Cisco Systems Cisco XR 12416 manual Blower Module

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Chapter 1 Product Overview

Blower Module

Each blower module contains three variable speed fans and a controller card. The two front cover LEDs provide a visual indication of blower module status (Figure 1-15):

Figure 1-15	Blower Module
	LEDs

129308

•OK (green)—All three fans are operating normally.

•FAIL (red)—The system has detected a fan failure or other fault in the blower module. The fault can be caused by any of the following:

–One or more fans are not operating

–One or more fans are running below speed

–A controller card fault

The blower modules maintain acceptable operating temperatures for the internal components by drawing cool air through a replaceable air filter into the switch fabric card cage and then through the upper and lower card cages. Figure 1-16illustrates the air flow path through the chassis.

	Cisco XR 12416 Router Installation Guide
	Cisco XR 12416 Router Installation Guide
OL-13833-01		1-31
OL-13833-01		1-31

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Contents Physical and Functional Description of Router Product OverviewCisco XR 12416 Router Installation Guide Alarm card Lower card cage Power shelf and power supplies Upper blower moduleAlarm card Upper card cage Air filter door Switch fabric Card cageStandard AC Power Shelf AC and DC Power SubsystemsPower cord Retention clip Standard AC-Input Power SubsystemOptional AC Power Shelf Optional AC-Input Power Subsystem Power cords Optional Power Shelf AC-Input ConnectionsAC Power Supplies Fault TempDC Power Shelf DC-Input Power Shelf A1- A1+ A2- A2+ B2+ B2- B1+ B1 Ground 9identifies the components of a 2400 W DC power supply DC Power SuppliesUpper Card Cage Chassis Card CagesLower Card Cage Switch Fabric Card CageSwitch Fabric Card Functionality Switch Fabric OverviewClock Scheduler Cards Switch Fabric CardsAlarm Cards Alarm Card and Line Card OverviewCutoff switch Pin Audio alarmLine Cards Route ProcessorCisco XR 12416 Router Installation Guide PRP Pcmcia Card Slots and Status LEDs Performance Route Processor Overview12 Port Activity LEDs-Partial Front Panel PRP Ethernet Ports and Status LEDsPRP Auxiliary and Console Ports PRP Reset SwitchProcessor PRP Alphanumeric Message DisplaysType Size Quantity Description Location PRP Memory ComponentsU15 U18 Bank Flash Dram DIMMsPcmcia slot-1 Slot-2 Behind cover PRP Sdram PRP Flash Memory PRP NvramUpper and Lower Cable Management Brackets Blower ModuleBlower Module Air filter Room air Top blower module Air exhaust PlenumProduct Overview Blower Module OL-13833-01