Cisco ASA5500-HW Installation Guide - Page 16

Alarm LED Chapter 1 ASA Chassis Overview Alarm LED The ASA 5500-X series chassis perform autonomous environment monitoring to poll all external sensors and monitor operating conditions. In the event of damage to certain internal components or surpassed temperature thresholds, the system activates an alarm LED to notify you of a critical condition. For example, the alarm LED is activated by firmware in the event of various critical over-voltage and over-temperature conditions, as well as when the ASA has missing or unrecognized internal chip components. When the alarm LED lights, you can find details about the system condition from the system message that appears on the console or by entering the show environment or show controller pci command. ASA 5500-X I/O Cards The Cisco ASA 5500-X Series 6-port Gigabit Ethernet interface cards extend the I/O capabilities of the ASA 5525-X, ASA 5545-X, and ASA 5555-X models by providing additional Gigabit Ethernet ports. The I/O cards provide the following benefits: • Segmentation of network traffic into separate security zones • Fiber optic cable connectivity for communicating over long distances • Load sharing of traffic and protection against link failure by using EtherChannel • Support for Jumbo Ethernet frames of up to 9000 bytes • Protection for Active/Active failover and of full-mesh firewall deployments against cable failure For information about installing an I/O card in your ASA, see Chapter 4, "Maintenance and Upgrade Procedures." ASA Chassis Panels This section describes the front and rear ASA panels, and it includes the following topics: • Front Panel LEDs, page 1-5 • Rear Panel LEDs, page 1-8 • Rear Panel Ports, page 1-9 Cisco ASA 5500-X Series Hardware Installation Guide 1-4