Cisco CRS-1 - Carrier Routing System Router Migration Manual page 62

How to Migrate to a Cisco CRS-3 Carrier Routing System (8-Slot)
Figure 1-10
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1 Status LED
Understanding the Alphanumeric LEDs
At one end of the faceplate, near an ejector lever, a CRS-3 fabric card has two four-digit alphanumeric
LED displays that show a sequence of messages indicating the state of the card. In normal operation, the
LED module should display
Note It is normal for some displayed messages to appear too briefly in the LED display to be read.
Troubleshooting the CRS-3 Fabric Card
If the installed or replaced CRS-3 fabric card fails to operate or power up on installation:
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Use the Status LEDs, located on the CRS-3 fabric card faceplate, to verify the correct installation of the
CRS-3 fabric card:
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Prerequisites
Software Requirements
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Cisco CRS-1 Carrier Routing System to Cisco CRS-3 Carrier Routing System Migration Guide
1-52
Switch Fabric Card Front View (QQ123 Shown)
IOS-XR
Make sure that the card is seated firmly in the Cisco CRS Fabric Card Chassis slot. One easy way
to verify physical installation is to see whether the front faceplate of the CRS-3 fabric card is even
with the fronts of the other cards installed in the card cage.
Check whether the ejector levers are latched and that the captive screws are fastened properly. If you
are uncertain, unlatch the levers, loosen the screws, and attempt to reseat the CRS-3 fabric card.
Examine the Cisco CRS Fabric Card Chassis alarm module to see if there are any active alarm
conditions. (See the section on the alarm module in Cisco CRS Carrier Routing System 8-Slot Line
Card Chassis System Description.)
Examine the Cisco CRS Fabric Card Chassis power shelves to see whether the chassis, as a whole,
is receiving power.
When the CRS-3 fabric card is properly installed, the Status LED turns green. If this LED is off,
verify that the CRS-3 fabric card is installed correctly.
If there is a failure during the board boot sequence, the two four-digit alphanumeric LED displays
indicate the current boot phase to assist you in debugging the board failure.
Cisco IOS XR Software Release 4.0.0.T or later release (Cisco IOS XR Software Release 4.0.2 for
multishelf nodes)
ROMMON 1.54 or later version
Chapter 1 Migrating to a Cisco CRS-3 Carrier Routing System
2 Alphanumeric LEDs
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