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Unifi Switch Lite 16 PoE
A fanless 16-port switch with 8 PoE+ ports and built-in power supply. Rated PoE power budget is 45W.
Components
- SoC: RTL8382M
- RAM: 128MiB DDR3 (Winbond W631GG8MB-15)
- Flash: 16MiB SPI NOR (Macronix MX25L12835FMI-10G)
- Ethernet ports:
- 1-8: SoC's internal RTL8218B
- 9-16: External RTL8218B
- PoE: Broadcom platform
- Nuvoton M0516LDN management MCU
- 1× Broadcom BCM59121 PSE controller
- Extra I/O
- 2× NXP PCA9555A: 16-bit I2C GPIO expander (U11 and U111)
- 5× 74VHC595: 8-bit latching shift register with 3-state output enable (U112, U114, U117, U118, U119)
- Power supply: 100V-240V AC with C13 plug, internal PSU provides power for PoE and switch functions. Low voltage power is managed by an internal TPS23754 802.at PD controller.
Board configuration
- SoC
- gpio 2: I2C-0 SCL (bit banged)
- gpio 3: I2C-0 SDA (bit banged)
- gpio 12: I2C-1 SCL (bit banged)
- gpio 13: I2C-1 SDA (bit banged)
- I2C-0: 5 devices reported by
i2cdetect- PoE MCU @ 0x20
- PCA9555A @ 0x22
- PCA9555A @ 0x25
- gpio 0: white LED, active high
- gpio 1: blue LED, active high
- gpio 2: PoE output enable, active high
- Unknown device @ 0x48
- Unknown device @ 0x49
- I2C-1: no devices reported by
i2cdetect