Reading System Leds; Reading Port And Connection Leds - Cisco CISCO1841 - 1841 Integrated Services Router Hardware Installation Manual

Reading System LEDs

Reading System LEDs

Check the system LEDs on the front panel of the router for information about the power, data packet
activity, and CompactFlash activity. See
Table 6-1 System LEDs on Cisco 1800 Series Fixed-Configuration Routers
LED
Indicator State
SYS OK Off
Solid green
Blinking green
1
POE Off
Solid green
Solid amber
CF Off
Solid green or
blinking
1. Inline power is a field-upgradable option on Cisco 1800 series fixed-configuration routers, and is not installed by default.

Reading Port and Connection LEDs

Check the port and connection LEDs to determine router performance and operation. See
Cisco 1800 Series Integrated Services Routers (Fixed) Hardware Installation Guide
6-4
Meaning
If the fan is not running—
• No output from the internal
power supply.
If the fan is running—
Router fault
•
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.
Inline power is not installed.
Inline power is functional.
Inline power output has failed. Replace inline power supply. See the
The CompactFlash memory is
not being accessed.
The CompactFlash memory is
being accessed.
Table 6-1.
Possible Causes and Corrective Actions
Power is not switched on at the router.
Power is not available from source.
Faulty input power wires or connections.
Failed power supply in the router.
Failure in one or more system board components. Contact
Cisco technical support. See the
and Submitting a Service Request"
Normal indication. No action is required.
Normal indication. No action is required.
See the router rebooting and ROM monitor information in
the Cisco IOS Configuration Fundamentals Configuration
Guide for your Cisco IOS software release.
No action is required.
Normal indication. No action is required for inline power
supply.
Optional Inline Power Supply" section on page
Normal indication. No action is required. The
CompactFlash memory card can be removed if the CF LED
remains off.
Normal indication. No action is required.
Caution: Do not remove the CompactFlash memory card
while it is being accessed.
Chapter 6 Troubleshooting
"Obtaining Documentation
section of the Preface.
"Installing the
7-5.
Table 6-2.
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