Cisco Systems Mounting the Cisco ASR 901 10G Router, Rack-Mounting Configuration Guidelines

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Chapter 3 Installing the Cisco ASR 901 10G Router

Mounting the Cisco ASR 901 10G Router

Mounting the Cisco ASR 901 10G Router

Note The Cisco ASR 901 10G router is qualified only for horizontal orientation. You should use additional safety measures for vertical orientation.

Each Cisco ASR 901 10G router includes rack-mounting brackets. Using the rack-mounting brackets, you can mount the Cisco ASR 901 10G router in a 19-inch, 23-inch, or an ETSI rack that conforms to the EIA-310-D specification.

Using the two rack-mounting brackets for mounting, you can recess Cisco ASR 901 10G router in the equipment rack. This arrangement provides extra space in front of the router for the cables and allows you to close the doors of racks equipped with front-close doors.

To attach or replace the rack-mounting brackets, see the “Attaching Brackets to the Router” section on page 3-3.

The rack-mounting brackets are slotted to allow the router to be mounted in racks with EIA 1.25-inch (3.175-cm) or WECO 1.0-inch (2.54-cm) hole spacing. When installed in the rack, the

Cisco ASR 901 10G router requires one EIA 1.75-inch (4.4-cm) vertical mounting space (or 1 rack unit [RU]) for mounting (see the “Mounting the Cisco ASR 901 10G Router in a Rack” section on page 3-7).

Caution Allow clearance on either side of the router for cooling air to be drawn in through the right side and circulated through the chassis and out the three-fan exhaust ports mounted on the other side of chassis.

Rack-Mounting Configuration Guidelines

Follow these guidelines to configure the equipment rack:

•When mounting the router to an equipment rack, ensure that the rack is bolted to the floor.

•Because you may install more than one router into the rack, ensure that the weight of all of the routers installed does not make the rack unstable.

Caution Some equipment racks are also secured to ceiling brackets, if necessary, due to the weight of the equipment in the rack. Make sure that the rack you use to install the routers is secured to the building structure.

•As mentioned in the “Air Flow Guidelines” section on page 2-5, maintain a 6-inch (15.24-cm) clearance on each side of the router to ensure adequate air intake and exhaust.

•Avoid installing the routers in an overly congested rack. Air flowing to or from other routers in the rack might interfere with the normal flow of cooling air through the routers, increasing the potential for overtemperature conditions within the routers.

•Allow at least 19 inches (48.7 cm) of clearance at the front and rear of the rack for router maintenance.

•Follow your local practices for cable management. Ensure that cables to and from the routers do not impede access to perform equipment maintenance or upgrades.

To install the switch in a 19-inch, 23-inch, or a European Telecommunications Standards Institute (ETSI) rack, follow these instructions (The ETSI racks require optional mounting hardware):

Cisco ASR 901 10G Series Aggregation Services Router Hardware Installation Guide

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Contents Cisco Systems, Inc Page N T E N T S Site Environment Formatting Flash Memory as a DOS File System Alarm Port Pinouts B-8 Document Revision History Revision Date Change SummaryOrganization ObjectivesAudience ConventionsSafety Warnings Related DocumentationOL-28105-02 Introduction Hardware DescriptionCisco ASR 901 10G Router-Front View of TDM Version Cisco ASR 901 10G Router-Front View of Ethernet Version Cisco ASR 901 10G Router-Rear View Cisco ASR 901 Router-Front View of Ethernet VersionSafety Precautions Power SupplyLEDs Specification Value Cisco ASR 901 10G Router AC Power Supply Specifications Environmental Monitoring Temperature Sensor Pin Connector a Connector BDescription Specification System SpecificationsRouter Interface Numbering Cisco ASR 901 10G Router Regulatory Compliance Interface Number Location LabelChapter Safety Guidelines Safety with EquipmentSafety with Electricity Preventing Electrostatic Discharge Damage Site Planning Power Supply ConsiderationsPrerequisites Site EnvironmentMethod of Procedure Air Flow GuidelinesUnpacking and Checking the Contents of your Shipment Required Tools and EquipmentInstallation Checklist Task Verified byConsole Port Connections Console Port ConsiderationsCreating a Site Log Task Verified by DatePreparing to Install the Router Console Port Considerations OL-28105-02 Installing the Cisco ASR 901 10G Router Network ModulesRack-Mounting Configuration Guidelines Mounting the Cisco ASR 901 10G RouterAttaching Brackets to the Router Rack-Mounting BracketsAttaching Brackets for 19-Inch Racks Attaching Brackets for 23-Inch Racks Attaching Brackets for Etsi Racks Mounting the Cisco ASR 901 10G Router in a Rack Wall-MountingAttaching Brackets for Wall-Mounting Mounting the Router on a WallUser-supplied screws Connecting the Chassis Ground and Power Grounding the Cisco ASR 901 10G RouterStripping a Ground Wire Power Connection Compliance Wiring the DC-Input Power Source Installing the DC Power Cord Retainer 10 3-Pin Terminal BlockDC power cord Installing the AC Power Cord Retainer 13 Inserting the Retainer through the Lanced LoopSleeve for thin power cords AC power cord Installing and Removing SFP Modules Installing SFP Modules18 SFP Module with a Bale-Clasp Latch Removing SFP Modules Types of RJ-45 Cables Connecting CablesConnecting the Console Port Console PortConnecting Gigabit Ethernet Interface Cables Connecting the Network CablesConnecting T1 and E1 Interface Cables Connecting Cables to the Bits Interface Connecting SFP CablesConnecting GPS Cables Connecting to the Management Ethernet Port Connecting to Alarm PortDressing Router Cables Power-On Procedure Powering on the RouterChecklist for Power on Interpreting Front-Panel LEDsFormatting Flash Memory as a DOS File System Formatting Procedures for Flash MemoryFile and Directory Procedures Copying FilesDisplaying Contents of the Flash Memory Deleting Files from the Flash MemoryDisplaying File Content Enter a Directory and Determine the Current DirectoryWhat to Do After Installing the Hardware Troubleshooting Problem SolvingEnvironmental Reporting Features Troubleshooting the Power and Cooling SystemsSymptom Possible Cause Corrective Action Troubleshooting Cables and Connections Information Packet publicationChassis LEDs Reading the LEDsColor/State Location Description 10G SFP+ Ethernet Interface LEDs T1/E1 Interface LEDsSFP Ethernet Interface LEDs Color/State Description two LEDs for each T1/E1 portRJ-45 Ethernet Interface LEDs Cable Specifications Gigabit Ethernet Connector PinoutsPin FE Signal GE Signal SFP and SFP+ Port Pinouts and Cable SpecificationsT1/E1 Port Pinouts Console Port Signals and Pinouts Pin Signal Name Direction DescriptionPin Signal Name HP Pins Direction Description Console Port Signals and PinoutsRJ-45-to-DB-9 Terminal Adapter Console Identifying a Rollover Cable Terminal Adapter Device Signal RJ-45 Pin DB-25 PinConsole RJ-45-to-DB-25 Port DTE Bits Port Pinouts Time of Day PinoutsGPS Port Pinouts 10 MhzAlarm Port Pinouts Pin Signal Name DescriptionManagement Ethernet Port Pinouts Auxiliary PortOL-28105-02 Site Log Date InitialsNumerics IN-2 IN-3 IN-4
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