Cisco Systems Understanding Power Consumption and Safety for the Cisco ASR 901 Router
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Chapter 1 Introduction

Power Supply

LEDs

The Cisco ASR 901 chassis and interface modules contain LEDs to assist in troubleshooting. For more detailed description of the LEDs, see the “Reading the LEDs, page A-4.

Power Supply

The Cisco ASR 901 router is equipped with an internal -24/-60 volts Direct Current (VDC).

Safety Precautions

Observe the following general safety precautions and recommendations in planning the source power requirements for the Cisco ASR 901 router (for additional safety information, see the “Safety Guidelines” section on page 2-1:

•Check the power at your site before router installation (and periodically after installation) to ensure clean power (free of spikes and noise) is being received.

•Always disconnect the power source and unplug the power cable before working on the router.

•Install proper grounding for the site to avoid damage from lightning and power surges.

Warning To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables. Statement 1021

Warning There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions. Statement 1015

Warning This unit might have more than one power supply connection. All connections must be removed to de-energize the unit. Statement 1028

Table 1-1lists the DC power supply specifications for the Cisco ASR 901 router.

Table 1-1 Cisco ASR 901 Router Power Supply Specifications

Specification

Value

 

 

DC power supply input voltage

-24/-60 VDC

 

 

 

Maximum input current

•

A901-4C-F-D and

 

 

A901-12C-F-D: 2.5A

 

•

A901-4C-FT-D and

 

 

A901-12C-FT-D: 3.0A

 

 

 

Cisco ASR 901 Series Aggregation Services Router Hardware Installation Guide

 

OL-23778-01

1-5

 

 

 

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Contents Cisco Systems, Inc Page Audience Enter a Directory and Determine the Current Directory Time of Day Pinouts OL-23778-01 Revision Date Change Summary Document Revision HistoryConventions ObjectivesAudience OrganizationRelated Documentation Safety WarningsOL-23778-01 Hardware Description IntroductionCisco ASR 901 Router Front View Cisco ASR 901 Router-Front View Cisco ASR 901 Router Ethernet Version Front ViewFan Grounding Point Lug Cisco ASR 901 Router Rear ViewLEDs Power SupplySafety Precautions Specification ValueRTN Pin Connector aDescription Specification Environmental Monitoring Temperature SensorSystem Specifications Pin Connector BInterface Number Location Label Router Interface NumberingRegulatory Compliance OL-23778-01 Safety with Equipment Safety GuidelinesSafety with Electricity Preventing Electrostatic Discharge Damage Site Environment Power Supply ConsiderationsPrerequisites Site PlanningAir Flow Guidelines Method of ProcedureRequired Tools and Equipment Unpacking and Checking the Contents of your ShipmentTask Verified by Installation ChecklistTask Verified by Date Console Port ConsiderationsCreating a Site Log Console Port ConnectionsPreparing to Install the Router Console Port Considerations OL-23778-01 Network Modules Installing the Cisco ASR 901 Mobile Wireless RouterMounting the Cisco ASR 901 Router Rack-Mounting Configuration GuidelinesMounting the Cisco ASR 901 Router in a Rack Attaching the Rack-Mounting BracketsRack-Mounting Brackets section on Attaching the Cable GuidesGrounding the Cisco ASR 901 Router Connecting the Chassis Ground and PowerGrounding Point Stripping a Ground Wire Power Connection Compliance6-Pin Terminal Block Wiring the DC-Input Power SourceInstalling SFP Modules Installing and Removing SFP ModulesRemoving SFP Modules Installing an SFP Module into an SFP Module SlotConnecting the Console Port Connecting CablesConsole Port Types of RJ-45 CablesConnecting the Network Cables Connecting Gigabit Ethernet Interface CablesConnecting T1 and E1 Interface Cables Connecting SFP Cables Connecting Cables to the Bits InterfaceConnecting GPS Cables Dressing Router Cables Powering On the RouterConnecting to Alarm Port Connecting to the Management Ethernet PortInterpreting Front-Panel LEDs Checklist for Power UpPower-On Procedure Formatting Procedures for Flash MemoryFile and Directory Procedures Displaying Contents of the Flash MemoryCopying Files Deleting Files from the Flash Memory Displaying File ContentEnter a Directory and Determine the Current Directory What to Do After Installing the HardwareOL-23778-01 Problem Solving TroubleshootingTroubleshooting the Power and Cooling Systems Environmental Reporting FeaturesSymptom Possible Cause Corrective Action Information Packet publication Troubleshooting Cables, and ConnectionsSystem LED Reading the LEDsChassis LEDs Copper GE from Quad combo PHY ports contain Two Leds eachColor/State Description two LEDs for each T1/E1 port T1/E1 Interface LEDsSFP Ethernet Interface LEDs RJ-45 Ethernet Interface LEDsOL-23778-01 Gigabit Ethernet Connector Pinouts Cable SpecificationsSFP Port Pinouts and Cable Specifications Pin FE Signal GE SignalT1/E1 Port Pinouts Console Port Signals and Pinouts Console Port Signals and PinoutsPin Signal Name Direction Description RJ-45-to-DB-9 Terminal Adapter Console Pin Signal Name HP Pins Direction DescriptionTerminal Adapter Device Signal RJ-45 Pin DB-25 Pin Identifying a Rollover CableConsole RJ-45-to-DB-25 Port DTE Bits Port Pinouts Time of Day PinoutsGPS Port Pinouts 10 Mhz Alarm Port PinoutsPin Signal Name Description Management Ethernet Port PinoutsRxDP RxDN TxDP Not connected TxDN Site Log Initials DateNumerics IN-2 IN-3 IN-4

ASR 901 specifications

Cisco Systems ASR 901 is an advanced aggregation services router that is designed to meet the needs of service providers and enterprise networks. It offers a versatile platform suitable for various deployment scenarios ranging from mobile backhaul and broadband aggregation to IP edge routing. The ASR 901 is known for its compact size, energy efficiency, and robust performance, making it a preferred choice for operators looking to enhance their network infrastructure.

One of the main features of the Cisco ASR 901 is its small form factor, which facilitates installation in space-constrained environments. Its design allows for easy deployment in both indoor and outdoor settings, making it ideal for applications such as cell site backhaul and remote locations. The router supports a wide range of interfaces, including Ethernet and T1/E1, providing flexibility in connecting different network types.

The ASR 901 is built on Cisco's IOS XR software, ensuring a highly reliable and secure operating environment. This software is known for its scalability and robustness, providing operators with the ability to support large numbers of subscribers and high traffic volumes. The router also supports system redundancy features, ensuring continuous service availability and minimizing downtime.

In terms of performance, the Cisco ASR 901 delivers high throughput and low latency, which are crucial for delivering quality services like voice, video, and data. With its support for advanced network technologies such as MPLS and IPv6, the ASR 901 can effectively manage complex networking requirements while accommodating future growth.

Security is also a key consideration with the ASR 901. It includes features such as advanced encryption, access control lists, and intrusion prevention systems, aimed at protecting the integrity of network communications. Moreover, its support for Virtual LAN (VLAN) tagging and Quality of Service (QoS) mechanisms allows for efficient traffic management and prioritization, ensuring that critical applications receive the necessary bandwidth.

Furthermore, Cisco provides comprehensive management tools for the ASR 901, allowing network administrators to easily monitor and configure the router. Features like SNMP and NetFlow enable operators to gain insights into network performance and usage patterns, facilitating proactive management of their environments.

Overall, the Cisco Systems ASR 901 stands out as a powerful and flexible router, designed to meet the evolving demands of modern networks. Its combination of compact design, scalability, and advanced features positions it as an ideal solution for service providers and enterprises seeking reliable and efficient network solutions.
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