TP-Link TX-6610 manual The Back Panel

		TX-6610	1-Port Gigabit GPON Terminal User Guide
	On	There is a device connected to this LAN port.
LAN
	Flash	The device is sending or receiving data over this LAN port.
	Off	There is no device connected to this LAN port.

1.3.2 The Back Panel

Figure 1-2

ON/OFF: The switch for the power.

POWER: The Power plug is where you will connect the power adapter.

GPON: The GPON is where you will connect the fiber.

RESET: There are two ways to reset the ONT's factory defaults.

Method one: With the ONT powered on, use a pin to press and hold the Reset button for at least 5 seconds. And the ONT will reboot to its factory default settings.

Method two: Restore the default setting from “Management  Factory Defaults” of the ONT's Web-based utility.

LAN: Through the port, you can connect the ONT to your PC or the other Ethernet network devices.

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