ETH-MG21 POE / ETH-MG24 POE
ETH-MG21 POE and ETH-MG24 POE add PoE to the MG Ethernet gateway: the same cable carries power and data. Useful next to a switch, in a media cabinet, or in a rack. Ethernet, Wi-Fi, and USB are all available. The web console can OTA both Zigbee and the host firmware. Zigbee2MQTT on the network uses tcp://dongle.local:6638; ZHA uses socket://dongle.local:6638. Setup: Zigbee2MQTT with an Inswift coordinator and Add a coordinator with ZHA. Host firmware: Flash ETH dongle firmware. To copy IEEE from another Silabs coordinator: ETH-MG web change IEEE (coordinator migration).
Firmware
| Firmware | MG21 | MG24 |
|---|---|---|
| Zigbee coordinator | Yes | Yes |
| Zigbee router | Yes | Yes |
| Thread | Yes | Yes |
| MultiPAN (Zigbee + Thread together) | No | Yes |
Silicon
| Item | EFR32MG21 | EFR32MG24 |
|---|---|---|
| Core | ARM Cortex-M33, up to 80 MHz | ARM Cortex-M33, up to 78 MHz |
| Flash | up to 1024 kB | up to 1536 kB |
| RAM | up to 96 kB | up to 256 kB |
| Radio | 2.4 GHz, TX up to about 20 dBm | 2.4 GHz, TX up to about 19.5 dBm |
MG24 wins on flash and RAM. Pick MG21 for everyday Zigbee or Thread alone; pick MG24 for larger meshes or MultiPAN.
Versus non-PoE ETH-MG
Radio and protocols are the same; the difference is PoE. If you do not need PoE, see ETH-MG21 / ETH-MG24. For TI, see ETH-52P / ETH-52P7.