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D-Link DIR-640L User Manual
Section 1 - Product Overview
Hardware Overview
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1
COM Port
RS-232 COM port for serial port communication and legacy device connectivity.
2
LAN Ports (1-4)
Connect 10/100 Ethernet devices such as computers, switches, and NAS.
3
Internet Port
The auto MDI/MDIX Internet port is the connection for the Ethernet cable to the cable or DSL modem.
4
Reset Button
Pressing the Reset button restores the router to its original factory default settings.
5
Power Receptor
Receptor for the supplied power adapter.
6
Power Button
Turns the device on/off.
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