SmartSwitch Router User Reference Manual 191Chapter 13: Hot Swapping Line Cards and Control ModulesWarning : Do not remove the line card unless the Offline LED is lit. Doing so can cause theSSR to crash.2. Loosen the captive screws on each side of the line card.3. Carefully remove the line card from its slot in the SSR chassis.Installing a New Line CardTo install a new line card:1. Slide the line card all the way into the slot, firmly but gently pressing the line cardfully in place to ensure that the pins on the back of the line card are completely seatedin the backplane.Note: Make sure the circuit card (and not the metal plate) is between the cardguides. Check both the upper and lower tracks.2. Tighten the captive screws on each side of the line card to secure it to the chassis.Once the line card is installed, the SSR recognizes and activates it. The Online LEDbutton lights.Hot Swapping One Type of Line Card With AnotherYou can hot swap one type of line card with another type. For example, you can replace a10/100BASE-TX line card with a 1000BASE-SX line card. The SSR can be configured toaccommodate whichever line card is installed in the slot. When one line card is installed,configuration statements for that line card are used; when you remove the line card fromthe slot and replace it with a different type, configuration statements for the new line cardtake effect.To set this up, you include configuration statements for both line cards in the SSRconfiguration file. The SSR determines which line card is installed in the slot and uses theappropriate configuration statements.For example, you may have an SSR with a 10/100BASE-TX line card in slot 7 and want tohot swap it with a 1000BASE-SX line card. If you include statements for both line cards inthe SSR configuration file, the statements for the 1000BASE-SX take effect immediatelyafter you install it in slot 7.Hot Swapping a Secondary Control ModuleIf you have a secondary control module installed on the SSR, you can hot swap it withanother Control Module or line card.Note: You can only hot swap an inactive Control Module. You should never remove theactive Control Module from the SSR. Doing so will crash the system.
