User Manual
5
1.3 The Rear and Side Panels of the HG556a
WiFi button
1. The rear panel of the HG556a provides the following interfaces and buttons:
Interface or
Button
Meaning
Diagnostic button, press this button to check the status of the
four LAN indicators.
ADSL Connects the telephone jack on the wall.
PHONE1, PHONE2 Connects a phone.
LAN1–LAN4 Connects PCs, switches, or other equipment.
USB Connects a USB storage device, such as a USB disk, a printer etc.
RESET
Restores the factory settings if this button is pressed and hold
more than 5 seconds.
NOTE
After you restore the factory settings, the customized data will be
lost. Therefore, press the RESET button with caution.
POWER Connects a power adapter.
RESTART
Restarts the HG556a if this button is pressed and hold more than
0.5 seconds.
Note for the four LAN indicators:
The four LAN indicators are normally off.
When the diagnostic button is pressed, the four LAN indicators turn red or
green, see
1.4 Description of the Indicators on the Front and Rear Panels.
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