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The DGS-1210-10P is a 8 + 2-port Gigabit L2 switch with up to 65 Watts of PoE power on the 8 Gigabit ports. 2 Uplink ports are SFP cages which support 1000 Base-X mini GBIC modules. It has an RTL8380M SoC with 8 built-in PHYs, and a RTL8231 GPIO extender to control the port LEDs, system LED, a reset button and a mode switch button for the PoE. Both buttons are software controlled. Power is supplied via a 5V 2A barrel connector. The RTL 8380M SoC has 128MB internal RAM. There is 32MB Flash memory (U19). A Serial header is found at J3. Pins are Vcc(3.3V, Square), TX, RX and GND. Serial connection is via 115200 baud, 8N1.

PoE is controlled by a Broadcom BCM59121B0KMLG via a Nuvoton ARM microcontroller, which in turn talks a serial protocol with the RTL8380M (19200 baud, 8N1). The exchange between the ARM microcontroller and the RTL SoC can be snooped by connecting a logic analyzer to header J9. Square pin is 3.3V, the middle pins are TX from SoC and ARM chip respectively, the pin opposite of Vcc is GND. J10 is an SWD header to program the Nuvoton Chip.

It ships with a bootloader based on Realtek's SDK for RTL83xx SoCs and Linux 2.6 based on Realtek's SDK. It has a web interface for all management functions.

OpenWRT Support

There is complete hardware support in an experimental OpenWRT branch. Of the L2 features, port isolation, 4096 VLANs, Local Port Mirroring, EEE are supported. There is support to do a basic configuration of PoE, advanced features such as prioritizing power for ports is not supported so far. Media change is detected on the SFP cages for fibre optic cables, however after hot-swapping an SFP module, manual setup is needed. There is no support to read the SFP ID/Sensor data via I2C. Original features such as cable integrity tests, offloaded remote mirroring and Port-ACLs are not yet supported.

PCB

dgs-1210-10p_board.jpg

The board identifies as RTL8380M_INTPHY_2FIB_1G_DEMO (Port Count: 10) for the Realtek SDK.

  • dgs-1210-10p.1598691726.txt.gz
  • Last modified: 2020/08/29 09:02
  • by biot