User guide

Installing the Cisco 1005 2-23

Checking Your Router Installation

After you ﬁnish installing your router, attempt to transfer data and check the LEDs on the

front panel to make sure everything is working properly. (See Figure 4-1 in the chapter

“Troubleshooting the Cisco 1005.”)

Step 1 Make sure that the LED labeled POWER is on steadily, and that the LED labeled

SYSTEM OK is on when the router is plugged into the power source. The system

OK LED blinks during startup and then remains on steadily while the router is

operating. When these LEDs are on, it indicates that the router is receiving power

and that it has passed internal diagnostic tests.

Step 2 Make sure that the LEDs labeled LAN TX (Ethernet transmit) and LAN RX

(Ethernet receive) are ﬂickering, and that the link OK LED is on. When the LAN

TX and LAN RX LEDs ﬂicker, there is Ethernet trafﬁc on your LAN. When the

LAN is very busy, the LED might appear to be on instead of ﬂickering. If the LED

is off, there may be a problem with the unit, or there may be no trafﬁc on the LAN.

When the link LED is on, the router is sensing the Ethernet link signal on the

network. If the link LED is off, the router is not sensing the Ethernet link signal

on the network, and the LAN TX and LAN RX LEDs will be off as well.

Step 3 Make sure that the LEDs labeled SERIAL TX and SERIAL RX are ﬂickering. The

ﬂickering indicates that there is WAN trafﬁc on the serial port. The LEDs might

ﬂicker at intervals of up to 10 seconds, or not at all, depending on the router

conﬁguration and ﬂow of data packets through the router.

If you do not see the correct LED indications, refer to the chapter “Troubleshooting the

Cisco 1005” for more information about the LEDs.