Allied Telesis AT-SBx81CFC960, Installation Manual

Page: 252 / 324

Chapter 12: Replacing Modules
252 Section II: Installing the Chassis
Note
You should not replace a controller card in a chassis that has two
controller cards while the unit is powered off, especially if you are
replacing a failed card in slot 5. If you replace a failed controller card
while the chassis is powered off, the Ethernet line cards might lose
their configurations if the new controller card is designated as the
active card when you power on the chassis.
2. Remove the failed controller card. Refer to the instructions in this
section.
3. Install the new controller card. For instructions, refer to “Installing the
AT-SBx81CFC960 Controller Fabric Card” on page 128.
To remove a controller card from the chassis, perform the following
procedure:
1. Disconnect the cables from the NET MGMT and Console ports on the
controller card.
2. Remove any SFP+ or stacking transceivers from the SFP+ slots on the
controller card.
3. Use a #2 Phillips-head screwdriver to loosen the two screws on the
faceplate of the card.
4. Carefully pull out the handles of the faceplate to disconnect the
controller card from the connector on the backplane of the chassis.
5. Carefully slide the controller card from the chassis.
Caution
Keep the card level as you slide it out of the chassis. You might
damage the components on the top or bottom of the card if you slide
it out at an angle. Refer to Figure 59 on page 127.
6. Do one of the following:
 For instructions on how to install a new controller card in the
chassis, refer to “Installing the AT-SBx81CFC960 Controller Fabric
Card” on page 128.
 If you do not plan to immediately install another controller card in
the slot, cover the slot with a blank cover. For instructions, refer to
“Installing the Blank Slot Covers” on page 139.
 If you do not plan to immediately install the controller card in
another chassis, continue with this procedure.