Description

This reference design showcases a Type-4 (PoE 2: 4-Pair) 24-port Ethernet switch for Power over Ethernet (PoE) applications which can send up to 90W per port for for IEEE 802.3bt (PoE 2) applications and up to 120W per port for non-standard applications. Based on the MSP430F523x family: our FirmPSE system software for this design reduces time to market and frees-up valuable software resources by enabling real-time communication with the system and customization of firmware. This design supports power management with priority: multiple power supplies: legacy PD detection: field upgradability: UART/I2C communication with the host: and more. In addition: two of these designs may be cascaded through the edge connectors in order to support up to 48-port PSE systems.List of Required HardwarePSEMTHR24EVM-081: Mother board for 24-port IEEE 802.3bt (PoE 2) ready PSE systemTPS23881EVM-083: IEEE 802.3bt (PoE 2) ready PSE daughter card for 24-port PSE systemPSEMCUDAUEVM-082: MSP430 daughter card for 24-port IEEE 802.3bt (PoE 2) ready PSE systemMSP-FET: Flash tool for flashing FirmPSE app code and BSL code to MSP430USB2ANY: Interface adapter to communicate between FirmPSE GUI and MSP430List of Software to DownloadFirmPSE APP code: PSE system firmware application codeFirmPSE BSL code: PSE system firmware boot strap loader codeFirmPSE GUI: TI’s TPS2388x FirmPSE System Software Ecosystem GUIStep-by-step to getting started: Step 1: Order hardware Step 2: Download the software Download the FirmPSE application code image: FirmPSE BSL code image and FirmPSE GUI here.Step 3: Watch hardware setup and GUI tutorial videos Step 4: Download and review the user guides24-Port (4 Pair) Power Sourcing Equipment Reference Design for Multi-port ApplicationsFirmPSE host interfaceStep 5: Review the additional design tools listed belowHardware design filesSchematics and block diagramsTest dataDesign files (see below)CAD/CAE symbols (see below)How to Load TPS2388x SRAM and Parity Code Over I2CGet more out of your power supply with port power managementChallenges and solutions for PoE systems in Ethernet switchesSupport and training E2E LinkRelated TI devicesTPS23881TPS23882MSP430F5234LM5020TLV431INA240REF3425LM5050-2TPS7A4001TPS3890