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Cisco CRS 3-Phase AC Power Distribution Unit Installation Guide

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Installation Guide

Table Of Contents

Cisco CRS 3-Phase AC Power Distribution Unit

Documentation and Resources

Document Revision History

Documentation Forum

Obtaining Documentation and Submitting a Service Request

Overview

Cisco CRS PDU Kit for Cisco CRS 8-Slot Line Card Chassis

Cisco CRS PDU Kit for Cisco CRS 16-Slot Line Card Chassis

Cisco CRS PDU Kit for Cisco CRS Fabric Card Chassis

Safety Warnings

General Power and Grounding Requirements

Installing or Removing the PDU Kit

Cisco CRS PDU Kit for Cisco CRS 8-Slot Line Card Chassis

Installing the PDU Kit

Removing the PDU Kit

Installing a Single PDU in a Cisco CRS-8 PDU Kit

Removing a Single PDU from a Cisco CRS-8 PDU Kit

Installing PDU Kit in Rack

Removing PDU Kit from Rack

Installing PDU Kit to Side of Cisco CRS 16-Slot Line Card Chassis

Removing PDU Kit from Side of Cisco CRS 16-Slot Line Card Chassis

Installing PDU Kit to Side of Cisco CRS Fabric Card Chassis

Removing PDU Kit from Side of Chassis

Specifications


Installation Guide

Cisco CRS 3-Phase AC Power Distribution Unit


July 2011

1 Documentation and Resources

Documentation for the Cisco CRS Power Distribution Unit (PDU) is online with the exception of the regulatory compliance and safety information documentation. For a complete listing of Cisco CRS planning, installation, and configuration documents, see the Cisco CRS Carrier Routing System Hardware Documentation Guide.

Document Revision History

The Document Revision History table below records technical changes to this document.

Document Version
Date
Change Summary

OL-23476-03

July 2011

Added technical information and new procedures for installing and removing a Cisco CRS PDU kit on a Cisco CRS fabric card chassis. New AC cord clamp information was added. Minor technical and editorial updates were made.

OL-23476-02

November 2010

This document was updated with technical corrections. Document updates to specifications, and installation and removal procedures.

OL-23476-01

September 2010

First version of this document.


Documentation Forum

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Participate in the Technical Documentation Ideas forum.

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

Subscribe to the What's New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS version 2.0.

2 Overview

This section describes the Cisco CRS Power Distribution Unit (PDU). The PDU converts 3-phase AC input power to single-phase AC output power that connects directly to the rear of the modular configuration AC power shelf.


Note The PDU referred to in this document is different from the fixed configuration PDU.


The AC PDU includes either an AC Delta or AC Wye power interface, and has power input and power output cords entering and exiting the box. The PDU can be installed in a 19-inch rack or other locations, depending on the PDU type, by using chassis mounting brackets.

In this document, single PDU refers to the individual PDU that converts 3-phase AC input power to single-phase AC output power. Cisco product numbers for single PDUs are as follows:

PDU-321-3-Delta—3-phase to single-phase AC Delta PDU, 1 input/3 output

PDU-321-3-Wye—3-phase to single-phase AC Wye PDU, 1 input/3 output

PDU-321-6-Delta—3 phase to single-phase AC Delta PDU, 2 input/6 output

PDU-321-6-Wye—3-phase to single-phase AC Wye PDU, 1 input/6 output

A PDU kit refers to all the components that are required to be installed in a redundant Cisco CRS system. A PDU kit contains 2 single PDUs and any necessary mounting brackets or hardware. When ordering a Cisco CRS system, a PDU kit Cisco product number should be ordered. Cisco product numbers for PDU kits are as follows:

CRS-8-PDU-Delta—Redundant 3-phase to single-phase Delta PDU for Cisco CRS 8-slot line card chassis, 2 input/6 output

CRS-8-PDU-Wye—Redundant 3-phase to single-phase Wye PDU for Cisco CRS 8-slot line card chassis, 2 input/6 output

CRS-16-PDU-Delta—Redundant 3-phase to single-phase Delta PDU for Cisco CRS 16-slot line card chassis, 4 input/12 output

CRS-16-PDU-Wye—Redundant 3-phase to single-phase Wye PDU for Cisco CRS 16-slot line card chassis, 2 input/12 output

CRS-FCC-PDU Delta—Redundant 3-phase to single-phase Delta PDU for Cisco CRS fabric card chassis, 4 input/12 output

CRS-FCC-PDU Wye—Redundant 3-phase to single-phase Wye PDU for Cisco CRS fabric card chassis, 2 input/12 output

Cisco CRS PDU Kit for Cisco CRS 8-Slot Line Card Chassis

This section describes the Cisco CRS PDU kit for the Cisco CRS 8-slot line card chassis. The PDU has power input and power output cords entering and exiting the box. One single PDU is required for each modular configuration AC power shelf installed in the chassis for system redundancy. Each PDU kit consists of two identical single PDUs, either AC Delta (Cisco product number PDU-321-3-Delta) or AC Wye (Cisco product number PDU-321-3-Wye), installed in a 19-inch rack tray (Cisco product number CRS-8-PDU-tray). One PDU kit is required to be installed for system redundancy.


Note In order to maintain a balanced 3-phase power load, three AC power modules (PMs) are required to be installed in a Cisco CRS 8-slot line card chassis AC modular configuration power shelf.


Figure 1 shows the single Delta PDU (Cisco product number PDU-321-3-Delta). The single Wye PDU (Cisco product number PDU-321-3-Wye) is similar.

Figure 1 PDU-321-3-Delta—Front and Rear Views

1

3-phase AC input cord

2

Single-phase AC output cords


Figure 2 shows the Delta PDU kit that converts 3-phase AC input power to single-phase AC output power for the Cisco CRS 8-slot line card chassis.

Figure 2 CRS-8-PDU-Delta Kit—Front and Rear Views

1

Rack mounting brackets

4

Single-phase AC output cords

2

Rack tray (Cisco product number CRS-8-PDU-tray=)

5

Two PDUs (Cisco product number PDU-321-3-Delta)

3

3-phase AC input cords

   

Figure 3 shows the Wye PDU kit that converts 3-phase AC input power to single-phase AC output power for the Cisco CRS 8-slot line card chassis.

Figure 3 CRS-8-PDU-Wye Kit—Front and Rear Views

1

Rack mounting brackets

4

Single-phase AC output cords

2

Rack tray (Cisco product number CRS-8-PDU-tray=)

5

Two PDUs (Cisco product number PDU-321-3-Wye)

3

3-phase AC input cords

   

Cisco CRS PDU Kit for Cisco CRS 16-Slot Line Card Chassis

This section describes the Cisco CRS PDU kit for the Cisco CRS 16-slot line card chassis.

The PDU has power input and power output cords entering and exiting the box. One single PDU is required for each modular configuration AC power shelf installed in the chassis for system redundancy. Each PDU kit includes two single PDUs, either AC Delta (Cisco product number PDU-321-6-Delta) or AC Wye (Cisco product number PDU-321-6-Wye), with 19-inch rack-mounting brackets pre-installed, and chassis mounting brackets for alternative mounting. The left and right chassis mounting brackets are not shipped pre-installed on the PDU. For information on how to install the PDU to the side of the Cisco CRS 16-slot line card chassis, see the "Installing PDU Kit to Side of Cisco CRS 16-Slot Line Card Chassis" section.


Note In order to maintain a balanced 3-phase power load, six AC PMs are required to be installed in a Cisco CRS 16-slot line card chassis or Cisco CRS 16-slot line card chassis AC modular configuration power shelf.


Figure 4 shows the Delta PDU kit that converts 3-phase AC input power to single-phase AC output power and chassis mounting brackets for the Cisco CRS 16-slot line card chassis. For more information, see the "Installing PDU Kit to Side of Cisco CRS 16-Slot Line Card Chassis" section.

Figure 4 CRS-16-PDU-Delta Kit—Front and Rear Views

1

AC Delta PDU (PDU-321-6-Delta) quantity=2, 1 shown

5

Left chassis mounting bracket

2

Removable 19-inch rack mounting brackets

6

Right chassis mounting bracket

3

3-phase AC input cords (permanently attached)

7

M8 hex head bolt and M8 flat washer, two per bracket

4

Single-phase AC output cords (permanently attached)

8

Pan head screw, eight per bracket


Figure 5 shows the Wye PDU kit that converts 3-phase AC input power to single-phase AC output power and chassis mounting brackets for the Cisco CRS 16-slot line card chassis. For more information, see the "Installing PDU Kit to Side of Cisco CRS 16-Slot Line Card Chassis" section.

Figure 5 CRS-16-PDU-Wye Kit—Front and Rear Views

1

AC Wye PDU (PDU-321-6-Wye) quantity=2, 1 shown

5

Left chassis mounting bracket

2

Removable 19-inch rack mounting brackets

6

Right chassis mounting bracket

3

3-phase AC input cord (permanently attached)

7

M8 hex head bolt and M8 flat washer, two per bracket

4

Single-phase AC output cords (permanently attached)

8

Pan head screw, eight per bracket


Cisco CRS PDU Kit for Cisco CRS Fabric Card Chassis

This section describes the Cisco CRS PDU kit for the Cisco CRS fabric card chassis.

The PDU has power input and power output cords entering and exiting the box. One single PDU is required for each modular configuration AC power shelf installed in the chassis for system redundancy. Each PDU kit includes two single PDUs, either AC Delta (Cisco product number PDU-321-6-Delta) or AC Wye (Cisco product number PDU-321-6-Wye), with 19-inch rack-mounting brackets pre-installed, and chassis mounting brackets for alternative mounting. The left and right chassis mounting brackets are not shipped pre-installed on the PDU. For information on how to install the PDU to the side of the Cisco CRS fabric card chassis see the "Installing PDU Kit to Side of Cisco CRS Fabric Card Chassis" section.


Note In order to maintain a balanced 3-phase power load, either three or six AC PMs are required to be installed in a Cisco CRS fabric card chassis AC modular configuration power shelf. If only three AC PMs are required in each power shelf, they must be installed in either slots 0, 1, 2 or slots 3,4,5.


Figure 6 shows the Delta PDU kit that converts 3-phase AC input power to single-phase AC output power and chassis mounting brackets for the Cisco CRS fabric card chassis. For more information, see the "Installing PDU Kit to Side of Cisco CRS Fabric Card Chassis" section.

Figure 6 CRS-FCC-PDU-Delta Kit—Front and Rear Views

1

AC Delta PDU (PDU-321-6-Delta) quantity=2, 1 shown

5

Left chassis mounting bracket

2

Removable 19-inch rack mounting brackets

6

Right chassis mounting bracket

3

3-phase AC input cords (permanently attached)

7

M8 hex head bolt with integrated washer, four per bracket

4

Single-phase AC output cords (permanently attached)

8

Pan head screw, eight per bracket


Figure 7 shows the Wye PDU kit that converts 3-phase AC input power to single-phase AC output power and chassis mounting brackets for the Cisco CRS fabric card chassis. For more information, see the "Installing PDU Kit to Side of Cisco CRS Fabric Card Chassis" section.

Figure 7 CRS-FCC-PDU-Wye Kit—Front and Rear Views

1

AC Wye PDU (PDU-321-6-Wye) quantity=2, 1 shown

5

Left chassis mounting bracket

2

Removable 19-inch rack mounting brackets

6

Right chassis mounting bracket

3

3-phase AC input cord (permanently attached)

7

M8 hex head bolt with integrated washer, four per bracket

4

Single-phase AC output cords (permanently attached)

8

Pan head screw, eight per bracket


3 Safety Warnings

These warnings are translated into several languages in Regulatory Compliance and Safety Information for the Cisco CRS Power Distribution Unit that is shipped with the Cisco CRS PDU.


Warning This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal use. Statement 39



Note In statement 39, host refers to the rack or chassis that the Cisco CRS PDU is mounted to.



Warning This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than:
250 V/60 A—CRS-8-PDU-Delta=
415 V/16 A— CRS-8-PDU-Wye=
250 V/60 A—CRS-16-PDU-Delta=
415 V/32 A— CRS-16-PDU-Wye=
250 V/60 A—CRS-FCC-PDU-Delta=
415 V/32 A— CRS-FCC-PDU-Wye= Statement 1005



Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable. The following guidelines are provided to ensure your safety:
This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.
If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack. Statement 1006



Warning Take care when connecting units to the supply circuit so that wiring is not overloaded. Statement 1018



Warning The plug-socket combination must be accessible at all times, because it serves as the main disconnecting device. Statement 1019



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



Warning This product requires short-circuit (overcurrent) protection, to be provided as part of the building installation. Install only in accordance with national and local wiring regulations. Statement 1045



Warning To prevent the system from overheating, do not operate it in an area that exceeds the maximum recommended ambient temperature of:
40°C (131°F) Statement 1047



Warning Stability hazard. The rack stabilizing mechanism must be in place, or the rack must be bolted to the floor before you slide the unit out for servicing. Failure to stabilize the rack can cause the rack to tip over. Statement 1048


4 General Power and Grounding Requirements

This section describes the power and grounding requirements you must consider when planning the site facilities for the PDU.


Note A certified electrician should review the information in these sections to ensure that the installation site meets these requirements. For larger system configurations, consult a facilities electrical expert to determine the load that the routing system may put on the facility power plant.


Installation of the PDU must follow national and local electrical codes:

In the United States—United States National Fire Protection Association (NFPA) 70 and United States National Electrical Code (NEC)

In Canada—Canadian Electrical Code, part I, CSA C22.1

In other countries—International Electrotechnical Commission (IEC) 60364, parts 1 through 7

Two separate and independent AC power sources are needed to provide 2N redundancy for system power. Each power source requires its own circuit breaker.

Each power source must provide clean power to the site. If necessary, install a power conditioner.

Site must provide short-circuit (over-current) protection for devices.

Proper grounding is required at the site to ensure that equipment is not damaged by lightning and power surges. In addition, a grounding-type AC power outlet is required for AC-powered systems.

Include power requirements for any external terminals and test equipment used with your system when planning for the power for the site.


Note Review the safety warnings in Regulatory Compliance and Safety Information for the Cisco CRS Power Distribution Unit before attempting to install the routing system


5 Installing or Removing the PDU Kit

This section describes how to install an AC Delta or AC Wye PDU kit on the following Cisco CRS chassis types:

Cisco CRS PDU Kit for Cisco CRS 8-Slot Line Card Chassis

Installing PDU Kit in Rack

Installing PDU Kit to Side of Cisco CRS 16-Slot Line Card Chassis

Installing PDU Kit to Side of Cisco CRS Fabric Card Chassis


Note Review the safety warnings in Regulatory Compliance and Safety Information for the Cisco CRS Power Distribution Unit before attempting to install the Cisco CRS PDU.



Caution If the chassis is not properly grounded, refer to Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Installation Guide, Cisco CRS Carrier Routing System 16-Slot Line Card Chassis Installation Guide or Cisco CRS Carrier Routing System Fabric Card Chassis Installation Guide for proper ground bonding instructions.


Caution All field replaceable units (FRUs) and blank covers must be properly installed in the system.

Cisco CRS PDU Kit for Cisco CRS 8-Slot Line Card Chassis

This section describes how to install or remove a PDU kit in the Cisco CRS 8-slot line card chassis rack.

The procedure for installing or removing a PDU kit is the same for the AC Delta and AC Wye PDU. This section contains the following procedures:

Installing the PDU Kit

Removing the PDU Kit

Installing the PDU Kit

This section describes how to install an AC Delta or AC Wye PDU kit in the 19-inch Cisco CRS 8-slot line card chassis rack.


Note Although there are differences between the AC Delta and AC Wye PDU, they are installed in the same manner.



Caution Before you begin this procedure, ensure that all power is disconnected from the Cisco CRS PDU. Remove the PDU input plug(s) from the branch circuit outlet(s).

Before you install the PDU kit, be aware of the following:

If installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient temperature. Therefore, consideration should be given to installing the equipment in an environment compatible with the maximum ambient temperature. See Table 3.

Installation of the equipment in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised.

Mounting of the equipment in the rack should be such that a hazardous condition is not achieved due to uneven mechanical loading.

Consideration should be given to the connection of the equipment to the supply circuit, and to the effect that overloading of the circuits might have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.

Reliable earthing of rack-mounted equipment should be maintained. Pay particular attention to supply connections other than direct connections to the branch circuit (e.g. use of power strips).

Required Tools and Equipment

The following tools are required to install the PDU kit:

Appropriate tool; dependent upon type of rack-mounting screws used

Number 1 x 6 in. Phillips screwdriver

PDU kit

AC Delta PDU kit (Cisco product number CRS-8-PDU-Delta=), or

AC Wye PDU kit (Cisco product number CRS-8-PDU-Wye=)


Note You can use an offset number 1 Phillips screwdriver to tighten the AC cord clamp that was available pre-June 2011, but this is optional. The offset screwdriver is in addition to, not instead of, the straight screwdriver. An offset screwdriver is not required to tighten the AC cord clamp that is available from June 2011 onwards. See Figure 9.



Note Rack-mounting screws are not shipped with the PDU kit. You can use 10-32, 10-24, 12-24, or M5 screws. (M6 and 1/4-20 screws do not fit.)


Steps

To install the PDU kit in the 19-inch rack, perform the following steps:


Step 1 Align the rack-mounting bracket holes on the PDU kit with the holes on the vertical rack posts.

Step 2 Insert and partially tighten the four screws—two on each side—to attach the rack-mounting brackets on the PDU kit to the vertical rack brackets. See Figure 8.

Figure 8 PDU Kit Mounting Holes

Step 3 Use the appropriate tool to fully tighten the screws.

Step 4 Connect the output cords on the PDU to the rear of the Cisco CRS 8-slot line card chassis modular configuration AC power shelf.


Note Each output cord on the PDU has a label that designates into which socket it should be plugged (PM0, PM1, and so on).


Figure 9 Connecting Power Cords to Rear of Modular Configuration AC Power Shelf

1

Cord clamp

3

Screw that secures cord

2

Cord to be inserted into clamp

4

Screwdriver that tightens screw



Note In Figure 9, the cord clamp shown on the left was available until June 2011, and the cord clamp shown on the right is available from June 2011onwards. The location of the screw that secures the cord in the cord clamp is different.


Step 5 Use the number 1 Phillips screwdriver to tighten the screw that clamps the cord in place. See Figure 9.


Note You can use an offset number 1 Phillips screwdriver if there is not sufficient clearance for a straight screwdriver.


Step 6 Plug the PDU AC input plug into the facility power to energize the Cisco CRS 8-slot line card chassis.


What to Do Next

After you have installed the PDU kit, you can power up the power modules and the chassis and put the Cisco CRS 8-line card chassis router into service. See Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Installation Guide for more information.

Removing the PDU Kit

This section describes how to remove an AC Delta or AC Wye PDU kit from the Cisco CRS 8-slot line card chassis rack.


Note Although there are differences between the AC Delta and AC Wye PDU, they are removed in the same manner.



Caution Before you begin this procedure, ensure that all power is disconnected from the Cisco CRS PDU. Remove the PDU input plug(s) from the branch circuit outlet(s).

Required Tools and Equipment

The following tools are required to remove the PDU kit from the Cisco CRS 8-slot line card chassis rack:

Appropriate tool; dependent upon type of rack-mounting screw used

Number 1 x 6 in. Phillips screwdriver


Note You can use an offset number 1 Phillips screwdriver to loosen the AC cord clamp that was available pre-June 2011, but this is optional. The offset screwdriver is in addition to, not instead of, the straight screwdriver. An offset screwdriver is not required to tighten the AC cord clamp that is available from June 2011 onwards. See Figure 10.


Steps

To remove the PDU kit from the 19-inch rack, perform the following steps:


Step 1 To disconnect the PDU output cords from the rear of the Cisco CRS 8-slot line card chassis modular configuration AC power shelf, use the number 1 Phillips screwdriver to loosen the screw that clamps the cord in place and remove the cord. See Figure 10.


Note You can use an offset number 1 Phillips screwdriver if there is not sufficient clearance for a straight screwdriver.


Figure 10 Disconnecting Power Cords from Rear of Modular Configuration AC Power Shelf

1

Cord clamp

3

Screw that secures cord clamp

2

Cord removed from clamp

4

Screwdriver that loosens screw



Note In Figure 10, the cord clamp shown on the left was available until June 2011, and the cord clamp shown on the right is available from June 2011onwards. The location of the screw that secures the cord in the cord clamp is different.


Step 2 Use the appropriate tool to remove the four screws—two on each side—that attach the rack-mounting brackets on the PDU kit to the vertical rack brackets. See Figure 11.

Figure 11 PDU Kit Mounting Holes

Step 3 Carefully remove the PDU kit from the rack.


Installing a Single PDU in a Cisco CRS-8 PDU Kit

This section describes how to install a single AC Delta or AC Wye PDU in the 19-inch rack tray.


Note Although there are differences between the AC Delta and AC Wye PDU, they are installed in the same manner.


Prerequisites


Caution Before you begin this procedure, ensure that power is disconnected from the Cisco CRS PDU being installed. Remove the PDU input plug from the branch circuit outlet.

Required Tools and Equipment

The following tool is required to install a single PDU in the 19-inch rack tray:

Number 1 x 6 in. Phillips screwdriver


Note You can use an offset number 1 Phillips screwdriver to tighten the AC cord clamp that was available pre-June 2011, but this is optional. The offset screwdriver is in addition to, not instead of, the straight screwdriver. An offset screwdriver is not required to tighten the AC cord clamp that is available from June 2011 onwards. See Figure 13.


Steps

To install the single PDU from the 19-inch rack tray, perform the following steps:


Step 1 Position the PDU and associated power cords in the 19-inch rack tray.

Step 2 Use the number 1 Phillips screwdriver to fasten the four panel fasteners (two at front and two at rear) that retain the single PDU in the 19-inch rack tray. Figure 12 shows the panel fasteners on the front of the 19-inch rack tray.

Figure 12 Fastening Front Panel Fasteners that Retain Single PDU in 19-inch Rack Tray

1

Two single PDUs installed in 19-inch tray

3

Four panel fasteners on front of 19-inch rack tray

2

Screwdriver that tightens panel fastener

4

19-inch rack tray


Step 3 Connect the output cords on the PDU being installed to the rear of the Cisco CRS 8-slot line card chassis modular configuration AC power shelf.


Note Each output cord on the PDU has a label that designates into which socket it should be plugged (PM0, PM1, and so on).


Figure 13 Connecting Power Cords to Rear of Modular Configuration AC Power Shelf

1

Cord clamp

3

Screw that secures cord clamp

2

Cord to be inserted into clamp

4

Screwdriver that tightens screw



Note In Figure 13, the cord clamp shown on the left was available until June 2011, and the cord clamp shown on the right is available from June 2011onwards. The location of the screw that secures the cord in the cord clamp is different.


Step 4 Use the number 1 Phillips screwdriver to tighten the screw that clamps the cord in place. See Figure 13.


Note You can use an offset number 1 Phillips screwdriver if there is not sufficient clearance for a straight screwdriver.


Step 5 Plug the PDU AC input plug into the facility power to energize the Cisco CRS 8-slot line card chassis.


Removing a Single PDU from a Cisco CRS-8 PDU Kit

This section describes how to remove a single AC Delta or AC Wye PDU from the 19-inch rack tray.


Note Although there are differences between the AC Delta and AC Wye PDU, they are removed in the same manner.


Prerequisites


Caution Before you begin this procedure, ensure that power is disconnected from the Cisco CRS PDU being replaced. Remove the PDU input plug from the branch circuit outlet.

Required Tools and Equipment

The following tool is required to remove a single PDU from the 19-inch rack tray:

Number 1 x 6 in. Phillips screwdriver


Note You can use an offset number 1 Phillips screwdriver to loosen the AC cord clamp that was available pre-June 2011, but this is optional. The offset screwdriver is in addition to, not instead of, the straight screwdriver. An offset screwdriver is not required to tighten the AC cord clamp that is available from June 2011 onwards. See Figure 14.


Steps

To remove the single PDU from the 19-inch rack tray, perform the following steps:


Step 1 Disconnect the output cords on the PDU being removed from the rear of the Cisco CRS 8-slot line card chassis modular configuration AC power shelf. Use the number 1 Phillips screwdriver to loosen the screw that clamps the cord in place and remove the cord. See Figure 14.


Note You can use an offset number 1 Phillips screwdriver if there is not sufficient clearance for a straight screwdriver.


Figure 14 Disconnecting Power Cords from Rear of Modular Configuration AC Power Shelf

1

Cord clamp

3

Screw that secures cord clamp

2

Cord removed from clamp

4

Screwdriver that loosens screw



Note In Figure 14, the cord clamp shown on the left was available until June 2011, and the cord clamp shown on the right is available from June 2011onwards. The location of the screw that secures the cord in the cord clamp is different.


Step 2 Use the number 1 Phillips screwdriver to unfasten only the four panel fasteners (two on front and two on rear) that retain the single PDU you want to remove in the 19-inch rack tray. Figure 15 shows the panel fasteners on the front of the 19-inch rack tray.

Figure 15 Removing Front Panel Fasteners that Retain Single PDU in 19-inch Rack Tray

1

Two single PDUs installed in 19-inch tray

3

Four panel fasteners on front of 19-inch rack tray

2

Screwdriver that loosens panel fastener

4

19-inch rack tray


Step 3 Remove the PDU and associated power cords from the 19-inch rack tray.


Installing PDU Kit in Rack

This section describes how to install an AC Delta (PDU-321-6-Delta) or AC Wye PDU (PDU-321-6-Wye) in a 19-inch rack.


Note Although there are differences between the AC Delta and AC Wye PDU, they are installed in the same manner.


Prerequisites


Caution Before you begin this procedure, ensure that all power is disconnected from the Cisco CRS PDU. Remove the PDU input plug(s) from the branch circuit outlet(s).

Before you install the PDU, be aware of the following:

If installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient. Therefore, consideration should be given to installing the equipment in an environment compatible with the maximum ambient temperature. See Table 3.

Installation of the equipment in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised.

Mounting of the equipment in the rack should be such that a hazardous condition is not achieved because of uneven mechanical loading.

Consideration should be given to the connection of the equipment to the supply circuit, and to the effect that overloading of the circuits might have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.

Reliable earthing of rack-mounted equipment should be maintained. Particular attention should be given to supply connections other than direct connections to the branch circuit (for example, use of power strips).

Required Tools and Equipment

The following tools are required to install the PDU in a rack:

Appropriate tool, dependent on the type of rack-mounting screw used

Number 1 x 6 in. Phillips screwdriver

PDU kit

AC Delta PDU kit (Cisco product number CRS-16-PDU-Delta=), or

AC Wye PDU kit (Cisco product number CRS-16-PDU-Wye=)


Note Rack mounting screws are not shipped with the PDU kit. Use 10-32, 10-24, 12-24, or M5 screws. (M6 and 1/4-20 screws do not fit.)


Steps

To install the PDU in the 19-inch rack, perform the following steps:


Step 1 Align the rack-mounting bracket holes on the PDU with the holes on the vertical rack posts.

Step 2 Insert and partially tighten the four screws—two on each side—to attach the rack mounting brackets on the PDU to the rack vertical mounting brackets. Figure 16 shows two PDUs being installed in a 19-inch rack.

Figure 16 Installing PDU in Rack

Step 3 Use the appropriate tool to fully tighten the screws.

Step 4 Connect the output cords on the PDU to the rear of the modular configuration AC power shelf on the Cisco CRS 16-slot line card chassis or Cisco CRS fabric card chassis. See Figure 17.


Note Each output cord on the PDU has a label that designates into which socket it should be plugged (PM0, PM1, and so on).


Figure 17 Connecting Power Cords to Rear of Modular Configuration AC Power Shelf

1

Screw that secures the cord clamp

3

Cord to be inserted into clamp

2

Screwdriver tightening screw

   


Note In Figure 17, the cord clamp shown on the left was available until June 2011, and the cord clamp shown on the right is available from June 2011onwards. The location of the screw that secures the cord in the cord clamp is different.


Step 5 Use the number 1 Phillips screwdriver to tighten the screw that clamps the cord in place. See Figure 17.

Step 6 Plug the PDU AC input plug into the facility power to energize the Cisco CRS 16-slot line card chassis or Cisco CRS fabric card chassis.


What to Do Next

After the installation of the PDU is complete, you can power up the power modules and the chassis and put the Cisco CRS 16-slot line card chassis or Cisco CRS fabric card chassis router into service. See Cisco CRS Carrier Routing System 16-Slot Line Card Chassis Installation Guide or Cisco CRS Carrier Routing System Fabric Card Chassis Installation Guide for more information.

Removing PDU Kit from Rack

This section describes how to remove an AC Delta (PDU-321-6-Delta) or AC Wye PDU (PDU-321-6-Wye) from a 19-inch rack.


Note Although there are differences between the AC Delta and AC Wye PDU, they are removed in the same manner.


Prerequisites


Caution Before you begin this procedure, ensure that all power is disconnected from the Cisco CRS PDU. Remove the PDU input plug(s) from the branch circuit outlet(s).

Required Tools and Equipment

The following tools are required to install the PDU:

Appropriate tool, dependent on the type of bolt used to install the PDU

Number 1 x 6 in. Phillips screwdriver

Steps

To remove the PDU from the 19-inch rack, perform the following steps:


Step 1 To disconnect the PDU output cords from the rear of the modular configuration AC power shelf, use the number 1 Phillips screwdriver to loosen the screw that clamps the cord in place and remove the cord. See Figure 18.

Figure 18 Disconnecting power cords from rear of modular configuration AC power shelf

1

Screw that secures the cord clamp

3

Cord removed from clamp

2

Screwdriver to loosen screw

   


Note In Figure 18, the cord clamp shown on the left was available until June 2011, and the cord clamp shown on the right is available from June 2011onwards. The location of the screw that secures the cord in the cord clamp is different.


Step 2 Use the appropriate tool to remove the four screws—two on each side—attaching the rack mounting brackets on the PDU to the rack vertical mounting brackets. See Figure 19

Figure 19 Removing PDU from Rack

Step 3 Carefully remove the PDU from the rack and place on the workstation.


Installing PDU Kit to Side of Cisco CRS 16-Slot Line Card Chassis

This section describes how to install an AC Delta or AC Wye PDU on the side of the Cisco CRS 16-slot line card chassis. This section contains the following procedures:

Installing PDU Kit to Side of Cisco CRS 16-Slot Line Card Chassis

Removing PDU Kit from Side of Cisco CRS 16-Slot Line Card Chassis


Note Although there are differences between the AC Delta and AC Wye PDU, they are installed in the same manner.


One PDU is attached to each side of the Cisco CRS 16-slot line card chassis using a chassis mounting bracket kit (Cisco product number CRS-PDU-BRACKET=). The procedure for installing a PDU kit is the same on both sides of the chassis.

The PDU is shipped with removable 19-inch rack mounting brackets and screws, which are required for conventional mounting in a 19-inch standard rack, see Figure 4 and Figure 5. The rack mounting brackets must be removed before the PDU is mounted to the chassis mounting bracket.

Figure 20 shows the front view of the PDUs installed on the left and right side of the Cisco CRS 16-slot line card chassis.

Figure 20 PDUs Installed on Cisco CRS 16-Slot Line Card Chassis


Note PDU power cords are not shown in Figure 20.


Figure 21 shows the chassis mounting bracket kit (Cisco product number CRS-PDU-BRACKET=) that is used to mount the PDU to the left and right sides of the Cisco CRS 16-slot line card chassis.

Figure 21 Left and Right Chassis Mounting Brackets

1

PDU mounting holes

4

Alignment groove

2

Chassis mounting holes

5

M8 hex head bolt and washer, two per bracket

3

Floor mounting hole

6

Pan head screw, eight per bracket


Prerequisites


Caution Before you begin this procedure, ensure that all power is disconnected from the Cisco CRS PDU. Remove the PDU input plug(s) from the branch circuit outlet(s).

Before you install the PDU, be aware of the following:

Consideration should be given to the connection of the equipment to the supply circuit, and to the effect that overloading of the circuits might have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.

Particular attention should be given to supply connections other than direct connections to the branch circuit (for example, use of power strips).


Note Although there are differences between the left and right chassis mounting brackets, the PDUs are installed on the left and right sides of the Cisco CRS 16-slot line card chassis using the same procedures.


Required Tools and Equipment

The following tools are required to install the PDU on the Cisco CRS 16-slot line card chassis:

Number 1 x 6 in. Phillips screwdriver

M12 6pt. combination wrench

Torque wrench with M12 6pt. socket and rated accuracy at 40 to 50 in-lb (4.52 to 5.65 N-m)

PDU

AC Delta PDU kit (Cisco product number CRS-16-PDU-Delta=), or

AC Wye PDU kit (Cisco product number CRS-16-PDU-Wye=)

Steps

To install the PDU on the side of the chassis, perform the following steps:


Step 1 Using the number 1 Phillips screwdriver, loosen the four flat head screws that attach each rack mounting bracket to the left and right side of the PDU.

Step 2 Remove the rack mounting brackets and screws and set them aside.

Step 3 Slide the PDU into the chassis mounting bracket. Align the screw holes on the PDU with the screw holes on the top of the chassis mounting bracket. See Figure 22.


Note When installing the PDU in the chassis mounting bracket, ensure that PM0 is positioned on top. See Figure 22.


Figure 22 Sliding PDU into Left Chassis Mounting Bracket

1

PDU mounting holes


Step 4 Use the number 1 Phillips screwdriver to tighten the four screws that attach the PDU to the top of the chassis mounting bracket.

Step 5 Turn the chassis mounting bracket and PDU so that the bottom of the PDU is facing upward.

Step 6 Use the number 1 Phillips screwdriver to tighten the four screws that attach the PDU to the bottom of the chassis mounting bracket, as shown in Figure 23.

Figure 23 Attaching Bottom of PDU to Left Chassis Mounting Bracket

Step 7 Align the chassis mounting bracket and PDU with the two chassis mounting holes, as shown in Figure 24.

Figure 24 Attaching Chassis Mounting Bracket and PDU to Left Side of Chassis


Note We recommend that the minimum cable bend radius for the PDU input and output power cords is seven times the power cord diameter.


Step 8 Use the M12 wrench to tighten the two M8 bolts that attach the chassis mounting bracket and PDU to the chassis, as shown in Figure 24. Using the torque wrench, tighten the bolts to the recommended install torque of 40 to 50 in-lb (4.52 to 5.65 N-m).


Note We recommend that you bolt the chassis mounting bracket and PDU to the floor using a 1/2-in. diameter bolt for added stability. This bolt is not shipped with the PDU.


Step 9 Connect the output cords on the PDU to the rear of the Cisco CRS 16-slot line card chassis modular configuration AC power shelf. See Figure 25.


Note Each output cord on the PDU has a label that designates into which socket it should be plugged (PM0, PM1, and so on).


Figure 25 Connecting Power Cords to Rear of Modular Configuration AC Power Shelf

1

Screw that secures the cord clamp

3

Cord to be inserted into clamp

2

Screwdriver tightening screw

   


Note In Figure 25, the cord clamp shown on the left was available until June 2011, and the cord clamp shown on the right is available from June 2011onwards. The location of the screw that secures the cord in the cord clamp is different.


Step 10 Use the number 1 Phillips screwdriver to tighten the screw that clamps the cord in place. See Figure 25.

Step 11 Plug the PDU AC input plug into the facility power to energize the Cisco CRS 16-slot line card chassis.


What to Do Next

After the installation of the PDU is complete, you can power up the power modules and the chassis and put the Cisco CRS 16-slot line card chassis router into service. See Cisco CRS Carrier Routing System 16-Slot Line Card Chassis Installation Guide for more information.

Removing PDU Kit from Side of Cisco CRS 16-Slot Line Card Chassis

This section describes how to remove an AC Delta or AC Wye PDU from the Cisco CRS 16-slot line card chassis.


Note Although there are differences between the AC Delta and AC Wye PDU, they are removed in the same manner.


Prerequisites


Caution Before you begin this procedure, ensure that all power is disconnected from the Cisco CRS PDU. Remove the PDU input plug(s) from the branch circuit outlet(s).

Required Tools and Equipment

The following tools are required to remove the PDU:

Number 1 x 6 in. Phillips screwdriver

M12 6 pt. combination wrench.

Steps


Step 1 To disconnect the PDU output cords from the rear of the Cisco CRS 16-slot line card chassis modular configuration AC power shelf, use the number 1 Phillips screwdriver to loosen the screw that clamps the cord in place and remove the cord. See Figure 26.

Figure 26 Disconnecting Power Cords from Rear of Modular Configuration AC Power Shelf

1

Screw that secures the cord clamp

3

Cord removed from clamp

2

Screwdriver to loosen screw

   


Note In Figure 26, the cord clamp shown on the left was available until June 2011, and the cord clamp shown on the right is available from June 2011onwards. The location of the screw that secures the cord in the cord clamp is different.


Step 2 Remove the bolt that attaches the chassis mounting bracket and PDU to the floor.

Step 3 Use the wrench to loosen the two bolts that attach the chassis mounting bracket and PDU to the side of the chassis. Remove bolts. See Figure 27.

Figure 27 Removing Chassis Mounting Bracket and PDU from Chassis

1

M8 x 1.25 hex mounting bolt (x 2)


Step 4 Place the chassis mounting bracket on the workstation.

Step 5 Turn the chassis mounting bracket and PDU so that the bottom of the PDU is facing upward.

Step 6 Use the number 1 Phillips screwdriver to remove the four screws that attach the PDU to the bottom of the chassis mounting bracket. See Figure 28.

Figure 28 Removing Bottom of PDU from Chassis Mounting Bracket

Step 7 Turn the chassis mounting bracket and PDU so that the top of the PDU is facing upwards.

Step 8 Use the number 1 Phillips screwdriver to remove the four screws that attach the PDU to the top of the chassis mounting bracket.

Step 9 Remove the PDU from the chassis mounting bracket. See Figure 29.

Figure 29 Removing the PDU from the Chassis Mounting Bracket

1

PDU mounting holes



Installing PDU Kit to Side of Cisco CRS Fabric Card Chassis

This section describes how to install an AC Delta or AC Wye PDU on the side of the Cisco CRS fabric card chassis. This section contains the following procedures:

Installing PDU Kit to Side of Cisco CRS Fabric Card Chassis

Removing PDU Kit from Side of Chassis


Note Although there are differences between the AC Delta and AC Wye PDU, they are installed in the same manner.


One PDU is attached to each of the Cisco CRS fabric card chassis using a chassis mounting bracket kit (Cisco product number CRS-FCC-PDU-BKT=). The procedure for installing a PDU kit is the same on both sides of the chassis.

The PDU is shipped with removable 19-inch rack mounting brackets and screws, which are required for conventional mounting in a 19-inch standard rack, see Figure 6 and Figure 7. The rack mounting brackets must be removed before the PDU is mounted to the chassis mounting bracket.

Figure 30 shows the front view of the PDU installed on the right side of the Cisco CRS fabric card chassis.

Figure 30 PDU Installed on Cisco CRS Fabric Card Chassis


Note PDU power cords are not shown in Figure 30.


Figure 31 shows the chassis mounting bracket kit (Cisco product number CRS-FCC-PDU-BKT=) that is used to mount the PDU to the left and right sides of the Cisco CRS fabric card chassis.

Figure 31 Chassis Mounting Bracket Kit

1

PDU mounting holes

4

Alignment groove

2

Chassis mounting holes

5

M8 hex head bolt and integrated washer, four per bracket

3

Floor mounting hole

6

Pan head screw, eight per bracket


Prerequisites


Caution Before you begin this procedure, ensure that all power is disconnected from the Cisco CRS PDU. Remove the PDU input plug(s) from the branch circuit outlet(s).

Before you install the PDU, be aware of the following:

Consideration should be given to the connection of the equipment to the supply circuit, and to the effect that overloading of the circuits might have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.

Particular attention should be given to supply connections other than direct connections to the branch circuit (for example, use of power strips).


Note Although there are differences between the left and right chassis mounting brackets, the PDUs are installed on the left and right sides of the Cisco fabric chassis using the same procedures.


Required Tools and Equipment

The following tools are required to install the PDU on the Cisco CRS fabric card chassis:

Number 1 x 6 in. Phillips screwdriver

M12 6pt. combination wrench

Torque wrench with M12 6 pt. socket and rated accuracy at 40 to 50 in.-lb (4.52 to 5.65 N-m)

PDU kit

AC Delta PDU kit (Cisco product number CRS-FCC-PDU-Delta=), or

AC Wye PDU kit (Cisco product number CRS-FCC-PDU-Wye=)

Steps

To install the PDU on the side of the chassis, perform the following steps:


Step 1 Using the number 1 Phillips screwdriver, loosen the four flat head screws that attach each rack mounting bracket to the left and right side of the PDU.

Step 2 Remove the rack mounting brackets and screws and set them aside.

Step 3 Slide the PDU into the chassis mounting bracket. Align the screw holes on the PDU with the screw holes on the top of the chassis mounting bracket. See Figure 32.


Note When installing the PDU in the chassis mounting bracket, ensure that PM0 is positioned on top. See Figure 32.


Figure 32 Sliding PDU into Chassis Mounting Bracket

1

PDU mounting holes


Step 4 Use the number 1 Phillips screwdriver to tighten the four screws that attach the PDU to the top of the chassis mounting bracket.

Step 5 Turn the chassis mounting bracket and PDU so that the bottom of the PDU is facing upward.

Step 6 Use the number 1 Phillips screwdriver to tighten the four screws that attach the PDU to the bottom of the chassis mounting bracket, as shown in Figure 33.

Figure 33 Attaching Bottom of PDU to Chassis Mounting Bracket

Step 7 Turn the chassis mounting bracket and PDU so that the top of the PDU is facing upward. Align the chassis mounting bracket and PDU with the four chassis mounting holes, as shown in Figure 34.

Figure 34 Attaching Chassis Mounting Bracket and PDU to Side of Chassis


Note We recommend that the minimum cable bend radius for the PDU input and output power cords is seven times the power cord diameter.


Step 8 Use the wrench to tighten the four M8 bolts with integrated washers that attach the chassis mounting bracket and PDU to the chassis, as shown in Figure 34. Using the torque wrench, tighten the bolts to the recommended install torque of 40 to 50 in-lb (4.52 to 5.65 N-m).

Step 9 Connect the output cords on the PDU to the rear of the Cisco CRS fabric card chassis modular configuration AC power shelf. See Figure 35.


Note Each output cord on the PDU has a label that designates into which socket it should be plugged (PM0, PM1, and so on).


Figure 35 Connecting Power Cords to Rear of Modular Configuration AC Power Shelf

1

Screw that secures the cord clamp

3

Cord to be inserted into clamp

2

Screwdriver tightening screw

   


Note In Figure 35, the cord clamp shown on the left was available until June 2011, and the cord clamp shown on the right is available from June 2011onwards. The location of the screw that secures the cord in the cord clamp is different.


Step 10 Use the number 1 Phillips screwdriver to tighten the screw that clamps the cord in place. See Figure 35.

Step 11 Plug the PDU AC input plug into the facility power to energize the Cisco CRS fabric card chassis.


What to Do Next

After the installation of the PDU is complete, you can power up the power modules and the chassis and put the Cisco CRS fabric card chassis router into service. See Cisco CRS Carrier Routing System Fabric Card Chassis Installation Guide for more information.

Removing PDU Kit from Side of Chassis

This section describes how to remove an AC Delta or AC Wye PDU from the Cisco CRS fabric card chassis.


Note Although there are differences between the AC Delta and AC Wye PDU, they are removed in the same manner.


Prerequisites


Caution Before you begin this procedure, ensure that all power is disconnected from the Cisco CRS PDU. Remove the PDU input plug(s) from the branch circuit outlet(s).

Required Tools and Equipment

The following tools are required to remove the PDU:

Number 1 x 6 in. Phillips screwdriver

M12 6 pt. combination wrench.

Steps


Step 1 To disconnect the PDU output cords from the rear of the Cisco CRS fabric card chassis modular configuration AC power shelf, use the number 1 Phillips screwdriver to loosen the screw that clamps the cord in place and remove the cord. See Figure 36.

Figure 36 Disconnecting Power Cords from Rear of Modular Configuration AC Power Shelf

1

Screw that secures the cord clamp

3

Cord removed from clamp

2

Screwdriver to loosen screw

   


Note In Figure 36, the cord clamp shown on the left was available until June 2011, and the cord clamp shown on the right is available from June 2011onwards. The location of the screw that secures the cord in the cord clamp is different.


Step 2 Use the wrench to loosen the four bolts that attach the chassis mounting bracket and PDU to the side of the chassis. Remove bolts. See Figure 37.

Figure 37 Removing Chassis Mounting Bracket and PDU from Chassis

Step 3 Place the chassis mounting bracket on the workstation.

Step 4 Turn the chassis mounting bracket and PDU so that the bottom of the PDU is facing upward.

Step 5 Use the number 1 Phillips screwdriver to remove the four screws that attach the PDU to the bottom of the chassis mounting bracket. See Figure 38.

Figure 38 Removing Screws at Bottom of PDU from Chassis Mounting Bracket

Step 6 Turn the chassis mounting bracket and PDU so that the top of the PDU is facing upwards.

Step 7 Use the number 1 Phillips screwdriver to remove the four screws that attach the PDU to the top of the chassis mounting bracket.

Step 8 Remove the PDU from the chassis mounting bracket. See Figure 39.

Figure 39 Removing the PDU from the Chassis Mounting Bracket

1

PDU mounting holes



6 Specifications

This section describes the specifications for the Cisco CRS Power Distribution Unit.

The requirements for the Cisco CRS PDU are:

Cisco CRS PDU is field retrofittable with Cisco CRS Carrier Router System installation base.

Cisco CRS PDU supports Cisco CRS 8-slot line card chassis, Cisco CRS 16-slot line card chassis, or Cisco CRS fabric card chassis to operate with partial and full power modular capacity.

Cisco CRS PDU supports 2N redundant mode and allows replacement of either of the two redundant PDUs without impacting system traffic.

Table 1 lists the specifications for both types of Cisco CRS PDU available for use with the Cisco CRS 8-slot line card chassis, PDU-321-3-Delta and PDU-321-3-Wye.

Table 1 PDU-321-3-Delta and PDU-321-3-Wye Specifications

Description
Value

Height

3.5 in. (8.9 cm)

Width

8.75 in. (22.2 cm), single PDU
17.5 in. (44.5 cm), including rack tray
19.3 in. (49.0 cm), including rack mounting brackets

Depth

7.0 in. (17.8 cm)

Weight

43 lb. (19 kg), PDU-321-3-Delta, including tray
31 lb. (14 kg), PDU-321-3-Wye, including tray

Input cord length

177 in. (450 cm)

Output cord length

138 in. (350 cm)

PDU-321-3-Delta
3-Phase AC Delta

Input

200 to 240 VAC, 50 to 60 Hz, 27.7 A
Tolerance: +/-10% (180 to 264) VAC, 50 to 60 Hz, 27.7 A

Rated Current

27.7 A

Recommended AC Service

40 A minimum, 60 A maximum dedicated branch circuit

Output

200 to 240 VAC, 50 to 60 Hz, 16 A
Tolerance: +/-10%(180 to 264) VAC, 50 to 60 Hz, 16 A

Input Connection (per single PDU)

One IEC 60309, 250V/60A, 3W+PE (3 wire + protective earthing)1

Output Connection (per single PDU)

Three IEC-320-C21 Connector 90 degree female cords

PDU-321-3-Wye
3-Phase AC Wye

Input

200 to 240 (L-N)/346 to 415 (L-L) VAC, 50 to 60 Hz, 16 A
Tolerance: +/-10% (180 to 264)(L-N)/(311 to 456)(L-L) VAC, 50 to 60 Hz, 16 A

Rated Current

16 A

Recommended AC Service

16 A dedicated branch circuit

Output

200 to 240 VAC, 50 to 60 Hz, 16 A
Tolerance: +/-10%(180 to 264) VAC, 50 to 60 Hz, 16 A

Input Connection (per single PDU)

One IEC 60309, 415V/16A, 3W+N+PE (3 wire + neutral + protective earthing)1

Output Connection Type (per single PDU)

Three IEC-320-C21 Connector 90 degree female cords

1 Protective earthing conductor (ground wire).


Table 2 lists the specifications for both types of Cisco CRS PDU available for use with the Cisco CRS 16-slot line card chassis and Cisco CRS fabric card chassis, PDU-321-6-Delta and PDU-321-6-Wye.

Table 2 PDU-321-6-Delta and PDU-321-6-Wye Specifications

Description
Value

Height

2.0 in. (5.1 cm)

Width

17.5 in. (44.5 cm) single PDU
19.3 in. (49.0 cm) including rack mounting brackets

Depth

6.0 in (15.2 cm)

Weight

77 lb (35 kg) Delta PDU kit for Cisco CRS 16-Slot LCC

51 lb (23 kg) Wye PDU kit for Cisco CRS 16-Slot LCC

86 lb (39 kg) Delta PDU kit for Cisco CRS FCC

60 lb (27 kg) Wye PDU kit for Cisco CRS FCC

Each PDU kit includes two individual PDUs and two chassis-mounting brackets.

Input cord length

177 in. (450 cm)

Output cord length

138 in. (350 cm)

PDU-321-6-Delta

3-Phase AC Delta

Input

200 to 240 VAC, 50 to 60 Hz, 27.7 A
Tolerance: +/-10% (180 to 264) VAC, 50 to 60 Hz, 27.7 A

Rated Current

Two 27.7 A

Recommended AC Service

Two 40 A minimum, two 60 A maximum dedicated branch circuits

Output

200 to 240 VAC, 50 to 60 Hz, 16 A
Tolerance: +/-10%(180 to 264) VAC, 50 to 60 Hz, 16 A

Input Connection (per single PDU)

Two IEC 60309, 250V/60A, 3W+PE (3 wire + protective earthing)1

Output Connection (per single PDU)

Six IEC-320-C21 Connector 90 degree female cords

PDU-321-6-Wye

3-Phase AC Wye

Input

200 to 240 (L-N)/346 to 415 (L-L) VAC, 50 to 60 Hz, 32A
Tolerance: +/-10% (180 to 264)(L-N)/(311 to 456)(L-L) VAC, 50 to 60 Hz, 32A

Rated Current

32 A

Recommended AC Service

32 A dedicated branch circuit

Output

200 to 240 VAC, 50 to 60 Hz, 16 A
Tolerance: +/-10%(180 to 264) VAC, 50 to 60 Hz, 16 A

Input Connection (per single PDU)

One IEC 60309, 415V/32A, 3W+N+PE (3 wire + neutral + protective earthing)1

Output Connection (per single PDU)

Six IEC-320-C21 Connector 90 degree female cords

1 Protective earthing conductor (ground wire).


Table 3 lists the environmental specifications for the Cisco CRS PDU.

Table 3 Cisco CRS PDU Environmental Specifications

Description
Value
Temperature
 

Operating, nominal

41 to 104oF (5 to 40oC)

Nonoperating

40 to 158oF (-40 to 70oC)

Humidity
 

Operating

5 to 85% noncondensing

Nonoperating

5 to 90% noncondensing, short-term

Altitude

197 to 5906 ft. (-60 to 1800 m) at 122oF (50oC), short-term
Up to 13,123 ft. (4000 m) at 104oF (40oC) or below