Structure for the connection of a plurality of electronic devices to an ARINC 629 type bus

A structure for the connection of a plurality of electronic devices to an ARINC (Aeronautical Radio, Inc.) type external bus, said structure comprising:

• a local bus having a length less than or equal to 10 cm to overcome a phenomena of attenuation and propagation time;
• a bidirectional connection channel configured to connect each of the devices located in one and the same zone to the local bus;
• and
• at least one connection channel configured to connect the local bus to the external bus,
• wherein each connection channel of the electronic devices comprises a mechanism configured to permit transmission on the local bus only when all other connection channels of the structure are inactive,
• wherein each connection channel of the structure comprises a mechanism configured to broadcast information received thereon to all other connection channels of the structure without memorization and without internal frame information filtering, and
• wherein the plurality of electronic devices connected to the structure share the same collision domain.

A structure for the connection of a plurality of electronic devices to an ARINC (Aeronautical Radio, Inc.) type external bus, said structure comprising:

• a local bus with a sufficiently small length to overcome phenomena of attenuation and propagation time;
• a bidirectional connection channel for connecting each of the electronic devices located in one and the same zone to the local bus;
• and at least one connection channel for connecting the local bus to the external bus, wherein each connection channel of the electronic devices comprises:
• means for permitting transmission on the local bus only when all other channels are inactive;
• a transmitter/receiver stage that is supplied by the device and is connected directly to the local bus;
• a logic stage that combines logic functions of the channel and is connected to the transmitter/receiver stage;
• an analog stage that combines analog functions of the channel and is connected to the logic stage;
• and
• an isolating stage providing for electrical isolation between the electronic device and the analog stage, and
• wherein the logic stage of the connection channel for connection to the external bus comprises means for preventing signals transmitted by the external bus from being re-transmitted to the external bus, so as to avert any echo phenomenon.

A structure for the connection of a plurality of electronic devices to an ARINC (Aeronautical Radio, Inc.) type external bus, said structure comprising:

• a local bus with a sufficiently small length to overcome phenomena of attenuation and propagation time;
• a bidirectional connection channel configured to connect each of the devices located in one and the same zone to the local bus;
• and
• at least one connection channel configured to connect the local bus to the external bus,
• wherein each connection channel of the electronic devices comprises:
• a mechanism configured to permit transmission on the local bus only when all other channels are inactive;
• a transmitter/receiver stage that is supplied by the device and is connected directly to the local bus;
• a logic stage that combines logic functions of the channel and is connected to the transmitter/receiver stage;
• an analog stage that combines analog functions of the channel and is connected to the logic stage;
• and
• an isolating stage providing for electrical isolation between the electronic device and the analog stage, and
• wherein the logic stage of the connection channel for connection to the external bus comprises a logical gate configured to prevent the signals transmitted by the external bus from being re-transmitted to the external bus, so as to avert any echo phenomenon,
• a bidirectional connection channel for connecting each of the electronic devices located in one and the same zone to the local bus;
• and
• at least one connection channel for connecting the local bus to the external bus,
• wherein each connection channel of the electronic devices comprises means for permitting transmission on the local bus only when all other connection channels of the structure are inactive,
• wherein each connection channel of the structure comprises means for broadcasting information received thereon to all other connection channels of the structure without memorization and without internal frame information filtering, and
• wherein the plurality of electronic devices connected to the structure share the same collision domain.