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- OP4520-IO-PCIe: uses a PCIe link to communicate with the real-time computer.
- OP4520-IO-REMOTE: uses one SFP socket configured with OPAL-RT’s MUlti-System Expansion (MuSE) /wiki/spaces/HDGD/pages/4725237 link to communicate with the real-time computer.
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- PCIe connection uses point-to-point standard PCIe interface between the simulator and the expansion unit, similar to other OPAL-RT I/O expansion units (OP5600-IO, OP7000, OP5607, OP7020).
- SFP connection allows high-speed communication (up to 5 Gbps) between the unit’s FPGA module and an external device. This mode can be used either for OPAL-RT MUlti-system Expansion (MuSE) /wiki/spaces/HDGD/pages/4725237communication (connected to a high-speed link compatible real-time simulator) or standard Aurora-based communication between any two units (either OPAL-RT or another third-party manufacturer). The FPGA bitstreams must be prepared for each FPGA module using either the MuSE (see note) option or the Generic Aurora block provided in OPAL-RT’s RT-XSG toolbox.
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