3Com VCX V7000 Installation Manual page 319

h In the confirmation window that appears, click OK.
i While the gateway is rebooting, disconnect the Ethernet crossover
cable from the front panel and reconnect the original Ethernet cable.
At any time during the network configuration process, you can reset the
V6100 Integrated Branch Communications platform to the original
factory settings. To do so, press the reset button and hold it for a
minimum of 6 seconds. The reset button is located inside the front panel
of the CPU module. A semi-circular opening, located directly above the
serial port provides access to the reset button.
CAUTION: Use a non-conducting probe to press the reset button in
order to avoid contact between the chassis and any of the pins in the
serial port.
Gateway Installation 319