Cisco CRS-1 - Carrier Routing System Router Migration Manual page 129

Chapter 2 Downgrading Your Cisco CRS-3 Carrier Routing System Router Back to a Cisco CRS-1 Carrier Routing
System Router
Caution
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 8-Slot Line Card Chassis Installation Guide or the "Removing a CRS-3 Fabric Card" section in
the Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Installation Guide.)
Note
Step 4 Remove the CRS-1 fabric card you are installing from its antistatic packaging.
Step 5 Use the screwdriver to unscrew and remove the sheetmetal cover over the HBMT connectors on the rear
of the CRS-1 fabric card, and set it aside.
Step 6 Remove the caps from the HBMT connectors on the back of the card, and set them carefully aside.
Step 7 Visually inspect the connector on the card before you insert it into the chassis. Do not attempt to install
a card with a damaged or dirty connector, as this action may damage the backplane connector or OIM.
Note
Grasp the slide assistance arm with one hand and place your other hand under the carrier to support and
Step 8
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
Step 11 Continue sliding the card into the card cage slot until the openings on the card ejector cams engage the
tabs on each side of the card cage slot.
OL-13669-03
Downgrading your Cisco CRS-3 Carrier Routing System 8-Slot Line Card Chassis Back to a Cisco CRS-1 Carrier
To prevent ESD damage, handle a CRS-1 fabric card by its ejector levers, the CRS-1 fabric
card carrier edges, or the slide-assistance arm only. Do not touch any of the electrical
components, pins, and circuitry.
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.
Cisco CRS-1 Carrier Routing System to Cisco CRS-3 Carrier Routing System Migration Guide
Routing System 8-Slot Line Card Chassis
2-31