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RTLPlayground/doc/devices/FG-4GT-2SX_V2.0.md
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2026-08-02 06:46:52 +08:00

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FG-4GT-2SX_V2.0

Following is documentation for unmanaged switch marked as FG-4GT-2SX_V2.0.

Original software is running UART on 9600 baud rate.

The signal quality of UART is bad. Therefore, electrical isolation is needed for the TTL wires in some cases. A simple way to isolate them is to pinch them by fingers.

Brands

  • Ruiying RY-4GT-2SX

What works

  • All four 2.5GBASE-T RJ45 ports at 10/100/1000/2500 Mbps
  • Both SFP ports supporting 1G, 2.5G and 10G modules
  • LEDs

PCB overview

Board markings

  • Top silkscreen: FG-4GT-2SX_V2.0

Front panel

Top side

Bottom

Power supply

Input power is delivered via barell plug, 12V 1A adapter was provided.