Cisco CRS-1 - Carrier Routing System Router Migration Manual page 110
Carrier routing system
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Also See for CRS-1 - Carrier Routing System Router:
- Administration manual (436 pages) ,
- Getting started manual (289 pages) ,
- Troubleshooting manual (264 pages)
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Downgrading your Cisco CRS-3 Carrier Routing System 16-Slot Line Card Chassis Back to a Cisco CRS-1 Carrier Routing
System 16-Slot Line Card Chassis
Remove the impedance carrier or CRS-3 fabric card you are replacing from the designated slot, and set
Step 3
it carefully aside. (See the "Removing an Impedance Carrier" section in the Cisco CRS Carrier Routing
System 16-Slot Line Card Chassis Installation Guide or the "Removing an CRS-3 Fabric Card" section
in the Cisco CRS Carrier Routing System 16-Slot Line Card Chassis Installation Guide.)
Note
Remove the CRS-1 fabric card you are installing from its antistatic packaging.
Step 4
Use the screwdriver to unscrew and remove the sheetmetal cover over the HBMT connectors on the rear
Step 5
of the CRS-1 fabric card, and set it aside.
Remove the caps from the HBMT connectors on the back of the card, and set them carefully aside.
Step 6
Visually inspect the connector on the card before you insert it into the chassis. Do not attempt to install
Step 7
a card with a damaged or dirty connector, as this action may damage the backplane connector or OIM.
Note
Step 8
Grasp the slide assistance arm with one hand and place your other hand under the carrier to support and
guide it into the correct slot. DO NOT LIFT CARDS BY THE SLIDE-ASSISTANCE ARM; lift them
from the bottom, using the slide-assistance arm only as an aid for balance.
Caution
Slide the card halfway into the slot. Avoid touching the card circuitry and any connectors.
Step 9
Pivot both card ejector levers so the openings on the card ejector cams at the top and bottom of the card
Step 10
pass over the tabs on each side of the card cage slot.
Caution
Continue sliding the card into the card cage slot until the openings on the card ejector cams engage the
Step 11
tabs on each side of the card cage slot.
Note
Step 12
To seat the card in the backplane connector, grasp both card ejector levers and pivot them inward toward
the handle in the card carrier until they are flush against the front edge of the card carrier.
Cisco CRS-1 Carrier Routing System to Cisco CRS-3 Carrier Routing System Migration Guide
2-12
Chapter 2
Downgrading Your Cisco CRS-3 Carrier Routing System Router Back to a Cisco CRS-1 Carrier Routing
Remove only one impedance carrier or CRS-3 fabric card and install one CRS-1 fabric card at a
time. Be sure to verify that each CRS-1 fabric card is fully installed and secured before installing
another card.
Rails exist on the upper and lower left edges of the card that align with the slots in the card cage.
When you install a card in the card cage, make sure that you orient the card correctly and align
these rails when sliding the card into the chassis.
A CRS-1 fabric card weighs about 30 lb (14 kg). You should use two hands when handling the
CRS-1 fabric card.
Verify that the openings on the card ejector cams pass over the tabs; otherwise, one or both
ejector levers might bind when you attempt to close the ejector levers, thereby damaging or
breaking one or both ejector levers.
The CRS-1 fabric card has guide pins that make initial contact with the backplane connector as
you slide the card into its slot. After the guide pins make contact, continue pushing on the card
carrier until the card ejector levers begin pivoting forward, toward the handle in the card carrier.
System Router
OL-13669-03
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