• Supported Platforms
• T640 Routers

• Related Topics
• T640 Switch Interface Boards (SIBs) Description
• Maintaining the T640 SIBs
• Upgrading to a T640 Standard SIB Version B

Installing a T640 Standard SIB or Standard SIB Version B

To install a SIB into the rear of the chassis (see Figure 1):

1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis. For more information about ESD, see T640 Preventing Electrostatic Discharge Damage.
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. Press the offline/online button until the green OK LED blinks to bring the SIB online.
8. Check the LEDs on the SIB faceplate to verify that it is functioning normally:
   • The green OK LED should light steadily a few minutes after the SIB is installed.
   • If the FAIL LED is lit steadily, remove and install the SIB again (see Removing a T640-SIB and Installing a T640-SIB). If the FAIL LED still lights steadily, the SIB is not functioning properly. Contact your customer support representative.
9. Check the status of the SIB. Issue the following CLI command:
   
   

   user@host> show chassis environment sib