Removing and Replacing Components | 63Removing and Replacing RPMs, Line Cards, or SFM3sWARNING: Do not remove a panel blank unless you are ready to install a line card, RPM, or SFM3 into thatslot. If you remove a card, immediately replace the empty slot with a panel blank. Blanks are required tocontrol airflow and electromagnetic interference.WARNING: Electrostatic discharge (ESD) damage can occur when components are mishandled. Alwayswear an ESD-preventive wrist or foot-heel ground strap when handling RPMs, SFM3s, or line cards. (Connectthe ESD strap to the grounding plug located on the front of the chassis.)WARNING: After you remove the original packaging, place RPMs, SFM3s, and line cards on an antistaticsurface.NOTE: If you operate your E1200 without redundant RPMs, the system enters a software-defined power-down state when you remove the only RPM for replacement.NOTE: Your E1200 system will not function properly with fewer than eight SFM3s.NOTE: If you operate your E1200 without redundant RPMs, the system enters a software-defined power-down state when you remove the only RPM for replacement.NOTE: Your E1200 system will not function properly with fewer than eight SFMs. The line cards will notforward information to a non-operational or absent SFM.NOTE: Use the optical connector insertion/removal tool to insert and remove fiber cables from 1GE cards withsmall form factor ports. A optical Connector insertion/removal tool is shipped with each card that is orderedseparately.You can add, replace, or remove modules without interrupting the system power or system operations.RPMs, line cards, and SFM3s are hot-swappable. The E1200 system generates major alarm events forhigh temperatures (over 75°C) and module failures depending on the module and whether or not it isredundant. Minor alarms are generated for component temperatures over 65°C and 75°C for line cards.SNMP traps are sent for both alarm types. Refer to Chapter B, Alarms for more details.Removing and Replacing line cards or RPMsTo remove and replace E1200 line card or RPM modules:Step Task1 Unplug the network interface cables connected to the line card or RPM.2 Loosen the captive screws and pull the ejector levers simultaneously toward you to disengage the backplaneconnections.3 Slide the card out of the slot and store the cards in the original antistatic packaging.4 If you are immediately installing a replacement card, align the new card with the guide, and gently slide the cardinto the slot until you feel the connectors engage with the chassis backplane.If you are not planning to install a new card immediately, install a blank panel.