Cisco 805 Series, Hardware Installation Manual, Page: 23 / 64

Product Overview 1-5
LEDs
LEDs
Table 1-2 summarizes the function of each LED. All LEDs are on the router front panel
except for the LINK LED, which is on the router back panel.
Table 1-2 LED Functions
LED
Corresponding
Port/Component
Color Function
OK Power Green On when power is supplied to the router and when the router
completes the self-test procedure and begins operating.
LAN Ethernet Green On when the Ethernet interface is up.
Off when the Ethernet interface has been shut down.
RXD
(Received)
Ethernet Green Blinks when the Ethernet port receives a packet.
TXD
(Transmitted)
Ethernet Green Blinks when the Ethernet port sends a packet.
CD
(Carrier detect)
Serial Orange On when the serial interface is up and a carrier signal is detected.
Off when a carrier signal is not detected.
RXD
(Received)
Serial Orange Blinks when the serial port receives a packet.
TXD
(Transmitted)
Serial Orange Blinks when the serial port sends a packet.
LINK Ethernet Green On when Ethernet device is connected.
Off when the connection has a problem. Refer to the Chapter 3,
“Troubleshooting.”