Netgear GS728TPv2


The Netgear GS728TPv2 is a 24 + 4-port Gigabit L2 switch with 24 gigabit ports.

  • 3 * RTL8218B external PHY
  • RTL8214QF external PHY for SFP cages
  • RTL8231 PIO extender controls the port LEDs of the SFP cages
  • MSP430FR2311 microcontroller for fan control
  • Nuvoton M0516LDN microcontroller (SoC-PoE management)
  • 3 * Broadcom BCM5912100 PoE controllers
  • Maxim MAX3421E USB 1.1 Peripheral/Host Controller
  • 32MB Flash in an MXIC MX25L25635FMT

4 Uplink ports are SFP cages which support 1000 Base-X tmini GBIC modules.

Power is supplied via a 230 volt mains connector, with an internal power supply for 12 and 54 Volt.

The board has a hard reset switch SW1, which is is not reachable from the outside. CN1 provides a 3.3V UART, the pins are marked. From CN1 a cable leads to a conversion pcb for a 12V RS232 serial connector, which is accessible on the router's back.

There are 5 PCBs, a main PCB, a power supply, a PCB for PoE, a UART-RS232 converter, and a smaller PCB for Leds, USB-port and buttons.

Board Pictures
Overview gs728tpv2_overview.jpg
Main board gs728tpv2_board.jpg gs728tpv2_msp430.jpg gs728tpv2_fan.jpg gs728tpv2_usb.jpg gs728tpv2_rtl8214qf.jpg
PoE injector board gs728tpv2_poe_upper.jpg gs728tpv2_poe_lower.jpg

It ships with a bootloader based on Realtek's SDK for RTL83xx SoCs and Linux 3.18 based on Realtek's second generation SDK. It has a web interface for all management functions.

There is experimental hardware support for the device in OpenWrt. SFP does not work, nor does USB and fan control.

  • gs728tpv2.txt
  • Last modified: 2021/02/03 16:56
  • by pepe2k