Cisco CRS Series Installation Manual

Installing Power Components

This chapter provides instructions on how to install Cisco CRS Enhanced 16-Slot Line Card Chassis power
components.

This chapter presents the following topics:

Power Systems Overview, page 1

•

How to Install Power Components, page 9

•

Power Up and Power Down a Chassis, page 50

•

Power Systems Overview

The chassis power system provides power to chassis components and is made up of two AC or DC power
shelves that contain AC or DC power modules (PMs) and alarm modules.

The AC power system requires single-phase AC input power to the power shelves. If you have 3-phase AC
Delta or AC Wye at your equipment, a Cisco CRS power distribution unit (PDU) will be required to convert
3-phase AC input power to single-phase AC input power for the power shelf. The power system also includes
SNMP MIBS and XML support.

Note

In the AC power system, PDU refers to the Cisco CRS PDU which is required to convert 3-phase AC-Wye
or AC-Delta input power to single-phase AC input power for the AC power shelf. For further information
and installation instructions, refer to the Cisco CRS 3-Phase AC Power Distribution Unit Installation

Guide .

This section contains the following topics:

Basic Chassis Power Details

The Cisco CRS Series Enhanced 16-slot Line Card Chassis can be configured with either an AC-input power
system or a DC-input power system. Site power requirements differ, depending on the source voltage used.
Follow these precautions and recommendations when planning power connections to the router:

Check the power at your site before installation to ensure that you are receiving clean power. Install a

•

power conditioner, if necessary.

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Bonding and Grounding Guidelines

Install proper grounding to avoid damage from lightning and power surges.

•

The Cisco CRS Series Enhanced 16-slot Line Card Chassis requires that at least one power shelf and its
components be installed to operate properly; however, if you install only one power shelf and its components,
your system will not be 2N redundant.

Two types of power shelves exist: an AC shelf and a DC shelf. An AC power shelf houses the AC PMs, while
a DC power shelf houses the DC PMs. It is required that you use only one type of power shelf, either AC or
DC, in a chassis at a time.

Installing Power Components

Danger

The chassis might have more than one power connection. All connections must be removed to de-energize
the chassis. Statement 1028

Bonding and Grounding Guidelines

The router chassis has two safety earth ground connections. The chassis allows you to connect the central
office ground system or interior equipment grounding system to the bonding and grounding receptacles on
the router chassis. Threaded ground inserts are located on top of the chassis rear (MSC) side panel to the right
of the lower power shelf. There are also two sets of grounding studs located at the bottom of the rear (MSC)
side of the chassis.

Figure 1: NEBS Bonding and Grounding Points—Top Rear (MSC) Side of Chassis, on page 3 shows the

grounding points at the top on the rear (MSC) side of the chassis. This grounding point is also referred to as
the network equipment building system (NEBS) bonding and grounding point.

Note

These bonding and grounding receptacles are provided to satisfy the Telcordia NEBS requirements for
bonding and grounding connections.

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Installing Power Components

Do not remove the chassis ground cable unless the chassis is being replaced.Caution

Figure 1: NEBS Bonding and Grounding Points—Top Rear (MSC) Side of Chassis

Bonding and Grounding Guidelines

Note

Two Torx security screws1

The two bolts below the NEBS bonding and grounding points at the top of the chassis are required for
proper bonding and grounding of the chassis and should not be removed.

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Bonding and Grounding Guidelines

Figure 2: NEBS Bonding and Grounding Points—Bottom Rear (MSC) Side of Chassis, on page 4 shows

the NEBS and grounding points at the bottom on the rear (MSC) side of the chassis.

Figure 2: NEBS Bonding and Grounding Points—Bottom Rear (MSC) Side of Chassis

Installing Power Components

Cisco CRS Routers 16-Slot Line Card Chassis Enhanced Router Installation Guide

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Installing Power Components

Bonding and Grounding Guidelines

Cisco CRS Routers 16-Slot Line Card Chassis Enhanced Router Installation Guide

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DC Power Systems

DC Power Systems

The Cisco CRS Series Enhanced 16-slot Line Card Chassis DC power system can provide up to 16,800 watts
to power the chassis. However, by default, the power capability of a system when shipped, with six DC PMs
per power shelf, is 12,600 watts.

Installing Power Components

Note

Depending on the hardware deployed at your site, your system may not consume the maximum power
supplied by the power system.

Each DC powered chassis contains two DC power shelves for 2N redundancy. The shelves contain the input
power connectors. Each shelf can accept up to eight DC PMs. The power shelves and DC PMs are field
replaceable.

Figure 3: DC Power Shelf Cable Wiring for Power Shelf , on page 6 shows the cable wiring for the power

shelf.

Figure 3: DC Power Shelf Cable Wiring for Power Shelf

Each power shelf operates with up to eight DC inputs of –48/–60 VDC (nominal), 60A. The power shelf
accepts input DC power in the range –40 to –72 VDC.

Table 1: DC Input Current and Voltage Information, on page 7 lists the DC input current and voltage

specifications.

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Installing Power Components

Table 1: DC Input Current and Voltage Information

DC Power Systems

Nominal input voltage

–48 VDC North America–60 VDC European
Community(range: –40 VDC to –72 VDC)

Input line current

50 A maximum at –48 VDC40 A maximum at –60
VDC60 A maximum at –40 VDC

Each wiring block on the DC power shelf contains two sets of terminals, one positive and one negative, and
is covered by a plastic terminal block cover that is secured by a screw to a torque of 5 to 7 in.-lb (0.56 to 0.79
N-m). Each DC power cable is connected to the power shelf with a torque of 20 in.-lb (2.26 N-m). Maximum
wire size at the DC input terminal block is 2 AWG.

The power supply terminal posts are centered 0.63 inches (5/8 inch) (1.60 cm) apart and are M6-threaded.
We recommend that you use an appropriately sized 180-degree angle (straight) industry standard 2-hole,
standard barrel compression lug, as shown in Figure 4: DC Power Cable Lug, on page 7.

Figure 4: DC Power Cable Lug

For additional power details, see Appendix A, “Cisco CRS Series Carrier Routing System 16-Slot EC Line

Card Chassis Specifications” or the Cisco CRS Series Carrier Routing System 16-Slot Line Card Chassis

System Description .

Input-Power-Present LEDs

The DC input-power-present LEDs provide a visual indication to service personnel that there is voltage present
across the input terminal connection.

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AC Power Systems

Installing Power Components

Figure 5: Input-Power-Present LEDS, on page 8 shows the input-power-present LEDs on the rear of the

DC power shelf.

Figure 5: Input-Power-Present LEDS

Power should be disconnected before servicing the input power connection.Note

The input-power-present LED starts to light up when the input voltage reaches –20 VDC and the LED gets
brighter as voltage increases; the input-power-present LED is fully lit when the input voltage reaches –38
VDC.

Caution

If the input voltage polarity is reversed, or if the LED circuit fails, the LED will not light. When this is
the case, service personnel should check for hazardous voltages before working on the unit.

AC Power Systems

The Cisco CRS Series Enhanced 16-slot Line Card Chassis AC power system can provide up to 18,000 watts
to power the chassis. However, by default, the power capability of a system when shipped, with five AC PMs
per power shelf, is 15,000 watts.

Note

Depending on the hardware deployed at your site, your system may not consume the maximum power
supplied by the power system.

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Installing Power Components

Each AC powered chassis contains two AC power shelves for 2N redundancy. The shelves contain the input
power connectors. Each shelf can contain up to six AC PMs. The power shelves and the AC PMs are field
replaceable.

The AC power system requires single-phase AC input power. If you have 3-phase AC Delta or AC Wye at
your equipment, a Cisco CRS PDU will be required to convert 3-phase AC input power to single-phase AC
input power for the power shelf. For further information and installation instructions, refer to the Cisco CRS

3-Phase AC Power Distribution Unit Installation Guide .

The AC power shelf has the following input VAC power requirements:

How to Install Power Components

Single-phase, 200 to 240 VAC nominal, 50 to 60 Hz, 16 A.

•

Each power shelf contains six IEC-320-C22 receptacles which can accept up to six IEC-320-C21

•

connector plugs.

Note

Note

If you have a Cisco CRS 3-Phase AC PDU installed, six AC PMs are required to be installed in each Cisco
CRS Series Enhanced 16-slot Line Card Chassis AC power shelf to maintain a balanced 3-phase power
load.

We recommend that you use appropriate short-circuit protection in compliance with national and local
electrical codes.

For additional power details, see Appendix A, “Cisco CRS Series Carrier Routing System 16-Slot EC Line

Card Chassis Specifications” or the Cisco CRS Series Carrier Routing System 16-Slot Line Card Chassis

System Description .

How to Install Power Components

This section describes how to install power components in the Cisco CRS Series Enhanced 16-slot Line Card
Chassis.

Note

Although there are differences between the different types of power shelves and PMs (AC and DC), they
are installed using the same procedures.

We recommend that you install the power components in the order outlined in this section. This section
contains the following procedures:

Installing the Power A Bus Bar

This section describes how to install the Power A bus bar on the rear (MSC) side of the Cisco CRS Series
Enhanced 16-slot Line Card Chassis. For complete information on regulatory compliance and safety, see
Regulatory Compliance and Safety Information for the Cisco CRS Carrier Routing System .

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Installing the Power A Bus Bar

Prerequisites

There are no prerequisites for this task.

Required Tools and Equipment

You need the following tool to perform this task:

6-in. long number 1 Phillips screwdriver

•

Steps

To install the Power A bus bar on the chassis, perform the following steps:

SUMMARY STEPS

To release the Power A bus bar from the shipping position, loosen the six captive screws that attach the

1.

bus bar shipping bracket to the rear of the chassis. There are two screws on the right side, two screws on
the front, and two screws on the left side of the Power A bus bar shipping bracket. See Figure 6: Removing

the Power A Bus Bar Shipping Bracket, on page 11.

Remove the Power A bus bar shipping bracket form the chassis and set it aside.

2.

Remove the Power A bus bar from the rear of the chassis. See Figure 7: Removing the Cover From the

3.

Power A Bus Bar, on page 12.

Remove the cover from the Power A bus bar by loosening the two captive screws that attach the cover to

4.

the bus bar. See Figure 7: Removing the Cover From the Power A Bus Bar, on page 12.

Position the power block vertically. Mate the power block pivot and chassis pivot point together. See item

5.

2 in Figure 8: Power A Bus Bar Installed in Chassis, on page 14.

Unscrew the two handle screws on the power bus bar and open the handle. See item 3 on Figure 8: Power

6.

A Bus Bar Installed in Chassis, on page 14.

Hold the power block cable to the side to keep clear of the power block connectors while seating the power

7.

block.

Seat the power block and tighten the two screws on the handle. See item 3 in Figure 8: Power A Bus Bar

8.

Installed in Chassis, on page 14.

Tighten the Phillips captive screw that secures the tab on the left side of the power block to the chassis.

9.

See item 1 in Figure 8: Power A Bus Bar Installed in Chassis, on page 14.

Installing Power Components

DETAILED STEPS

Step 1

10

To release the Power A bus bar from the shipping position, loosen the six captive screws that attach the bus bar shipping
bracket to the rear of the chassis. There are two screws on the right side, two screws on the front, and two screws on the
left side of the Power A bus bar shipping bracket. See Figure 6: Removing the Power A Bus Bar Shipping Bracket, on

page 11.

Cisco CRS Routers 16-Slot Line Card Chassis Enhanced Router Installation Guide

Installing Power Components

Installing the Power A Bus Bar

Note

The Power A bus bar is pre-attached to the top rear of the chassis in a horizontal position using a bus bar shipping
bracket, due to shipping height restrictions.

Figure 6: Removing the Power A Bus Bar Shipping Bracket

Step 2
Step 3

1

Captive screws securing Power A bus bar bracket to rear
of chassis

Remove the Power A bus bar shipping bracket form the chassis and set it aside.

Remove the Power A bus bar from the rear of the chassis. See Figure 7: Removing the Cover From the Power A Bus

Bar, on page 12.

Note

The Power A bus bar is connected to the chassis with an internal cable. Be careful not to drop the power bus
bar.

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Installing the Power A Bus Bar

Installing Power Components

Step 4

Remove the cover from the Power A bus bar by loosening the two captive screws that attach the cover to the bus bar.
See Figure 7: Removing the Cover From the Power A Bus Bar, on page 12.

Figure 7: Removing the Cover From the Power A Bus Bar

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Installing Power Components

Installing the Power A Bus Bar

Internal cable connection1

Screws attaching cover to Power A bus bar2

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Installing the Power A Bus Bar

Installing Power Components

Step 5

Step 6

Step 7
Step 8

Position the power block vertically. Mate the power block pivot and chassis pivot point together. See item 2 in Figure

8: Power A Bus Bar Installed in Chassis, on page 14.

Unscrew the two handle screws on the power bus bar and open the handle. See item 3 on Figure 8: Power A Bus Bar

Installed in Chassis, on page 14.

Hold the power block cable to the side to keep clear of the power block connectors while seating the power block.

Seat the power block and tighten the two screws on the handle. See item 3 in Figure 8: Power A Bus Bar Installed in

Chassis, on page 14.

Figure 8: Power A Bus Bar Installed in Chassis

Captive screw securing Power A bus bar to chassis1

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Installing Power Components

Installing the Upper Grille Support

Chassis pivot point2

Two screws securing handle to Power A bus bar3

Step 9

Tighten the Phillips captive screw that secures the tab on the left side of the power block to the chassis. See item 1 in

Figure 8: Power A Bus Bar Installed in Chassis, on page 14.

What to Do Next

After the Power A bus bar has been installed, install the upper grille support. Continue to the Installing the

Upper Grille Support, on page 15 for more information.

Installing the Upper Grille Support

This section describes how to install the upper grille support on the Cisco CRS Series Enhanced 16-slot Line
Card Chassis. For complete information on regulatory compliance and safety, see Regulatory Compliance
and Safety Information for the Cisco CRS Carrier Routing System .

Although the upper grille support is an exterior cosmetic component, it must be installed prior to installing
the upper chassis ground cable and the power shelves.

Prerequisites

Before performing this task, perform the following procedure:

Required Tools and Equipment

You need the following tools and equipment to perform this task:

6-in. long number 1 Phillips screwdriver

•

Upper grille support

•

Steps

To attach the upper grille support to the chassis, perform the following steps:

SUMMARY STEPS

Attach the upper grille support to the front of the chassis. Use the screwdriver to install the six M4 flat

1.

head screws, three on each side, to the chassis. See Figure 9: Attaching the Upper Grille Support to the

Chassis, on page 16.

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Installing the Unistruts

DETAILED STEPS

Attach the upper grille support to the front of the chassis. Use the screwdriver to install the six M4 flat head screws, three
on each side, to the chassis. See Figure 9: Attaching the Upper Grille Support to the Chassis, on page 16.

Figure 9: Attaching the Upper Grille Support to the Chassis

Installing Power Components

What to Do Next

After the upper grille support has been installed, attach the unistruts. Continue to the Installing the Unistruts,

on page 16 for more information.

Installing the Unistruts

This section describes how to install the unistruts on the Cisco CRS Series Enhanced 16-slot Line Card Chassis.
For complete information on regulatory compliance and safety, see Regulatory Compliance and Safety
Information for the Cisco CRS Carrier Routing System .

Although the unistruts are exterior cosmetic components, they should be installed prior to installing the upper
chassis ground cable and the power shelves.

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Installing Power Components

Prerequisites

Before performing this task, perform the following procedures:

Required Tools and Equipment

You need the following tools and equipment to perform this task:

8mm hex bit socket

•

3/8-in. drive ratchet wrench

•

Torque wrench with 13-mm hex key and rated accuracy at 40 to 50 in.-lb (4.52 to 5.65 N-m)

•

Unistruts

•

Steps

Installing the Unistruts

SUMMARY STEPS

DETAILED STEPS

Attach each unistrut to the top of the chassis by inserting four M12 hex head bolts and washers, two for each strut, into
the bolt holes on the inside of the strut, and tightening with the 8mm hex bit socket and ratchet wrench. The closed end
of a unistrut faces the front (PLIM) side of the chassis. See Figure 10: Attaching the Unistrut, on page 18.

Note

To attach the unistruts to the chassis, perform the following steps:

Attach each unistrut to the top of the chassis by inserting four M12 hex head bolts and washers, two for

1.

each strut, into the bolt holes on the inside of the strut, and tightening with the 8mm hex bit socket and
ratchet wrench. The closed end of a unistrut faces the front (PLIM) side of the chassis. See Figure 10:

Attaching the Unistrut, on page 18.

The left unistrut (as you face the front [PLIM] side of the chassis) has a cutaway in the rear to admit the chassis
ground cable; the right unistrut does not. The right unistrut as viewed from the front PLIM side of the router
has a bolt position that is 6.5 inches from the end at the rear of the router.

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Installing the Unistruts

Installing Power Components

Caution

Cisco recommends an install torque range for the unistrut bolts between 40 and 50 to in.-lb (between 4.52
N-m and 5.65 N-m).

Figure 10: Attaching the Unistrut

What to Do Next

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Cutaway for ground cable3Upper grille support1

Unistruts2

After the upper grille support has been installed, install the chassis ground cable. Continue to the Installing

the Chassis Ground Cable, on page 19 for more information.

Installing Power Components

Installing the Chassis Ground Cable

This section describes how to install the chassis ground cable on the Cisco CRS Series Enhanced 16-slot Line
Card Chassis. For complete information on regulatory compliance and safety, see Regulatory Compliance
and Safety Information for the Cisco CRS Carrier Routing System .

Prerequisites

Before performing this task, perform the following procedures:

Required Tools and Equipment

You need the following tools and equipment to perform this task:

Ground lug

•

Ground cable

•

Installing the Chassis Ground Cable

Crimping tool and lug specific die

•

3/8 in. drive socket wrench

•

10-mm 6 pt. socket

•

Torque wrench with 10-mm 6 pt. socket and rated accuracy at 30 in.-lb (3.39 N-m)

•

To ensure a satisfactory ground connection, you also need the following parts:

One 180-degree angle (straight) grounding lug that has two M6 bolt holes with 0.63 inches (5/8 inch)

•

(1.60 cm) of spacing center to center between them and a 6 AWG or larger multistrand copper wire.See

Figure 11: 180-Degree (Straight) Chassis Ground Lug, on page 19.

Figure 11: 180-Degree (Straight) Chassis Ground Lug

Two M6 hex head bolts and integrated locking washers are pre-installed on the chassis.

•

Cisco recommend at least 6 AWG multistrand copper ground cable. This cable is not available from

•

Cisco Systems; it is available from any commercial cable vendor. The cable should be sized according
to local and national installation requirements.

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Installing the Chassis Ground Cable

Installing Power Components

Note

Steps

SUMMARY STEPS

DETAILED STEPS

Step 1
Step 2

Use the crimping tool mandated by the lug manufacturer to crimp the lug to the ground cable.

Using the 10-mm wrench, attach the ground cable to the upper grounding point as shown in Figure 12: NEBS Bonding

and Grounding Points—Top of Chassis, on page 21 for overhead grounding. Use the optional lower grounding point,

The DC return of this system should remain isolated from the system frame and chassis (DC-I: Isolated
DC Return).

To attach the ground cable to the chassis, perform the following steps:

Use the crimping tool mandated by the lug manufacturer to crimp the lug to the ground cable.

1.

Using the 10-mm wrench, attach the ground cable to the upper grounding point as shown in Figure 12:

2.

NEBS Bonding and Grounding Points—Top of Chassis, on page 21 for overhead grounding. Use the

optional lower grounding point, as shown in Figure 13: NEBS Bonding and Grounding Points—Bottom

of Chassis, on page 22 if the ground cable is run from under a raised floor.

Use the torque wrench to tighten to a torque of 30 in.-lb (3.39 N-m).

3.

Connect the other end of the ground cable to a grounding point at your site, according to site requirements.

4.

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Installing Power Components

as shown in Figure 13: NEBS Bonding and Grounding Points—Bottom of Chassis, on page 22 if the ground cable is
run from under a raised floor.

Figure 12: NEBS Bonding and Grounding Points—Top of Chassis

Installing the Chassis Ground Cable

Two Torx security screws1

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Installing the Chassis Ground Cable

Installing Power Components

Note

The two bolts below the NEBS bonding and grounding points at the top of the chassis are required for proper
bonding and grounding of the chassis and should not be removed.

Figure 13: NEBS Bonding and Grounding Points—Bottom of Chassis

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Installing Power Components

Installing the Chassis Ground Cable

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Installing an AC or DC Power Shelf

Installing Power Components

Step 3
Step 4

Use the torque wrench to tighten to a torque of 30 in.-lb (3.39 N-m).

Connect the other end of the ground cable to a grounding point at your site, according to site requirements.

What to Do Next

After the chassis ground cable has been attached, remove the exhaust air deflector from the rear of the chassis.
Continue to the “Removing the Exhaust Air Deflector” section on page 7-45 for instructions.

Installing an AC or DC Power Shelf

This section describes how to install the AC or DC power shelves in the Cisco CRS Series Enhanced 16-slot
Line Card Chassis. For complete information on regulatory compliance and safety, see Regulatory Compliance
and Safety Information for the Cisco CRS Carrier Routing System .

Although there are differences between the AC and DC power shelves, they are installed using the same
procedures.

The front and rear views of the DC power shelves are shown in Figure 14: DC Power Shelf—Front View,

on page 24 and Figure 15: DC Power Shelf—Rear View, on page 24.

Figure 14: DC Power Shelf—Front View

Figure 15: DC Power Shelf—Rear View

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Installing Power Components

The front and rear views of the AC power shelf are shown in Figure 16: AC Power Shelf—Front View, on

page 25 and Figure 17: AC Power Shelf—Rear View, on page 25.

Figure 16: AC Power Shelf—Front View

Figure 17: AC Power Shelf—Rear View

Installing an AC or DC Power Shelf

Prerequisites

Note

Before performing this task, perform the following procedures:

Installing the Power A Bus Bar, on page 9

•

Installing the Upper Grille Support, on page 15

•

Installing the Unistruts, on page 16

•

Installing the Chassis Ground Cable, on page 19

•

Removing the Exhaust Air Deflector, page 7-45 (if the lower power shelf is being installed)

•

Removing the Upper Rear Air Grille, page 7-21 (if installed)

•

Removing the Front Upper Grille, page 7-28 (if installed)

•

Removing the Upper Grille Support, page 7-52 (if installed)

•

Verify that the power shelf that you are about to install is the correct power shelf, either AC or DC.

•

Do not install the power shelf in the chassis with AC or DC PMs, or alarm module installed in the power
shelf.

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Installing an AC or DC Power Shelf

Required Tools and Equipment

You need the following tools to perform this task:

6-in. long number 2 Phillips screwdriver

•

Torque screwdriver with number 2 Phillips head and rated accuracy at 15 in.-lb (1.69 N m) to 20 in.-lb

•

(2.26 N m)

AC or DC power shelf

•

AC power shelf (Cisco product number CRS-16-PWRSH-AC=), or

◦

DC power shelf (Cisco product number CRS-16-PWRSH-DC=)

◦

Steps

To install the AC or DC power shelf, perform the following steps

Installing Power Components

SUMMARY STEPS

Unpack the shelves to be installed.

1.

Using two people, one to support the power shelf underneath and the other to keep it steady, lift the power

2.

shelf up and slide it partway into the power shelf slot on the front (PLIM) side of the chassis. See Figure

19: Installing the Power Shelf in the Chassis, on page 28.

Unscrew the ejector handles from the front face of the shelf, one on each side. See Figure 18: Power Shelf

3.

Ejector Handles on Front of Power Shelf, on page 27.

Grasping both handles simultaneously, push both the left and right handles up and in at the same time to

4.

push the shelf into the chassis. Slide the shelf all the way into the chassis, until both power shelf handles
hook around the pins.

Using the screwdriver, tighten the captive screw on both power shFigure 20: Installing and Securing Power

5.

Shelf, on page 29 Figure 3-20 .

Using the torque screwdriver, tighten the two screws that attach the bottom of the power shelf, one on

6.

each side, to the chassis to a torque value of 15 in.-lb (1.69 N m) to 20 in.-lb (2.26 N m). See Figure 20:

Installing and Securing Power Shelf, on page 29.

Install the second power shelf, following through Step 3 through Step 6.

7.

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Installing Power Components

DETAILED STEPS

Installing an AC or DC Power Shelf

Step 1
Step 2

Step 3

Unpack the shelves to be installed.

Using two people, one to support the power shelf underneath and the other to keep it steady, lift the power shelf up and
slide it partway into the power shelf slot on the front (PLIM) side of the chassis. See Figure 19: Installing the Power

Shelf in the Chassis, on page 28.

Unscrew the ejector handles from the front face of the shelf, one on each side. See Figure 18: Power Shelf Ejector Handles

on Front of Power Shelf, on page 27.

Figure 18: Power Shelf Ejector Handles on Front of Power Shelf

1

Caution

Power shelf ejector handle pushed up to slide shelf into
chassis

Power shelf ejector handle pulled away from shelf2

Screws that attach power shelf to chassis3

Because of the weight of the power shelf, 40 lbs (18 kg), and the height that the power shelf is installed in
the chassis, you should be especially careful while lifting and installing the power shelf. To prevent injury,
keep your back straight and lift with your legs, not your back. Avoid sudden twists or lateral moves.

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Installing an AC or DC Power Shelf

Installing Power Components

Note

Although you can install the power shelves in any order that you prefer, Cisco suggests that you install the upper
power shelf first and then install the lower power shelf. Ensure that the first power shelf is properly seated before
attempting to install the second power shelf.

Figure 19: Installing the Power Shelf in the Chassis

Step 4

28

Power shelf being installed1

Grasping both handles simultaneously, push both the left and right handles up and in at the same time to push the shelf
into the chassis. Slide the shelf all the way into the chassis, until both power shelf handles hook around the pins.

Cisco CRS Routers 16-Slot Line Card Chassis Enhanced Router Installation Guide

Installing Power Components

Make sure both handles swing straight up. Use care not to bend the handles sideways.Caution

Figure 20: Installing and Securing Power Shelf

Installing an AC or DC Power Shelf

Step 5

Step 6

Step 7

Using the screwdriver, tighten the captive screw on both power shFigure 20: Installing and Securing Power Shelf, on

page 29 Figure 3-20 .

Using the torque screwdriver, tighten the two screws that attach the bottom of the power shelf, one on each side, to the
chassis to a torque value of 15 in.-lb (1.69 N m) to 20 in.-lb (2.26 N m). See Figure 20: Installing and Securing Power

Shelf, on page 29.

The screws that secure the power shelf to the chassis are relied upon for power shelf bonding and grounding.Note

Install the second power shelf, following through Step 3 through Step 6.

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Installing AC or DC Power Shelf Wiring

What to Do Next

After the power shelves have been installed in the chassis, install the AC or DC power shelf wiring. Continue
to the Installing AC or DC Power Shelf Wiring, on page 30 for instructions.

Installing AC or DC Power Shelf Wiring

This section describes how to connect the DC input wiring and install the DC terminal block covers, or install
the AC cords on the Cisco CRS Series Enhanced 16-slot Line Card Chassis. For complete information on
regulatory compliance and safety, see Regulatory Compliance and Safety Information for the Cisco CRS
Carrier Routing System .

Installing DC Power Shelf Wiring

This section describes how to connect the DC input wiring to the rear of the power shelf and install the DC
terminal block covers on the Cisco CRS Series Enhanced 16-slot Line Card Chassis.

Figure 21: DC Power Shelf Cable Wiring for Power Shelf , on page 30 shows the cable wiring for the DC

power shelf.

Installing Power Components

Note

Figure 21: DC Power Shelf Cable Wiring for Power Shelf

For additional power shelf details, see the Cisco CSR-1 Series Carrier Routing System Description or Appendix

A, “Cisco CRS Series Carrier Routing System 16-Slot EC Line Card Chassis Specifications.”

When wiring the power shelf, be sure to connect the chassis ground cable first. For more information, see
the Bonding and Grounding Guidelines, on page 2 and the Installing the Chassis Ground Cable, on

page 19.

Prerequisites

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Before performing this task, perform the following procedures:

Installing Power Components

Before installing wiring on the power shelf, make sure that the input power cables are not energized.Note

Required Tools and Equipment

You need the following tools to perform this task:

DC power cables

•

DC power cable lugs

•

Crimping tool and lug specific die

•

3/8 in. ratchet wrench with 10-mm socket

•

Multimeter

•

Torque wrench with 10-mm 6 pt. socket and rated accuracy at 20 in.-lb (2.26 N-m)

•

Installing AC or DC Power Shelf Wiring

Steps

SUMMARY STEPS

DETAILED STEPS

Step 1
Step 2

Remove the terminal block covers, if installed.

Verify the following resistance values on both power shelves:

To wire the DC power shelf, perform the following steps:

Remove the terminal block covers, if installed.

1.

Verify the following resistance values on both power shelves:

2.

Use the crimping tool mandated by the lug manufacturer to crimp the lugs to the DC-input cables. For

3.

details on lugs, see the DC Power Systems, on page 6.

Using the wrench, attach the positive and negative cable pairs to each terminal block on the upper power

4.

shelf (Power A). Start with PM0 (located on the right side) and move left, finishing with PM7(located on
the left side). Use the torque wrench to tighten to a torque of 20 in.-lb (2.26 N-m). Route the power cables
for the upper power shelf to the left.

Using the wrench, attach the positive and negative cable pairs to each terminal block on the lower power

5.

shelf (Power B). Start with PM0 (located on the right side) and move left, finishing with PM7(located on
the left side). Use the torque wrench to tighten to a torque of 20 in.-lb (2.26 N-m). Route the power cables
to the right.

The resistance between the positive and negative power terminal studs of each input must be greater than 90 KOhm.

•

The resistance between each positive terminal stud and bare metal surface on the power shelf must be greater that

•

10MOhms.

The resistance between each negative terminal stud and bare metal surface on the power shelf must be greater that

•

10MOhms.

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Installing AC or DC Power Shelf Wiring

Installing Power Components

Step 3

Step 4

Step 5

What to Do Next

Note

Typical hand held Ohm meters will not measure 10MOhms, instead they will auto range to acquire a measurement
and give an out-of-range reading. This is an acceptable reading provided that the meter is in calibration.

Use the crimping tool mandated by the lug manufacturer to crimp the lugs to the DC-input cables. For details on lugs,
see the DC Power Systems, on page 6.
The cable should be sized according to local and national installation requirements. Use only copper cable.

Note

The power supply terminal block lug width is 0.60 inch (1.50 cm). The terminal posts are centered 0.63 inches
(5/8 inch) (1.60 cm) apart and are M6-threaded. We recommend that you use an appropriately sized 180-degree
(straight) industry standard 2-hole, standard barrel compression lug.

Using the wrench, attach the positive and negative cable pairs to each terminal block on the upper power shelf (Power
A). Start with PM0 (located on the right side) and move left, finishing with PM7(located on the left side). Use the torque
wrench to tighten to a torque of 20 in.-lb (2.26 N-m). Route the power cables for the upper power shelf to the left.

Using the wrench, attach the positive and negative cable pairs to each terminal block on the lower power shelf (Power
B). Start with PM0 (located on the right side) and move left, finishing with PM7(located on the left side). Use the torque
wrench to tighten to a torque of 20 in.-lb (2.26 N-m). Route the power cables to the right.

Note

Ensure cables are dressed correctly to ensure enough clearance to install the upper air
grille.

After the DC power shelf wiring has been installed, attach the terminal block covers. Continue to the Installing

DC Terminal Block Covers, on page 33 for instructions.

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Installing Power Components

Installing DC Terminal Block Covers

Figure 22: DC Terminal Block Cover, on page 33 shows the DC terminal block cover.

Figure 22: DC Terminal Block Cover

Installing AC or DC Power Shelf Wiring

Install the terminal block cover after the input wiring is installed, but before power has been energized.Caution

Required Tools and Equipment

You need the following tools to perform this task:

6-in. long Number 1 Phillips screwdriver

•

Terminal block covers

•

Torque screwdriver with Number 1 Phillips head and a torque rating of 5 to 7 in.-lb

•

Steps

To install the DC terminal block covers, go to the rear (MSC) side of the chassis and perform the following
steps:

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Installing AC or DC Power Shelf Wiring

SUMMARY STEPS

DETAILED STEPS

Installing Power Components

Align the DC terminal block cover with the cover latch tab.

1.

Slide the terminal block cover upwards to align the screw with the mounting standoff.

2.

Use the screwdriver to secure the screw into the mounting standoff, see Figure 23: Securing the Terminal

3.

Block Cover, on page 34. Tighten to a torque of 5 to 7 in.-lb.

Step 1
Step 2
Step 3

Align the DC terminal block cover with the cover latch tab.

Slide the terminal block cover upwards to align the screw with the mounting standoff.

Use the screwdriver to secure the screw into the mounting standoff, see Figure 23: Securing the Terminal Block Cover,

on page 34. Tighten to a torque of 5 to 7 in.-lb.

Figure 23: Securing the Terminal Block Cover

What To Do Next

After you install the DC input cables and DC terminal block cover, re-install the rear exhaust air deflector.
Continue to the Installing the Exhaust Air Deflector, on page 37 for instructions.

Installing AC Power Cords

This section describes how to install input AC cords on the rear of the power shelf.

Note

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34

When installing AC power cords on the power shelf, be sure to connect the chassis ground cable first. For
more information, see the Bonding and Grounding Guidelines, on page 2 and the Installing the Chassis

Ground Cable, on page 19.

Installing Power Components

Prerequisites

Before performing this task, perform the following procedures:

If you have AC Delta or AC Wye at your equipment, ensure that two Cisco CRS PDUs are installed to convert
3-phase AC input power to single-phase AC input power for the power shelves. For further information, refer
to Cisco CRS 3-Phase AC Power Distribution Unit Installation Guide .

Installing AC or DC Power Shelf Wiring

Note

If you have a Cisco CRS PDU installed, the AC power cords must be installed as labeled. For further
information, refer to the Cisco CRS 3-Phase AC Power Distribution Unit Installation Guide .

Note

Before installing input AC power cords on the power shelf, make sure that the input power cords are not
energized.

Required Tools and Equipment

You need the following tools to perform this task:

Steps

To install the input AC cord, go to the rear (MSC) side of the chassis and perform the following steps:

SUMMARY STEPS

1.

2.

6-in. long number 1 Phillips screwdriver

•

• Input AC power cords, depending on locale (Refer to Appendix B, “Product IDs.” )

Insert the cord plug into the cord clamp (see Figure 24: Cord Being Inserted into Cord Clamp, on page

36) following the labeling on the phase assignments from the PDU or the labeling on the single phase

power cords. As viewed from the front, the PDU on the right side is power shelf B and the PDU on the
left side is power shelf A.

Use the screwdriver to secure the screw that clamps the cord plug in place, see Figure 24: Cord Being

Inserted into Cord Clamp, on page 36.

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Installing AC or DC Power Shelf Wiring

DETAILED STEPS

Installing Power Components

Step 1

Insert the cord plug into the cord clamp (see Figure 24: Cord Being Inserted into Cord Clamp, on page 36) following
the labeling on the phase assignments from the PDU or the labeling on the single phase power cords. As viewed from
the front, the PDU on the right side is power shelf B and the PDU on the left side is power shelf A.

Figure 24: Cord Being Inserted into Cord Clamp

Step 2

What To Do Next

1

3Screw that secures the cord

clamp

2

Screwdriver tightening

Cord plug to be inserted into
clamp

screw

Use the screwdriver to secure the screw that clamps the cord plug in place, see Figure 24: Cord Being Inserted into Cord

Clamp, on page 36.

After you install the AC input cords, re-install the rear exhaust air deflector. Continue to the Installing the

Exhaust Air Deflector, on page 37 for instructions.

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Installing Power Components

Installing the Exhaust Air Deflector

This section describes how to install the exhaust air deflector on the rear of the Cisco CRS Series Enhanced
16-slot Line Card Chassis. For complete information on regulatory compliance and safety, see Regulatory
Compliance and Safety Information for the Cisco CRS Carrier Routing System .

Prerequisites

Before performing this task, perform the following procedures:

Required Tools and Equipment

You need the following tools and equipment to perform this task:

6-in. long number 2 Phillips screwdriver

•

Rear exhaust air deflector (set aside earlier)

•

Installing the Exhaust Air Deflector

Steps

SUMMARY STEPS

To install the exhaust air deflector on the chassis, perform the following steps:

Locate the mounting position standoffs on each side of the exhaust opening.

1.

Position the lower cutouts on the bottom of the air deflector with the lower standoffs.

2.

Rotate the air deflector forward until it is seated on the upper standoff.

3.

Tighten the captive screw on both sides.

4.

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Installing the Exhaust Air Deflector

DETAILED STEPS

Installing Power Components

Step 1
Step 2

Locate the mounting position standoffs on each side of the exhaust opening.

Position the lower cutouts on the bottom of the air deflector with the lower standoffs.

Figure 25: Positioning the Lower Cutouts

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Installing Power Components

Installing the Exhaust Air Deflector

Step 3

Step 4

Rotate the air deflector forward until it is seated on the upper standoff.

Figure 26: Rotating the Air Deflector Forward

Tighten the captive screw on both sides.

Figure 27: The Captive Screw

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Installing Power Components

Installing an Alarm Module

Figure 28: Installed Exhaust Air Deflector, on page 40 shows the exhaust air deflector installed on the chassis.

Figure 28: Installed Exhaust Air Deflector

What to Do Next

After the exhaust air deflector has been re-installed on the rear (MSC) side of the chassis, install the alarm
module and power modules in both power shelves. Continue to the Installing an Alarm Module, on page 40
and the Installing a Power Module, on page 45 for instructions.

Installing an Alarm Module

This section describes how to install the alarm modules in the power shelves in the Cisco CRS Series Enhanced
16-slot Line Card Chassis. For complete information on regulatory compliance and safety, see Regulatory
Compliance and Safety Information for the Cisco CRS Carrier Routing System .

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40

Installing Power Components

Figure 29: Alarm Module, on page 41 shows an alarm module.

Figure 29: Alarm Module

Prerequisites

Installing an Alarm Module

Before performing this task, perform the following procedures:

Do not attempt to install the alarm module until the power shelf is in place and screwed into the chassis.Caution

Required Tools and Equipment

You need the following tools to perform this task:

ESD-preventive wrist strap

•

6-in. long number 1 Phillips screwdriver

•

Alarm module (Cisco product number CRS-16-ALARM-B=)

•

Steps

To install the alarm module, perform the following steps:

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Installing an Alarm Module

SUMMARY STEPS

Installing Power Components

Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection

1.

sockets: on the front (PLIM) side of the chassis there is one ESD connection socket right above the fan
controllers. On the rear (MSC) side of the chassis there are two ESD connection sockets right above the
cable management tray in the center of the chassis (left and right). You can also connect the ESD-preventive
wrist strap leash to any bare metal surface on the chassis.

Hold the alarm module such that the ejector handle is on the lower left front side. See Figure 30: Installing

2.

Alarm Module in Power Shelf, on page 43.

Slide the alarm module into the bay on the right side of the power shelf. As you slide the module in, hold

3.

the ejector and gently push until it engages the chassis. See Figure 30: Installing Alarm Module in Power

Shelf, on page 43.

Continue to push the alarm module gently and rotate alarm module ejector upwards to seat the alarm

4.

module. Be careful not to pinch fingers between the ejector handle and the alarm module. See Figure 31:

Rotating Alarm Module Ejector Upwards to Seat Alarm Module, on page 44.

Hand tighten the captive screw on the lower right corner of the alarm module.

5.

Use the number 1 Phillips screwdriver to securely fasten captive screw that secures the alarm module to

6.

the power shelf.

DETAILED STEPS

Step 1

Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets: on the
front (PLIM) side of the chassis there is one ESD connection socket right above the fan controllers. On the rear (MSC)
side of the chassis there are two ESD connection sockets right above the cable management tray in the center of the

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Installing Power Components

chassis (left and right). You can also connect the ESD-preventive wrist strap leash to any bare metal surface on the
chassis.

Step 2

Hold the alarm module such that the ejector handle is on the lower left front side. See Figure 30: Installing Alarm Module

in Power Shelf, on page 43.

Step 3

Slide the alarm module into the bay on the right side of the power shelf. As you slide the module in, hold the ejector and
gently push until it engages the chassis. See Figure 30: Installing Alarm Module in Power Shelf, on page 43.

Figure 30: Installing Alarm Module in Power Shelf

Installing an Alarm Module

Alarm module1

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Installing an Alarm Module

Installing Power Components

Step 4

Continue to push the alarm module gently and rotate alarm module ejector upwards to seat the alarm module. Be careful
not to pinch fingers between the ejector handle and the alarm module. See Figure 31: Rotating Alarm Module Ejector

Upwards to Seat Alarm Module, on page 44.

Figure 31: Rotating Alarm Module Ejector Upwards to Seat Alarm Module

Step 5
Step 6

Hand tighten the captive screw on the lower right corner of the alarm module.

Use the number 1 Phillips screwdriver to securely fasten captive screw that secures the alarm module to the power shelf.

What to Do Next

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After the alarm modules are installed in the power shelves, install the AC or DC power modules. Continue
to the Installing a Power Module, on page 45 for instructions.

Installing Power Components

Installing a Power Module

This section describes how to install the AC or DC PMs, shown in Figure 32: Power Module, on page 45 ,
in the Cisco CRS Series Enhanced 16-slot Line Card Chassis. For complete information on regulatory
compliance and safety, see Regulatory Compliance and Safety Information for the Cisco CRS Carrier Routing
System .

Although there are differences between the AC and DC power modules, they are installed using the same
procedures.

Figure 32: Power Module

Installing a Power Module

Prerequisites

Before performing this task, perform the following procedures:

Do not attempt to install the PM until the power shelf is in place and screwed into the chassis.Caution

Required Tools and Equipment

You need the following tools to perform this task:

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Installing a Power Module

Steps

SUMMARY STEPS

Installing Power Components

ESD-preventive wrist strap

•

6-in. long number 1 Phillips screwdriver

•

Torque screwdriver with number 1 Phillips bit and rated accuracy at 5.5 in.-lb (0.62 N-m)

•

AC or DC PM

•

AC PM (Cisco product number CRS-PM-AC=), or

◦

DC PM (Cisco product number CRS-PM-DC=)

◦

To install the PM in a power shelf, perform the following steps:

Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection

1.

sockets: on the front (PLIM) side of the chassis there is one ESD connection socket right above the fan
controllers. On the rear (MSC) side of the chassis there are two ESD connection sockets right above the
cable management tray in the center of the chassis (left and right). You can also connect the ESD-preventive
wrist strap leash to any bare metal surface on the chassis.

Using two hands to support and guide the PM, slide it into the power shelf. Install PM0 first.

2.

Rotate the ejector lever upwards to seat the PM into the power shelf. Tighten the ejector lever to nominal

3.

install torque of 5.5 in.-lb (0.62 N m), screw the PM into the shelf (see Figure 33: Securing the PM to the

Shelf, on page 47). Do not exceed a maximum install torque of 10 in.-lb (1.13 N-m).

Fill the power shelf, in PM ascending order, to the required configuration.

4.

DETAILED STEPS

Step 1

Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets: on the
front (PLIM) side of the chassis there is one ESD connection socket right above the fan controllers. On the rear (MSC)
side of the chassis there are two ESD connection sockets right above the cable management tray in the center of the

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Installing Power Components

chassis (left and right). You can also connect the ESD-preventive wrist strap leash to any bare metal surface on the
chassis.

Step 2
Step 3

Using two hands to support and guide the PM, slide it into the power shelf. Install PM0 first.

Rotate the ejector lever upwards to seat the PM into the power shelf. Tighten the ejector lever to nominal install torque
of 5.5 in.-lb (0.62 N m), screw the PM into the shelf (see Figure 33: Securing the PM to the Shelf, on page 47). Do not
exceed a maximum install torque of 10 in.-lb (1.13 N-m).

Figure 33: Securing the PM to the Shelf

Installing a Power Module Slot Cover

Step 4

Fill the power shelf, in PM ascending order, to the required configuration.

What to Do Next

After performing this task, install power module slot covers into empty power module slots in the power shelf,
if any. For more information, see the Installing a Power Module Slot Cover, on page 47. Other wise, re-install
the upper grille on the front (PLIM) side of the chassis, if applicable.

Installing a Power Module Slot Cover

This section describes how to install power module slot covers, in empty power module slots in the power
shelves installed in the Cisco CRS Series Enhanced 16-slot Line Card Chassis. For complete information on
regulatory compliance and safety, see Regulatory Compliance and Safety Information for the Cisco CRS
Carrier Routing System .

Although the AC and DC power module slot covers differ slightly in size, they are installed using the same
procedures.

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Installing a Power Module Slot Cover

Prerequisites

Before performing this task, you must first remove the upper grille on the front (PLIM) side of the chassis, if
installed, and install the alarm module and power modules to the required configuration in each power shelf.
See Installing an Alarm Module, on page 40 and Installing a Power Module, on page 45.

Required Tools and Equipment

You need the following tools to perform this task:

ESD-preventive wrist strap

•

AC or DC PM Slot Cover

•

◦ AC PM slot cover (Cisco product number 700–29097–xx), or

◦ DC PM slot cover (Cisco product number 700–29098–xx)

Installing Power Components

Steps

SUMMARY STEPS

DETAILED STEPS

Step 1

Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets: on the
front (PLIM) side of the chassis there is one ESD connection socket right above the fan controllers. On the rear (MSC)
side of the chassis there are two ESD connection sockets right above the cable management tray in the center of the

To install a PM slot cover in a power shelf, perform the following steps:

Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection

1.

sockets: on the front (PLIM) side of the chassis there is one ESD connection socket right above the fan
controllers. On the rear (MSC) side of the chassis there are two ESD connection sockets right above the
cable management tray in the center of the chassis (left and right). You can also connect the ESD-preventive
wrist strap leash to any bare metal surface on the chassis.

Align the PM slot cover with the empty PM slot in the power shelf.

2.

Insert the two tabs on the right side of the PM slot cover into the two holes on the right side of the PM

3.

slot. See Figure 34: Installing PM Slot Cover, on page 49.

Push the left side of the PM slot cover gently until it clicks into place. See Figure 34: Installing PM Slot

4.

Cover, on page 49.

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Installing Power Components

chassis (left and right). You can also connect the ESD-preventive wrist strap leash to any bare metal surface on the
chassis.

Step 2
Step 3

Align the PM slot cover with the empty PM slot in the power shelf.

Insert the two tabs on the right side of the PM slot cover into the two holes on the right side of the PM slot. See Figure

34: Installing PM Slot Cover, on page 49.

Step 4

Push the left side of the PM slot cover gently until it clicks into place. See Figure 34: Installing PM Slot Cover, on page

49.

Figure 34: Installing PM Slot Cover

Installing a Power Module Slot Cover

What to Do Next

After performing this task, re-install the upper grille on the front (PLIM) side of the chassis, if applicable.

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Power Up and Power Down a Chassis

Power Up and Power Down a Chassis

This section describes how to power up and power down a chassis with an AC or DC power shelf. For details
on the chassis power systems, see the Basic Chassis Power Details, on page 1, the AC Power Systems, on

page 8, and the DC Power Systems, on page 6 . For complete information on regulatory compliance and

safety, see Regulatory Compliance and Safety Information for the Cisco CRS Carrier Routing System .

Most components on the chassis, such as the PMs, alarm modules, and fan trays, can be removed or installed
in the chassis while it is running. Although it is possible to install or remove a power shelf while the chassis
is running, it is recommended to remove power from the chassis completely, if possible, for service protection
and safety.

Figure 35: Cisco CRS Enhanced 16-Slot Line Card Chassis Front (PLIM) Side Slot Numbers, on page 50

shows the chassis slot number on the front (PLIM) side of the Cisco CRS Series Enhanced 16-slot Line Card
Chassis with an AC and DC power system installed.

Figure 35: Cisco CRS Enhanced 16-Slot Line Card Chassis Front (PLIM) Side Slot Numbers

Installing Power Components

Table 2: PM LED Status Indicator LightS, on page 51 shows the LED status indicator lights for the AC and

DC PMs in a power supply.

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Installing Power Components

Table 2: PM LED Status Indicator LightS

Power Up a Chassis

Function or MeaningColorLED Name

Power Up a Chassis

This section describes how to power up a chassis with AC or DC power shelves installed.

GreenInput_OK

GreenOutput_OK

RedInternal Fault

On: The input voltage is present
and within regulation range.

Blinking: The input voltage is
present but out of regulation range.

Off: The input voltage is not
present.

On: The output voltage is on.

Blinking: The PM is in a power
limit or an OC condition.

Off: The output voltage is off.

On: An internal fault is detected
within the PM.

Off: The PM has no internal fault.

Prerequisites

Steps

Before performing this task, perform the following procedures:

If you have a DC power system installed, wiring at the BDFB or at the power plant should be complete.

To power on the chassis, perform the following steps:

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Power Up a Chassis

SUMMARY STEPS

DETAILED STEPS

Installing Power Components

Make sure all boards (RPs, PLIMs, SFCs, and FPs) are pulled-out and disconnected from the backplane.

1.

Verify that the three status LEDs on the front of each power module are off.

Make sure that I/O switches on the rear of the upper (Power A) and lower (Power B) power shelves are

2.

in the OFF position.

If you have a DC power system installed, perform the following steps:

3.

If you have an AC power system installed, perform the following steps:

4.

Verify that the fan tray and fan controller LEDs are on and that the fans are running.

5.

Turn the I/O switch at the rear of both upper power shelves (Power A and Power B) to the OFF position.

6.

Verify that none of the Output_OK LEDs on the PMs installed in the shelf are green.

Install all boards (RPs, PLIMs, SFCs, and FPs) in the chassis. For more information, see Chapter 6,

7.

“Installing Line Cards, PLIMs, and Associated Components.”

Turn the I/O switch at the rear of both power shelves (Power A and Power B) to the ON position.

8.

Step 1

Step 2

Step 3

Step 4

Make sure all boards (RPs, PLIMs, SFCs, and FPs) are pulled-out and disconnected from the backplane. Verify that the
three status LEDs on the front of each power module are off.

Make sure that I/O switches on the rear of the upper (Power A) and lower (Power B) power shelves are in the OFF
position.

If you have a DC power system installed, perform the following steps:

a) Insert the power fuse at the BDFB or power plant to energize PM 0 on the upper power shelf, Power A.
b) Measure the voltage at the input terminal block and verify that the DC voltage between the positive and negative

terminals is between 48 VDC and 60 VDC. Make a note of this voltage measurement.

Make sure that the polarity of the DC input wiring is correct.Caution

Caution

This is a positive ground system; make sure to connect the positive lead to the +RTN terminal and the

negative lead to the -48V terminal.
c) Verify that the correct Input OK LED on PM is lit.
d) Repeat Step a through Step c for each of the remaining DC inputs on the upper power shelf, Power A.
e) Repeat Step a through Step d for each of the DC inputs on the lower power shelf, Power B. When power shelf B has

been completed go to Step 5.

If you have an AC power system installed, perform the following steps:

a) Open the circuit breaker for each feed on the PDU (6) A and B or the 12 individual single phase inputs at the circuit

breaker cabinet.
b) If you are using the Cisco AC PDU, connect the 3 phase Delta or Wye plug into the source outlet.
c) Energize the office three phase breakers for sides A and B.
d) Close PM 0 (AB) on the left side PDU (power shelf A) and verify that the In OK LED is on for the PM that is

energized.
e) Repeat Step d for PMs 1-5 on side A and for PMs 0 - 6 side B.

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Installing Power Components

f) Close the power shelf output breaker for side A and verify that the Output LEDs are lit for PMs 0 - 5. Repeat for side

B.

Power Down a Chassis

Step 5
Step 6

Step 7

Step 8

Verify that the fan tray and fan controller LEDs are on and that the fans are running.

Turn the I/O switch at the rear of both upper power shelves (Power A and Power B) to the OFF position. Verify that

none of the Output_OK LEDs on the PMs installed in the shelf are green.

Install all boards (RPs, PLIMs, SFCs, and FPs) in the chassis. For more information, see Chapter 6, “Installing Line

Cards, PLIMs, and Associated Components.”

Turn the I/O switch at the rear of both power shelves (Power A and Power B) to the ON position.

What to Do Next

Note

For appropriate SFC LED information, see the appropriate section in Chapter 6, “Installing Line Cards,

PLIMs, and Associated Components.” or the specific documentation for the card.

Power Down a Chassis

This section describes how to power down a chassis with a AC or DC power shelf.

Steps

To power down the chassis, perform the following steps:

SUMMARY STEPS

DETAILED STEPS

Step 1

Step 2

Step 3

Turn the I/O switches at the rear of both power shelves, Power A and Power B, to the OFF position.

If you have a DC power system installed, remove the power fuse at the BDFB or power plant for each power module

on both power shelves.

If you have an AC power system installed, turn off the source circuit breakers to de-energize the power modules in the

upper and lower power shelves.

Turn the I/O switches at the rear of both power shelves, Power A and Power B, to the OFF position.

1.

If you have a DC power system installed, remove the power fuse at the BDFB or power plant for each

2.

power module on both power shelves.

If you have an AC power system installed, turn off the source circuit breakers to de-energize the power

3.

modules in the upper and lower power shelves.

There is no required order in which you must turn off the power shelves.Note

All DC power cables or AC power cords must be de-energized to fully remove power from the chassis.Note

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Power Down a Chassis

Installing Power Components

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