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Cisco Systems 12406 series, 12006 series manual Alarm Output Function, Alarm Card Status, 1-36

Models: 12006 series 12406 series

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Alarm Output Function

Chapter 1 Product Overview

Line Cards

Alarm Output Function

The alarm output function consists of a group of relays, LEDs, and their associated drivers connected to an output port on the MBus module.

The alarm output function is controlled by the software on the RP. When a signal is received from the RP, the MBus module on the alarm card activates specific relays to signal an alarm condition. There are three alarm condition severity levels: critical, major, and minor. The critical, major, and minor LEDs are paired for redundancy to protect against a single failed LED.

Note Alarm cards for some Cisco 12000 series routers have both audible and visible alarm indicators. The alarm card for the Cisco 12006 and Cisco 12406 routers provides only visible alarm indicators as local alerts to unusual conditions in the router.

The IOS software running on the RP determines whether a given alarm condition is a critical, major, or minor alarm. Typing the show commands sh gsr table and sh env all will give you the table of limits and current readings for the LEDs.

Clock and Scheduler Card and Switch Fabric Card Status

The alarm card provides OK and FAIL indications for all clock and scheduler cards and switch fabric cards in the system. Redundant signals from the fabric cards are brought out to the LEDs on each alarm card. The alarm card does not control how these LEDs are used.

The MBus auxiliary power supply consists of a 50W DC-DC power supply and some current-sharing circuitry. Because the alarm card itself is powered by this supply, the on-board MBus module can report problems with the supply only when the redundant alarm card is in the chassis and providing MBus power.

Alarm Card Status

The ENABLED/FAIL pair of LEDs labeled MBUS indicate the status of the alarm card. The green ENABLED LED indicates that the MBus module on the alarm card is operating properly. The yellow FAIL LED indicates that the alarm card has detected an error in itself or with the MBus power supply.

	Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
1-36	OL-11497-03

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Cisco Systems 12406 series manual Alarm Output Function, Clock and Scheduler Card and Switch Fabric Card Status, 1-36

Contents

Introduction C H A P T E RProduct Overview Product Description Line card slots five Cisco 12006 and Cisco 12406 routers have the following key features All power modules and other field replaceable units FRUs, except for the air blower module and the power distribution unit PDU, can be removed from the front of the chassis Blower module Blower module LEDs Blower module handle Chassis, page Multigigabit Crossbar Switch Fabric, page Maintenance Bus, page Route Processors, page Line Cards, pageAlarm Cards, page Power Subsystems, page Blower Module, page Physical and Functional DescriptionSwitch Fabric Card Slots Alarm Card SlotsChassis Backplane Power CoolingMultigigabit Crossbar Switch Fabric Switch Fabric Card Types1-10 Nonredundant and Redundant System Configurations 1-11Chapter 1 Product Overview Multigigabit Crossbar Switch Fabric OL-11497-03Switch Fabric Switching Capacity and Router Type Switch Fabric Redundancy1-12 Maintenance Bus Power-Up/Down ControlDevice Discovery 1-13Diagnostics Environmental Monitoring and AlarmsCode Download 1-14Route Processors Route Processor Functions1-15 Route Processor Types Gigabit Route ProcessorGigabit Route Processor, page Performance Route Processor, page 1-161-17 Sensors-Air-temperature sensors for environmental monitoring1-18 Chapter 1 Product Overview Route ProcessorsGRP Layout LED displaysGRP Memory Components DRAMType SizeSRAM NVRAMFlash Memory Total DRAMSystem Status LEDs 1-21Figure 1-6 GRP LEDs Partial Front Panel Soft Reset Switch 1-22PCMCIA Slots Asynchronous Serial PortsPCMCIA Slot 0 Bottom PCMCIA Slot 1 TopEthernet Port 1-24Performance Route Processor 1-25Figure 1-8 Performance Route Processor Front View 1-26 The Cisco IOS software images are stored in Flash memory. Two types of Flash memory ship with the PRP1-27 Backplane connectorPRP Memory Components 1-28Type SizeSDRAM 1-29SRAM NVRAMFlash Disk Size Product Number1-30 System Status LEDs1-31 Soft Reset SwitchFlash Disk Slots Ethernet Ports1-32 The PRP includes two Flash disk PCMCIA slots. Either slot can support an ATA Flash disk or a Type 1 or Type 2 linear Flash memory card. The PRP ships by default with one 64-MB ATA Flash diskLine Cards 1-331-34 Figure 1-10 Sample Line CardsChapter 1 Product Overview Line CardsAlarm Cards 1-35ALARM Alarm Output Function Clock and Scheduler Card and Switch Fabric Card StatusAlarm Card Status 1-36Power Subsystems Power Source MonitoringAlarm Relay Contact Connector AC Power Subsystem, page DC Power Subsystem, pageAC Power Subsystem AC PDU1-38 1-39 Captive screwAC-Input Power Supply 1-401-41 An AC-input power supply shown in Figure 1-13 has the following featuresDC Power Subsystem DC PDULED Label Function1-43 Figure 1-14 DC Power Distribution UnitPOWER A DC-Input Power Entry Module 1-44POWER A Chapter 1 Product Overview Power Subsystems1-45 Figure 1-16 DC-Input Power Entry ModuleMISWIRE Color 1-46DC-input PEM LED Indicators LED LabelPower Distribution Blower Module1-47 1-48 Top viewFigure 1-17 Internal Air Flow Top View Air Filters 1-49Figure 1-18 Air Filter Locations Cable-Management System 1-501-51 Figure 1-19 Chassis Cable-Management SystemCISCO 12000 SERIES Technical Specifications Field-Replaceable Units1-52