Cisco cBR Series Hardware Installation Manual page 232

Removing the DOCSIS MAC Interface Line Card from the Cisco cBR Chassis
Before you begin
• Attach an ESD-preventive wrist strap to your wrist and connect the other end to the grounding lug
• Be aware of the weight and size of the equipment. Handle it with care.
• Before removing an interface line card, ensure that one of the following cards is available for immediate
Required Tools and Equipments
• ESD-preventive wrist strap
• 3/16" flat-blade torque screwdriver
• Antistatic bag
Step 1
Loosen the captive screws on the appropriate slot using a 3/16" flat-blade torque screwdriver until the red bands are
visible on the captive screws.
Step 2
Pull the spring-loaded ejectors on the card until they release and are perpendicular to the faceplate. This disengages the
card from the chassis.
Figure 147: Opening Spring-loaded Ejectors on the Interface Card
Step 3
Carefully slide the card out of its slot applying even pressure using both your hands.
Cisco Converged Broadband Routers Hardware Installation Guide
224
connected to the chassis.
replacement in the chassis:
• replacement DOCSIS MAC interface line card
• line card blank
Caution After removing a line card or a line card blank from an operational chassis, install
the replacement line card or line card blank in the chassis within three minutes
to avoid critical thermal alarms relating to overheating of individual components.
Maintaining the Interface Cards in the Cisco cBR Chassis