Installing RPMs, Line Cards, and SFMs | 297Installing RPMs, Line Cards, and SFMsThis chapter provides instructions to install cards into the E-Series chassis and includes the followingsections:• Install RPMs, Line Cards, and SFMs• Remove RPMs, Line Cards, and SFMsRoute Processor ModulesThe system requires at least one Route Processor Module (RPM), two RPMs provide redundancy.Chassis slots R0 and R1 are RPM slots. They are keyed to fit into these slots and not line card slots toprevent improper installation.You can insert a second RPM into an online system without performance interruption or softwareintervention. A second RPM provides redundant functionality and uninterrupted performance if thesystem transitions from the active RPM to the standby RPM.RPM LEDsTable 7-1 describes the RPM LED states.Table 7-1. RPM LEDsSection Label DescriptionManagement 10/100EthernetL: Green: link is upA: Green: activity on portAlarms Major Red: a critical condition exists, such as a severe over-temperature condition, a fan trayfailure, an over-current condition in a power supply, or an out-of-tolerance voltage.The RPM LEDs are controlled by software which sets the threshold levels for triggering thedifferent stages of alarms.Unlit: no major conditions.Minor Amber: a serious condition exists, such as an over-temperature condition, a single fan failure,or a line card failure. The RPM LEDs are controlled by software, which sets the thresholdlevels for triggering the different stages of alarms.Unlit: no minor alarm conditions.LT Allows you to test the operability of LEDs to verify that they are able to light.Press the LT button to temporarily illuminate the LEDs on the RPM.Flash Green: flash memory card is in the process of a read or write process. Do not remove theflash card when the In Use LED is lit.Unlit: not in use.Primary Green: primaryUnlit: secondary (or standby)