Cisco cBR Series Hardware Installation Manual page 213

Maintaining the Supervisor in the Cisco cBR Chassis
Before you begin
Caution
• In a Cisco cBR with 1+1 Supervisor redundancy, removing the active Supervisor Card or Supervisor
• In a Cisco cBR with 1+1 Supervisor redundancy, removing the standby Supervisor Card or Supervisor
• In a Cisco cBR without Supervisor redundancy, removing the Supervisor Card or Supervisor PIC results
• Attach an ESD-preventive wrist strap to your wrist and connect the other end to the grounding lug
• Disconnect all the cables from the Supervisor PIC.
• Be aware of the weight and size of the equipment. Handle it with care.
• Ensure that a replacement Supervisor PIC or a blank PIC is readily available to replace the removed
Restrictions
• The Supervisor Card does not power up if the Supervisor PIC is not present during powering up of the
Required Tools and Equipment
• ESD-preventive wrist strap
• 3/16" flat-blade screwdriver
• Antistatic bag
Step 1
Loosen the four captive screws on the PIC using a 3/16" flat-blade screwdriver.
Step 2 Pull the ejector levers on the PIC to disengage the midplane connectors.
PIC results in switchover.
PIC may result in limited packet loss in the active-active backhaul configuration.
in complete loss of service.
connected to the chassis.
Supervisor PIC or blank PIC in an operational chassis.
Caution After removing the Supervisor PIC or blank PIC from an operational chassis,
install the replacement Supervisor PIC or blank PIC in the chassis within 3 minutes
to prevent the chassis from shutting down due to possible overheating of some
components.
chassis.
Removing the Supervisor PIC from the Cisco cBR Chassis
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205