Cisco 1003 User Manual page 41

Troubleshooting the Cisco 1003 or Cisco 1004 Router
Troubleshooting the Cisco 1003 or Cisco 1004 Router
This section describes how to troubleshoot the router by using the LEDs on the front panel.
The LEDs indicate the current operating condition of your router. Observe the LEDs, note
any fault conditions that the router is encountering, and then contact your system
administrator.
POWER SYSTEM ISDN ISDN LAN LAN COLLISION LINK
OK B1 B2 TX RX OK
Cisco 1003 and Cisco 1004 User Guide 41