Juniper M7i Installation Instructions Manual

Brand: Juniper

Model: M7i

Type: Installation Instructions Manual

This manual is also suitable for

M10i

M7i and M10i Internet Routers Power Supply

Installation Instructions

Par t No: 5

30-009921-01

Revision 1

This docu

ment describes how to remove and replace a power supply on a Juniper Networks

M7iorM10iInternetrouter.

Contents

Power Supply Description ....................................................................... 1

Power Sup

ply Specifications................................................................ 3

Power Supply LED .......................................................................... 4

AC Groundi

ng and Power Cord Specifications............................................. 4

DC Grounding, Connection, and Cable Specifications .................................... 5

Tools and Pa

rts Required ........................................................................ 6

Replace an AC Power Supply .................................................................... 6

Remove an AC P

ower Supply............................................................... 7

Install an AC Power Supply................................................................. 8

ReplaceaDCP

ower Supply ..................................................................... 9

Remove a DC Power Supply................................................................ 9

Install a DC Po

wer Supply ..................................................................11

List of Technical Publications.................................................................... 14

How to Request S

upport......................................................................... 17

Power Supply Description

The router uses either AC or DC power (see Figure 1 and Figure 2). The power supplies are

internally connected to the midplane, which distributes the different output voltages they

produce throu

ghout the system and its components.

An enable control signal on the output connector ensures that the power supply is fully

seated into t

he router midplane before the power supply can be turned on. The enable pin

prevents a user-accessible energy hazard, so there is no interlocking mechanism. The

enable pin disables the voltage at the output connector if the power supply is not turned

off before re

moval.

M7i and M10i Internet Routers Power Supply Installation Instructions 1

Power Supply Desc

ription

On an M7i router, if two power supplies are installed, they are fully redundant and share the

load during normal operation. A single power supply can provide full power for as long as

the router is o

perational. Redundancy is necessary only if one of the power supplies fails.

On an M10i router, if three AC power supplies or four DC power supplies are installed, they

are fully redu

ndant and share the load during normal operation. Two power supplies can

provide full power for as long as the router is operational. Redundancy is necessary only if

one of the power supplies fails.

Power supplies are hot-removable and hot-insertable. Each power supply has a handle to

facilitate removal from the chassis. When one power supply fails or is switched off, the

remaining po

wer supplies immediately and automatically assume the entire electrical load.

Each power supply has an LED that indicates power supply status. Table 3 describes the

LED states.

For a complete list of safety warnings for this router, including

translations, see the hardware guide for your router at

www.juniper.net/techpubs/hardware/.

Figure 1: AC Power Supply

g003208

2 M7iandM10iInternetRoutersPowerSupplyInstallationInstructions

Power Supply Spec

ifications

Figure 2: DC Power Supply

CAUTION

Energy hazard from

contacting components

on midplane

or in card cage.

USE CO

PPER

CONDUCTORS

RTN

-48 V

10 A

g003329

Power Supply Specifications

Ta b l e 1 a n d T

able 2 list the electrical specifications for AC and DC power supplies.

Table 1: Electrical Specifications for AC Power Supply

Description Specification

Maximum power output 293 WDC

AC input voltage Nominal: 100–240 VAC

Operating range: 100–264 VAC

AC input line frequency

47–63 Hz

AC input current rating 6–3 A

Output voltages

+3.3 V @ 40 A, +2.5 V @ 20 A, +5.0 V @ 15 A,

+12 V@ 3 A

Table 2: Electrical Specifications for DC Power Supply

Description Specification

Maximum p

ower output

293 W

DC input voltage Nominal: –48 to –60 VDC

Operating range: –36 to –72 VDC

Input DC current rating 10 A @ –48 V

Output voltages

+3.3 V @ 40 A, +2.5 V @ 20 A, +5.0 V @ 15 A,

+12 V@ 3 A

M7i and M10i Internet Routers Power Supply Installation Instructions 3

AC Grounding and P

ower Cord Specifications

Power Supply LED

Ta b l e 3 d e s c r i

bes the LED on both AC and DC power supplies.

Table 3: States for Power Supply LED

Label Color State Description

On steadily Power supply is functioning normally, input is

occurring, outputs are within range, and the

temperature is within range.

OUTPUT

Green

Blinking Power supply is starting up, is not properly

inserted, or

airflow is not sufficient.

AC Grounding and Power Cord Specifications

To ground an

AC-powered router, plug each power supply into a grounded AC power

receptacle. The receptacle provides the grounding for the router, so no additional grounding

is necessary. The receptacle must be within about 8 ft (2.5 m) of the router and must be

easily acce

ssible.

Detachable AC power cords, each 2.5 m (approximately 8 ft) long, are supplied with the

router. Th

eappliancecoupleratthefemaleendofthecordinsertsintotheapplianceinleton

the faceplate of the AC power supply. The coupler is type C13 as described by International

Electrotechnical Commission (IEC) standard 60320. The plug at the male end of the power

cord fits i

nto the power source receptacle that is standard for your geographical location.

In North America, AC power cords must not exceed 4.5 m (approximately

14.75 ft) in length, to comply with National Electrical Code (NEC) Sections

400-8 (NFPA 75, 5-2.2) and 210-52, and Canadian Electrical Code (CEC)

Section 4-010(3). The cords supplied with the router are in compliance.

Table 4 provides specifications and Figure 3 depicts the plug on the AC power cord provided

for each

country or region.

Table 4: AC Power Cord Specifications

Country Electrical Specification Plug Type

Australia

240 VAC, 50 Hz AC

SAA/3

Europe (except Italy and United Kingdom)

220 or 230 VAC, 50 Hz AC

VII

Italy

230 VAC, 50 Hz AC

I/3/16

4 M7iandM10iInternetRoutersPowerSupplyInstallationInstructions

DC Grounding, Con

nection, and C able Sp ecifications

Country Electrical Sp

ecification

Plug Type

Japan

110VAC,50or60HzAC 498G

North America

120 VAC, 60 Hz AC NEMA 5-15P

United Kingdom

240 VAC, 50 Hz A

BS89/3

Figure 3: AC Plug Types

ItalyEurope UKAustralia

1013

Japan North America

Power cords and cables must not block access to router components or

drape where people could trip on them.

DC Grounding, Connection, and Cable Specifications

To ground a DC-powered router, connect a grounding cable to earth ground and then attach it

to one of the chassis grounding points on the rear of the chassis. To supply power to the

router, connect power cables to a separate, dedicated DC power source for each power supply

and attach the cables to the field-wiring terminals on each power supply. Most sites distribute

DC power through a main conduit that leads to frame-mounted DC power distribution panels,

one of which might be located at the top of the rack that houses the router. A pair of cables

(one input and one return) connects the field-wiring terminals to the power distribution panel.

Table 5 summarizes the specifications for the grounding and power cables, which you supply.

Table 5: DC Power and Grounding Cable Specifications

Cable Type Quantity and Specification

Maximum

Equal

Length

Power

Two 14-AWG (2.5 mm

) single-strand-count wire cables for

each power supply

None

Grounding One 14-AWG (2.5 mm

) single-strand-count wire cable

None

M7i and M10i Internet Routers Power Supply Installation Instructions 5

Replace an AC Pow e

r Supply

For field-wiring connections, use copper conductors only.

Figure 12 and Figure 13 show how to attach the grounding and power cables. The grounding

cable attach

es to the grounding points on the router above the power supplies. The power

cables insert into the field-wiring terminals located on each power supply— the input

terminal is labeled -48V and the return terminal is labeled RTN.

Before rout

er installation begins, a licensed electrician must attach a cable

lug to the grounding and power cables that you supply. A cable with an

incorrectl

y attached lug can damage the router (for example, by causing

ashortcircuit).

Power cords and cables must not block access to router components or

drape whe

re people could trip on them.

Tools and Parts Required

To replace a power supply, you need the following tools and parts:

• Electrostatic bag or antistatic mat

• Electro

static discharge (ESD) grounding wrist strap

• Phillips (+) screwdrivers, numbers 1 and 2

Replace an AC Power Supply

To replace an AC power supply, perform the following procedures:

• Remove a

n AC Power Supply on page 7

• Install an AC Power Supply on page 8

6 M7iandM10iInternetRoutersPowerSupplyInstallationInstructions

Remove an AC Power

Supply

Remove an AC Power Supply

To remove an AC

power supply, follow this procedure (see Figure 4 and Figure 5):

1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect

the strap to on

e of the ESD points on the chassis.

2. Press the pow

er switch on the power supply faceplate to the OFF (O)position.

Ifyouarenotremovingthepowersupply,butsimplypoweringitoff,waitat

least 60 seconds before turning it back on. If you need to power it off again,

wait for at least 60 seconds after powering it on.

3. Unplug the power co

rd from the appliance inlet on the faceplate.

4. Loosen the thumbs

crew at each corner of the power supply faceplate, using a Phillips

screwdriver if necessary.

5. Grasp the handle on the power supply faceplate and pull firmly to slide the unit

abouthalfwayoutofthechassis.

6. Place one hand under the power supply to support it, then slide it completely out of

the chassis.

Figure 4: Remove an AC Power Supply from an M7i Router

g003210

M7i and M10i Internet Routers Power Supply Installation Instructions 7

Install an AC Powe

r Sup ply

Figure 5: Remove an AC Power Supply from an M10i Router

FAN

Y O

NTRA

Y 1

NOTE:

C-FEB 0

C-FEB 1

P/S

P/S 1

P/S 0

P/S 0 AND P/S 1 MUST BE PRESENT

FOR NORMAL OPERATION.

g003310

Install an AC Power Supply

To install

an AC power supply, follow this procedure (see Figure 6 and Figure 7):

1. Verify that the switch on the power supply faceplate is in the OFF (O)position.

2. Locate the power cord shipped with the router, which should be appropriate for your

geograph

ical location.

3. Attach an

electrostatic discharge (ESD) grounding strap to your bare wrist and connect

the strap to one of the ESD points on the chassis.

4. Place one hand under the power supply and grasp the handle on the faceplate with the

other hand. Slide the power supply into the chassis until it contacts the midplane.

5. Starting with the bottom screw, tighten (but do not overtighten) the thumbscrews at

each co

rner of the power supply faceplate.

6. Insert

the appliance coupler end of the power cord into the appliance inlet on the power

supply faceplate and insert the plug into an AC power source receptacle. Verify that

the power cord does not block access to router components or drape where people

could

trip on it.

7. Press

the power switch on the faceplate to the ON ( | ) position.When the power supply

has powered on successfully, the green OUTPUT OK LED lights steadily.

8 M7iandM10iInternetRoutersPowerSupplyInstallationInstructions

Remove a DC Power S

upply

Figure 6: Install an AC Power Supply in an M7i Router

g003209

Figure 7: Install an AC Power Supply in an M10i Router

Y O

FAN

NOTE:

C-FEB 0

C-FEB 1

P/S

P/S 0

P/S 0 AND P/S 1 MUST BE PRESENT

FOR NORMAL OPERATION.

g003309

Replace a DC Power Supply

To replace a DC power supply, perform the following procedures:

• Remove a DC Power Supply on page 9

• Install a DC Power Supply on page 11

Remove a DC Power Supply

To remove a DC power supply, follow this procedure (see Figure 8 and Figure 9):

1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect

the strap to one of the ESD points on the chassis.

M7i and M10i Internet Routers Power Supply Installation Instructions 9

Remove a DC Power S

upply

2. Press the power switch for the power supply (located on the power supply faceplate) to

the OFF (O) position.

If you are power cycling the power supply rather than shutting it off for a

time, wait at least 60 seconds after turning it off before turning it back on. If

you need to power it off again, wait for at least 60 seconds after powering

it on.

3. Shut off the power flowing to the power supply from the external power source, so that

the voltage across t

he leads of the power cables is 0 V. Ensure that there is no chance

that the cable leads might become active during the procedure.

4. Loosen the screws securing the clear cover over the field-wiring terminals and remove

the cover.

5. Using a #1 Phillips screwdriver, turn the screw on each field-wiring terminal

counter-clockwi

se to loosen the terminal connector from around the cable.

6. Remove the cables

from the terminal connectors and from the hook located on the

faceplate to the right of the field-wiring terminal.

7. Loosen the thumbscrew at each corner of the power supply faceplate, using a Phillips

screwdriver if necessary.

8. Grasp the handle on the power supply faceplate and pull firmly to slide the unit

about halfway o

ut of the chassis.

9. Place one hand u

nder the power supply to support it, then slide it completely out of

the chassis.

Figure 8: Remove a DC Power Supply from an M7i Router

g003242

10 M7i and M10i Internet Routers Power Supply Installation Instructions

Install a DC P ow e r

Supply

Figure 9: Remove a DC Power Supply from an M10i Router

FAN

TRA

Y O

NTR

AY 1

NOTE:

C-FEB 0

C-FEB 1

P/S 2

P/S 1

P/S 0

P/S 0 AND P/S 1 MUST BE PRESENT

FOR NORMAL OPERATION.

g003334

Install a D

C Power Supply

To install a DC power supply, follow this procedure (see Figure 10, Figure 11, Figure 12, and

Figure 13)

1. Verify that there is no power flowing to the power supply from the external power

source, s

o that the voltage across the leads of the power cables is 0 V. Ensure that there

is no chance that the cable leads might become active during the procedure.

2. Verify that the power switch for the power supply (located on the power supply

faceplate) is in the OFF (O)position.

3. Verify that the grounding cable is attached to the chassis and properly connected to

an earth

ground.

4. Attach

an electrostatic discharge (ESD) grounding strap to your bare wrist and connect

the strap to one of the ESD points on the chassis.

5. Place one hand under the power supply and grasp the handle on the faceplate with the

other hand. Slide the power supply into the chassis until it contacts the midplane.

6. Starting with the bottom screw, tighten (but do not overtighten) the thumbscrews at

each c

orner of the power supply faceplate.

7. Verif

y that a licensed electrician has attached a listed power cable lug to each power

source cable.

8. Loop the power cables through the hook located on the faceplate to the right of the

field-wiring terminals.

9. Depending on the type of power cable lugs used, loosen or remove the screws on the

fiel

d-wiring terminals.

M7i and M10i Internet Routers Power Supply Installation Instructions 11

Install a DC P ow er

Supply

10. Insert the power cable lugs into the appropriate field-wiring terminals:

• Insert the positive (+) source cable into the return terminal, which is labeled RTN.

• Insert the neg

ative (–) source cable into the input terminal, which is labeled –48V.

11. Usinga#1Phillipsscrewdriver,turnthescrewoneachfield-wiringterminalclockwise

to secure the p

ower cable lug.

12. Verify that t

he DC source power cabling and the grounding cabling are correct, that

they are not touching or blocking access to router components, and that they do not

drape where people could trip on them.

13. Turn on the DC power source so that voltage flows to the power supply.

14. Press the switch on the power supply faceplate to the ON ( | ) position.When the power

supply has p

owered on successfully, the green OUTPUT OK LED lights steadily.

Figure 10: Install a DC Power Supply in an M7i Router

g003241

Figure 11: Install a DC Power Supply in an M10i Router

FAN

AY 1

NOTE:

C-FEB 0

C-FEB 1

P/S 3

P/S 2

P/S

P/S 0 AND P/S 1 MUST BE PRESENT

FOR NORMAL OPERATION.

g003333

12 M7i and M10i Internet Routers Power Supply Installation Instructions

Install a DC P ow e r

Supply

Figure 12: Connect Power Cables to a DC Power Supply on an M7i Router

g003243

To ground

Grounding lug

M7i and M10i Internet Routers Power Supply Installation Instructions 13

List of Technical

Publications

Figure 13: Connect Power Cables to a DC Power Supply on an M10i Router

Y 1

-F

-FE

P/S 3

P/S

/S 1

P/S 0 A

/S 1 M

ATIO

g003330

Grounding

points

To ground

List of

Technical Publications

Table 6 lists the software and hardware books for Juniper Networks routers and describes the

conten

ts of each book.

Table 6: Juniper Networks Technical Documentation

Book Description

JUNOS Internet Software Configuration Guides

Feature Guide

Provides a detailed explanation and configuration examples for

several of the most complex features in the JUNOS software.

Getting Started

Provides an overview of the JUNOS Internet software and

describes how to install and upgrade the software. This

manual also describes how to configure system management

functions and how to configure the chassis, including user

accounts, passwords, and redundancy.

14 M7i and M10i Internet Routers Power Supply Installation Instructions

List of Technical

Publications

Book Description

Network Interfaces and

Class of Service

Provides an overview of the network interface and

class-of-service functions of the JUNOS Internet software and

describes how to configure the network interfaces on the

router.

MPLS Applications

Provides an overview of traffic engineering concepts and

describes how to configure traffic engineering protocols.

Multicast

Provides an overview of multicast concepts and describes how

to configure m

ulticast routing protocols.

Network Management

Provides an overview of network management concepts and

describes how to configure various network management

features, such as SNMP, accounting options, and cflowd.

Policy Framework

Provides an overview of policy concepts and describes how

to configure routing policy, firewall filters, and forwarding

options.

Routing and Routing

Protocols

Provides an overview of routing concepts and describes how

to configure

routing, routing instances, and unicast routing

protocols.

Services Interfaces

Provides an overview of the services interfaces functions of the

JUNOSsoftwareanddescribeshowtoconfiguretheservices

interfaces on the router.

VPNs

Provides an overview and describes how to configure Layer

2 and Layer 3 Virtual Private Networks (VPNs), Virtual

Private LAN Service (VPLS), and Layer 2 circuits. Provides

configuration examples.

JUNOS Inter

net Software References

Operational Mode

Command Reference:

Interfaces

Describes the JUNOS Internet software operational mode

commands you use to monitor and troubleshoot network and

services interfaces on Juniper Networks M-series and T-series

routers.

Operational Mode

Command Reference:

Protocols, Class of

Service, Chassis, and

Management

Describes the JUNOS Internet software operational mode

commands you use to monitor and troubleshoot most aspects

of Juniper Networks M-series and T-series routers.

System Log Messages

Reference

Describes h

ow to access and interpret system log messages

generated by JUNOS software modules and provides a

reference p

age for each message.

JUNOScript API Documentation

JUNOScript API Guide

Describes how to use the JUNOScript API to monitor and

configure Juniper Networks routers.

JUNOScrip

tAPIReference

Provides a reference page for each tag in the JUNOScript API.

JUNOS Internet Software Comprehensive Index and Glossary

Comprehensive Index

and Glossary

Provides a complete index of all JUNOS Internet software

books and the JUNOScript API Guide.Alsoprovidesa

comprehensive glossary.

Hardware Documentation

M7i and M10i Internet Routers Power Supply Installation Instructions 15

List of Technical

Publications

Book Description

Hardware Guide

Describes how to install, maintain, and troubleshoot routers

and router components. Each platform has its own hardware

guide.

PIC Guide

Describes the router Physical Interface Cards (PICs). Each

router platform has its own PIC guide.

JUNOScope Software Documentation

JUNOScope Software

Guide

Describes the JUNOScope software graphical user interface

(GUI), how to install and administer the software, and how

to use the software to manage router configuration files and

monitor router operations.

Release Notes

JUNOS Internet Software

Release Note

Provideasum

mary of new features for a particular software

release. Software release notes also contain corrections and

updates to pu

blished JUNOS and JUNOScript manuals, provide

information that might have been omitted from the manuals,

and describe

upgrade and downgrade procedures.

Hardware Release Notes

Describe the available documentation for the router platform

and summarize known problems with the hardware and

accompanying software. Each platform has its own release

notes.

JUNOScope Software

Release Notes

Contain corrections and updates to the published JUNOScope

manual, provide information that might have been omitted

from the manual, and describe upgrade and downgrade

procedures.

16 M7i and M10i Internet Routers Power Supply Installation Instructions

How t o Request Sup

port

How to Request Support

For technical

support, contact Juniper Networks at support@juniper.net, or at 1-888-314-JTAC

(within the United States) or 1-408-745-9500 (from outside the United States).

Revision Hist

ory

22 September 2003—First edition.

This product includes the Envoy SNMP Engine, developed by Epilogue Technology, an Integrated Systems Company. Copyright

at private expense, and no part of them is in the public domain.

This product includes FreeBSD software developed by the University of California, Berkeley, and its contributors. All of the documentation and

3.0 by Cornell University and its collaborators. Gated is based on Kirton’s EGP, UC Berkeley’s routing daemon (routed), and DCN’s HELLO routing

Juniper Networks is registered in the U.S. Patent and Trademark Office and in other countries as a trademark of Juniper Networks, Inc. ERX,

ESP, E-series, Internet Processor, J-Protect, JUNOS, JUNOScript, JUNOSe, M5, M7i, M10, M10i, M20, M40, M40e, M160, M-series, NMC-RX, SDX

T320, T640, and T-series are trademarks of Juniper Networks, Inc. All other trademarks, servicemarks, registered trademarks, or registered

service marks are the property of their respective owners. All specifications are subject to change without notice.

M7i and M10i Internet Routers Power Supply Installation Instructions 17

Juniper M7i Installation Instructions Manual

Brand: Juniper

Model: M7i

Type: Installation Instructions Manual

This manual is also suitable for

M10i

Download PDF

report

Juniper M7i Installation Instructions Manual

This manual is also suitable for

Juniper M7i Installation Instructions Manual

Related papers

Other documents