Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

 

Reinstalling the T4000 Components in the Chassis

 

After the router is installed in the rack, you reinstall the removed components before cabling, booting, and configuring the router.

The procedures describe how to reinstall components in the chassis, first in the rear and then in the front:

  1. Reinstalling the Rear Fan Tray

  2. Reinstalling the T4000 SCGs

  3. Reinstalling the T4000 Control Boards

  4. Reinstalling the T4000 SIBs

  5. Reinstalling the Power Supplies

  6. Reinstalling the FPCs

  7. Reinstalling T4000 Front Fan Trays

  8. Reinstalling the T4000 Front Cable Management System

Reinstalling the Rear Fan Tray

To install a replacement rear fan tray (see Figure 1):

  1. Grasp the fan tray by its handles, and insert it straight into the chassis.
  2. Tighten the captive screws on the fan tray faceplate to secure it in the chassis, using a Phillips (+) screwdriver, number 2.
Figure 1: Reinstalling the Rear Fan Tray
Reinstalling
the Rear Fan Tray

Reinstalling the T4000 SCGs

To reinstall the SCGs (see Figure 2):

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
  2. Carefully align the sides of the SCG with the guides in the SCG slot.
  3. Grasp the SCG by its handle, and slide it straight into the chassis until it contacts the midplane.
  4. Tighten the captive screws on the corners of the SCG faceplate.
  5. Repeat the procedure to reinstall the remaining SCG.
Figure 2: Reinstalling an SCG
Reinstalling an SCG

Reinstalling the T4000 Control Boards

To reinstall the control boards (see Figure 3):

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
  2. Carefully align the sides of the control boards with the guides inside the chassis.
  3. Slide the control boards into the chassis, carefully ensuring that it is correctly aligned.
  4. Grasp both ejector handles and press them inward to seat the control board.
  5. Tighten the captive screws on the ejector handles, using a Phillips (+) screwdriver, number 2.
  6. Repeat the procedure to reinstall the remaining control board.
Figure 3: Reinstalling an LCC-CB
Reinstalling an LCC-CB

Reinstalling the T4000 SIBs

To reinstall the SIBs (see Figure 4):

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
  2. Place one hand underneath the SIB to support it. With the other hand, hold one of the ejector handles on the SIB faceplate.
  3. Carefully align the sides of the SIB with the guides inside the chassis.
  4. Slide the SIB into the chassis, carefully ensuring that it is correctly aligned.
  5. Grasp both ejector handles and press them inward to seat the SIB.
  6. Tighten the captive screws on the ejector handles.
  7. Repeat the procedure for each of the remaining SIBs.
Figure 4: Reinstalling a T4000 SIB
Reinstalling a T4000 SIB

Reinstalling the Power Supplies

Reinstall the lower power supply first, then the upper power supply. To reinstall the DC power supplies (see Figure 5):

  1. Using both hands, slide the power supply into the chassis until you feel resistance.
  2. Twist the ejector handles at the upper corners of the power supply faceplate clockwise until they stop.
  3. Tighten the captive screws at the lower corners of the power supply faceplate to secure the power supply in the chassis.
  4. Repeat the procedure for the upper power supply.
Figure 5: Reinstalling a Six-Input DC Power Supply
Reinstalling a
Six-Input DC Power Supply

Reinstalling the FPCs

To reinstall FPCs (see Figure 6):

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
  2. Using the list you created when you removed the FPCs, locate the slot in the FPC card cage in which you plan to install the FPC.
  3. Lift the FPC into place and carefully align first the bottom, then the top of the FPC with the guides inside the card cage. Be sure the FPC is right-side up, with the components on the right of the FPC.Caution

    When the FPC is out of the chassis, do not hold it by the ejector handles, bus bars, or edge connectors. They cannot support its weight.

  4. Slide the FPC all the way into the card cage until you feel resistance.
  5. Starting with the ejector handles on the FPC faceplate nearly horizontal, simultaneously turn both ejector handles clockwise to seat the FPC.
  6. Repeat the procedure to reinstall each remaining FPC.
Figure 6: Reinstalling an FPC
Reinstalling an FPC

Reinstalling T4000 Front Fan Trays

To reinstall the front fan trays (see Figure 7 and Figure 8):

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
  2. Grasp one of the fan trays by its handles, and insert it straight into the chassis.
  3. Tighten the captive screw on each side of the fan tray faceplate to secure it in the chassis.
  4. Repeat the procedure to reinstall the remaining fan tray.
Figure 7: Reinstalling an Upper Front Fan Tray
Reinstalling
an Upper Front Fan Tray
Figure 8: Reinstalling a Lower Front Fan Tray
Reinstalling
a Lower Front Fan Tray

Reinstalling the T4000 Front Cable Management System

To reinstall the front cable management system:

  1. Position the front cable management system on the studs on the lower front of the chassis.
  2. Insert the nuts through the holes in the cable management system onto the studs on the chassis.
  3. Using a 3/8-in. nut driver, tighten the nuts securely.