RTLPlayground/doc/devices/ZX310S-4T2XH.md

ZX310S-4T2XH/

The following is a documentation for the managed switch marked as ZX310S-4T2XH and sold by Horaco.

The original software is running UART on 57600 baud rate. The solder holes of the UART header are filled in. In order to install a UART header, they need to be cleared first. A 1.2mm drill can be used, alternatively a de-soldering wick. The original firmware uses 57600 baud 8N1

CPU: RTL8372 Flash: 2MByte Winbond W25Q16DV (U3) PHY RTL8261BE

Label specifications

• Name:
• Ports:
  • 4 × RJ45: 10/100/1000/2500 Mbps
  • 1 x RJ45: 10/100/1000/2500/5000/10000 Mbps
  • 1 × SFP+: 1000 / 2500 / 10000 Mbps
• Power: 12V DC, 2A barrel connector

What works

The device is fully supported:

• All 4 2.5GBASE-T RJ45 ports work at 10/100/1000/2500 Mbps
• The 10GBit port works. TODO: Fix EEE, speed selection
• The SFP+ port supports 1G, 2.5G and 10G modules
• LEDs work with the same indiciations as the OEM firmware

PCB overview

Board markings

• Top silkscreen: PCB-SL310S-4T1T1X-V1.0.1-24107

Top side

Bottom

J1, serial console

J1 pin	Signal
1	TX (Output)
2	RX (Input)
3	GND
4	3V3

Power supply

Input power is delivered via barell plug, 12V 2A adapter was provided.