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RN1000 RabbitNet Expansion Hub

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The RN1000 RabbitNet expansion hub allows the user to add up to 7 expansion cards to their Z-World single-board computer equipped with the RabbitNet expansion bus. SBC's supported include OP7200, BL2500 and BL2600 families of product.

The RN1000 hub provides one port to connect with the master SBC and 7 additional ports for slave expansion cards such as the RN1100, RN1200, RN1300, RN1400 and RN1600.

Using the SBC's 2 native RabbitNet ports, users can distribute up to 14 hubs offering a total of 98 available ports. This architecture allows the construction of very large scale multichannel configurations: for instance BL2500 or BL2600 controllers can be used as basis for configuration including up to 3920 industrialized digital I/Os and 392 analog inputs (such configuration use 14 x RN1000 hubs and 98 x RN1100 expansion cards).

The hubs and expansion cards are deployable along very long distances because the RabbitNet communication protocol uses a fully balanced signal topology (similar to RS422) in addition to its synchronous communications supporting data ratees up to 1Mbps. Broadcast mode is supported, allowing the simultaneous addressing of all connected devices.

Acting as a hardware switch, the RN1000 physically connects the controller to the addressed device. Once connected, the RN device transmits or receives data without any delay on the data. A utility program is provided that allows the user to measure the various switching times for any given context. This ensures that the designed application will perform within any users real-time constrains.

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