Industrial POE switch
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POE Power Injector
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1 / 401Highlights
- IEEE 802.3af/at/bt POE Injection
- Multi-port Mid-span Design
- TCP/IP and MQTT Management Protocols
- Dual-band 2.4 GHz Monitoring Radio
- Hardware / PCB Design
- 48 GPIO Expansion Pins
02Project Overview
A multi-port POE power injector (mid-span) that adds POE capability to existing non-POE Ethernet switches. The unit injects power into up to 48 Ethernet ports simultaneously while maintaining full data pass-through at Gigabit speeds. An on-board management interface accessible via TCP/IP and MQTT enables per-port power monitoring, scheduling, and remote reboot. Three simultaneous operating modes allow mixed 802.3af, 802.3at, and 802.3bt devices on the same chassis.
03Key Components
Multi-port POE PSE ControllerHigh-efficiency Isolated DC-DC ConvertersGigabit Ethernet MagneticsMacronix 16 Mb NOR Flash Memory
04Salient Features
- Supports 802.3af / at / bt standards.
- Up to 48 injected ports per unit.
- TCP/IP and MQTT management protocols.
- Three simultaneous POE modes.
- Per-port power metering and scheduling.
- Gigabit pass-through with zero data degradation.
05Scope of Work
01Schematics Entry
02PCB Layout Design
03PCB Fabrication and Assembly
04Firmware Development
05Power Integrity Testing
06Board Bring-up and Testing
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