Reading Leds - Cisco 1841 - 3G Bundle Router Hardware Installation Manual

Reading LEDs

Reading LEDs

The LEDs on the router enable you to determine router performance and operation. The System Power
(SYS PWR) LED and the System Activity (SYS ACT) LED are on the front panel; all the other LEDs
are on the back panel.
Table 8-1
LED Indicator
SYS PWR
SYS ACT
Cisco 1800 Series Routers (Modular) Hardware Installation Guide
8-4
– There may be a problem with the card or cable. See the
Warranty Terms" and the
sections of the "Introduction to Cisco 1800 Series Routers (Modular) Hardware
Documentation" document for warranty and customer service contact information.
LED Indicators on Cisco 1800 Series Routers
State
Off
Solid green
Blinking
green
Off
Blinking
Chapter 8
"Obtaining Documentation and Submitting a Service Request"
Meaning
No output is coming from the
internal power supply.
Router is receiving power, and
the internal power supply is
functional.
During bootup, router is
booting up normally.
After bootup, router is
operating in ROM monitor
mode.
No packet transfers are
occurring.
System is actively transferring
packets and monitoring
internal activity
Troubleshooting Cisco 1800 Series Routers (Modular)
"Cisco One-Year Limited Hardware
Possible Causes and Corrective
Actions
Power is not switched on at the
router.
Power is not available from the
source.
Faulty input power wires or
connections are missing.
Failed power supply in the router. To
replace the internal power supply,
call your Cisco technical support
representative.
Normal indication. No action is
required.
Normal indication. No action is
required.
See the router rebooting and
ROM monitor information in the
Cisco 1800 series software
configuration documentation.
Interface card connections are not
functional.
Router is not configured properly.
Check configuration, and make
corrections as necessary.
Normal indication. No action is
required.
OL-5876-03