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The GS1900-48 is a 48 + 2 port Gigabit L2 switch with 48 gigabit ports.
Hardware:
RTL8393M SoC
Macronix MX25l12805D (16MB flash)
128MB RAM
6 * RTL8218B external PHY
2 * RTL8231 GPIO extenders to control the port LEDs, system LED and
Reset button
2 Uplink ports are SFP cages which support 1000 Base-X mini GBIC modules.
Power is supplied via a 230 volt mains connector.
The board has a hard reset switch SW1, which is is not reachable from the outside.
J4 provides a 12V RS232 serial connector which is connected through U8 to
the 3.3V UART of the RTL8393. Conversion is done by U8, a SIPEX 3232EC.
To connect to the UART, wires can be soldered to R603 (TX) and R602 (RX).
Installation:
Install the squashfs image via Realtek's original Web-Interface.
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>