Cisco Systems CRS-1 manual AC Power Requirements

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Chapter 2 Power and Cooling

AC Power Requirements

Caution Although reverse polarity should not damage the DC power system, you should correct a reverse polarity condition immediately.

AC Power Requirements

An AC-powered line card chassis contains two AC power distribution units (PDUs) and two AC rectifier modules. Each AC PDU is connected to an input AC power source and holds a single 7500-watt AC rectifier. Input AC power enters the PDU and is passed to the rectifier. Here, the input AC power is converted into the 54.5 VDC used to power components in the chassis. Each AC rectifier is field replaceable and has its own circuit breaker.

Two versions of the AC PDU are available to accommodate AC input power in either the Delta or Wye configuration. Each PDU has a different Cisco part number, and ships with an AC power cord that is 14 feet (4.3 m) long.

In addition to the requirements in the “General Power and Grounding Requirements” section on page 2-2, AC input power requirements are as follows:

An AC-powered chassis (Wye or Delta) requires 8,750 watts of AC input power.

Two separate and independent AC power sources are required, one for each PDU. Each PDU should be connected to a different power source to provide 2N power redundancy in case a power source fails.

Each AC power source must provide 3-phase VAC power, and have its own circuit breaker.

AC Delta input:

3-phase, 200 to 240 VAC (phase-to-phase), 50 to 60 Hz.

Input current: 30 A. The PDU is rated for 24-amp service, and accepts AC input of 30 A.

The Delta power cord has a 4-pin NEMA L15-30P plug (3 wire + protective earthing1 [3W+PE]). The power cord is rated for 250 VAC, 30 A, and plugs into a similarly rated NEMA L15-30R locking-type receptacle.

AC Wye input:

3-phase, 200 to 240 VAC (phase-to-neutral), 50 to 60 Hz.

Input current: 16 A (International) or 20 A (North America). The PDU is rated for 14-amp service, and accepts AC input of 16 or 20 A.

The Wye power cord has a 5-pin IEC 60309 plug (3 wire + neutral + protective earthing conductor (ground wire) [3W+N+PE]). The cord is rated for 400 VAC, 16 or 20 A, and plugs into a similarly rated IEC 60309 receptacle.

A grounding-type AC power outlet is required. The PDUs are shipped with AC power cords that have a grounding-type plug. As a safety feature, the plugs fit only a grounding-type AC power outlet.

Cisco CRS-1 Carrier Routing System 8-Slot Line Card Chassis Site Planning Guide

2-6

OL-5802-06

 

 

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Contents Americas Headquarters Page N T E N T S Noise Control Audience Document OrganizationDocument Conventions Related Cisco CRS-1 DocumentationChanges to This Document Revision Date Change SummaryViii Cisco CRS-1 Carrier Routing System Cisco CRS-1 8-Slot Line Card Chassis Front Plim View of the 8-Slot Line Card ChassisChassis Components Chassis Slot Numbers Cisco CRS-1 8-Slot Line Card Chassis Slot Numbers OL-5802-06 Power and Cooling Chassis Power SystemGeneral Power and Grounding Requirements DC Power Requirements DC Input Power and Ground CablesDC Input Power Cable Lug DC Earth Ground Cable Lug AC Power Requirements AC PDU Wiring AC Wye 3-Phase Wiring Supplemental Bonding and Grounding Nebs Bonding and Grounding Points Rear of ChassisChassis Airflow Facility Cooling RequirementsPower and Cooling Facility Cooling Requirements OL-5802-06 Technical and Environmental Specifications Line Card Chassis SpecificationsEquipment Rack Specifications PDUSlot Line Card Chassis Specifications Cisco CRS-1 Carrier Routing System Line Card Chassis Routing System Line Card Chassis Unpacking, Moving, Environmental Specifications Basic Site and Installation Planning Site Planning ConsiderationsTools Required for Installation Equipment Rack Considerations Equipment rack Vertical mounting bracketsAisle Spacing and Maintenance Access Floor Plan Dimensions of the 8-Slot Line Card Chassis Cable Management Power and Cooling RequirementsSystem Console Route Processor Cables Noise Control Cisco Installation ServicesSystem Testing, Certification, and Warranties Site Planning Checklist Site Planning GuidelinesPreliminary Site Survey Preliminary Site SurveySecondary Contact Power Supported Data Interfaces OL-5802-06 Product IDs for the Cisco CRS-1 8-Slot Line Card Chassis CRS-8-PWR-FILTER= Optional MSC, PLIM, SIP, and SPA Product IDs CRS-MSC-IMPEDANCE=SPA-OC192POS-XFP 64 POS/RPR XFP SPA Numerics IN-2 IN-3 IN-4
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CRS-1 specifications

Cisco Systems' Carrier Routing System (CRS-1) is a cutting-edge, high-capacity router designed to meet the demands of service providers and large enterprises. Introduced in the early 2000s, the CRS-1 represents a significant leap forward in routing technology, offering unparalleled performance, scalability, and reliability.

One of the primary features of the CRS-1 is its exceptional scalability. The system is built on a modular architecture that allows for easy upgrades and expansions. This enables service providers to start with a configuration that suits their immediate needs while having the flexibility to expand as traffic demands grow. The CRS-1 supports a wide range of line cards, enabling data, voice, and video to be managed on a single platform, which simplifies network management and reduces operating costs.

The CRS-1 leverages advanced technologies that enable it to deliver impressive performance. With the ability to handle up to 92 terabits per second of throughput, the router is capable of supporting a vast number of connections, making it well-suited for large-scale service providers and data centers. This level of performance is powered by Cisco’s proprietary silicon technology, which optimizes the packet forwarding process and enhances overall efficiency.

Another key characteristic of the CRS-1 is its strong focus on reliability and redundancy. The system is designed with high availability in mind, ensuring that it can continue to operate seamlessly even in the event of hardware failures. Redundant components, such as power supplies and route processors, allow the CRS-1 to maintain its performance and uptime, a critical requirement for mission-critical network operations.

Additionally, the CRS-1 supports a wide variety of protocols and technologies, including Internet Protocol (IP), Multiprotocol Label Switching (MPLS), and various service provider features. This versatility makes it a compelling choice for organizations looking to implement advanced networking capabilities, such as Quality of Service (QoS) and traffic engineering.

In summary, the Cisco Systems CRS-1 stands out as a formidable solution for modern routing needs. Its modular design, exceptional scalability, robust performance, reliability, and support for multiple protocols and services make it an ideal choice for service providers and enterprises seeking to future-proof their networks. As the demand for bandwidth continues to surge, the CRS-1 remains a pivotal component in the evolution of networking infrastructure.