allows multiple service providers to connect to the EOC as well as for multiple
services to be delivered from either one or multiple service providers. The Connection
Manager connects to the EOC Database for authentication information as well as to the
Logistics Processor for bandwidth and QoS information.
Contract Management API:
Service providers deliver data services to the EOC based
upon their ‘Contracts’ with the broadcast stations or the EOC with regards to the
services sent and the bandwidth and QoS requirements. The Contract Management API
provides a standard interface for client applications to add data about service provider
contracts to the EOC Database and to administer this information.
EOC Database:
The persistent data for the functioning of the EOC is stored in the EOC
database. All the Administrative functionality is handled by interaction with this
database. Administration is basically an offline activity to enable broadcast stations to
configure the EOC according to their requirements. Other EOC components like the
Connection Manager and the Logistics Processor write data about their functioning into
the EOC Database. The EOC Monitor component connects to the EOC database to view
the status of the EOC and the data.
Exporter Configuration API:
The Exporter Configuration API basically supports the
ability to configure an exporter in order to support data services. It provides a standard
way for client applications to access and configure an exciter through an exporter. The
API supports the management of station information, mode configuration and channel
configuration, which enables clients to allocate bandwidth resources for data services.
HD PAD API:
The HDPAD API allows applications to create and transmit PAD
content. It allows for application to input PAD data without having to worry about the
data encoding and transfer protocols. The PAD API transfers the data streams to the
SPS Processor in the EOC where it is multiplexed with the audio streams.
HD Studio
- An application that can be used to stream audio from locally stored files to
the SPS processor. it will also generate SPS PAD, MP1, MP2, MP3, etc. service modes.
Logistics Processor:
The Logistics Processor is responsible for the data reception from
the service providers in accordance with the specific protocol chosen for that particular
service provider. It is also responsible for managing the bandwidth and QoS for each
service provider as defined in the Contracts between the service provider and the
broadcast station. It communicates with the Connection Manager as well as the
Exporter. It also communicates with the EOC Database in order to retrieve
configuration information and save its performance data.
