Nortel Passport 15000 Istruzioni operative

Passport 15000, 20000

Site Requirements and

Preparation Guide

241-1501-205

Passport 15000, 20000

Site Requirements and Preparation Guide

Publication: 241-1501-205

Document status: Standard

Document version: 5.2S2

Document date: February 2004

Printed in Canada

NORTEL NETWORKS, the globemark design, the NORTEL NETWORKS corporate logo, and

Passport are trademarks of Nortel Networks.

ADC is a registered trademark of ADC Telecommunications, Inc.

AMP, MATE-N-LOK, and Z-PACK are trademarks of AMP of Canada, Ltd.

Astec, Helios, MFA150, and Advanced Power Systems are trademarks of Astec Advanced Power

Systems. EdgeLink is a trademark of Telco Systems.

VT100 is a trademark of Digital Equipment Corporation.

Passport 15000, 20000 Site Requirements and Preparation Guide 5.2S2

Publication history

March 2004 5.2S2 Standard

General availability. Contains information on Passport 15000 and

Passport 20000 for the PCR5.2 release.

6Publication history

241-1501-205 5.2S2

Passport 15000, 20000 Site Requirements and Preparation Guide 5.2S2

Contents

About this document 15

Who should read this document and why 15

What you need to know 15

What’s new in this document 16

16-port OC-3/STM-1 POS and ATM FP with PEC NTHW44 17

An additional version of the lower and upper cooling units 17

Enclosing a NEBS 2000 frame with doors and side panels 18

Voice services processor 3 with optical TDM interface

(2pOC3ChSmIrVsp3) 18

Y-protection for dual 16-port OC-3/STM-1 POS and ATM FPs 18

Related documents 19

How to get more help 19

Chapter 1

Safety information 21

Personal safety 22

Safe equipment handling 23

Moving the frame safely 24

Avoiding equipment damage from static electricity 24

Installing the switch safely 26

Storing and transporting circuit cards 28

Compliance with electrical and safety standards 28

Chapter 2

Planning considerations 29

Task ﬂow of planning considerations 29

Task ﬂow navigation 31

8Contents

241-1501-205 5.2S2

Adding a switch to an anchored NEBS 2000 frame 32

Assess air ﬁlter maintenance 33

Assess cable management 35

Task ﬂow of cable management assessment 35

Determining your cable density 37

Managing high-density cabling 40

Managing low-density cabling 42

Managing very high-density coax cabling 43

Placing a ﬁber management unit for cable slack 45

Using custom-made processor card or system cables 47

Assess environmental requirements 49

Operational environment 49

Power dissipation 51

Bulk heat dissipation 52

Prerequisites for your earthquake zone and application 53

Assess power cable location 54

Ceiling requirements 54

Flooring requirements 54

Assess the location of a Passport 15000 or 20000 55

General guidelines for placing the equipment 55

Equipment size and weight 58

Front and rear access to switch hardware 72

Assess the location of a system of ac rectiﬁers 74

Assess the locations of peripheral equipment 76

Choosing the user interface equipment 76

ChoosingthenetworkmanagementcomputerforaPassport 15000

or 20000 77

Deciding where to place local user interface equipment 78

Deciding where to place a sparing or a fanout panel 78

Deciding where to place interworking equipment 80

Interworking with an EdgeLink 100 80

Interworking with a Shasta 5000 82

Deciding which external BIP alarms to connect 82

Using a connection to a gigabit Ethernet port on NTHW84 83

Assess spare parts storage and selection 83

Contents 9

Passport 15000, 20000 Site Requirements and Preparation Guide 5.2S2

Spare processor cards 84

Spare cooling units or cooling unit parts 84

Kits of spare parts for a Passport 15000 or 20000 85

Assess timing requirements 85

Plan for the use of an equivalent mounting apparatus 87

Dimensions and weight rating for the alternate rack 88

Rack and cabinet speciﬁcations 88

Electromagnetic compatibilities for an alternative mounting

apparatus 91

Cooling considerations 91

Preparing your site’s source of power 93

Grounding the switch hardware 93

Chapter 3

Site preparation 95

Task ﬂow of site preparation 95

Task ﬂow navigation 95

Before you begin 96

Safety precautions 96

Tools and equipment required 96

Using the NEBS ﬂoor template 97

Raised ﬂoor openings for processor cables 99

Preparing the ﬂoor for anchor holes 101

Task ﬂow of preparing the ﬂoor 101

Checking the ﬂoor 104

Common procedure used for drilling any ﬂoor 105

When adding extended cable management brackets to a NEBS 2000

frame 111

When adding a door to a NEBS 2000 frame 111

Marking the footprint and the anchor holes on the ﬂoor 112

When anchoring NEBS 2000 frames side-by-side 116

When anchoring ac rectiﬁers near a Passport 118

Chapter 4

Power and grounding preparation 119

Power architecture 120

10 Contents

241-1501-205 5.2S2

Passport 15000-VSS power architecture 121

Power requirements 121

Redundant power feeds 122

Power input through tapping a main 122

Power input from a system of ac rectiﬁers 123

Passport 15000-VSS power requirements 125

Power distribution and consumption 125

Sample calculation of maximum input current 130

Passport 15000-VSS power distribution 131

Preparation for installing power and ground cables 131

Allowing for voltage drop over distance 133

About restricted and non-restricted sites 135

Labeling the power feeds in CPE or a CO 136

Grounding the frame in CPE or a CO 138

Grounding when not using a NEBS 2000 frame 141

Grounding when using ac rectiﬁers as a power source 141

Prerequisites to installing dc power input cables 141

Power cable speciﬁcations 143

Power cable speciﬁcations for a fully provisioned shelf 144

Power cable speciﬁcations for a partially provisioned shelf 146

Power cable speciﬁcations with a polyvalent assembly 147

Power cable speciﬁcations with an ETSI assembly 149

Power cable speciﬁcations when using ac rectiﬁers 152

Power and ground cabling overview 153

Grounding topologies 153

General grounding rules for IBN and CBN topologies 156

Grounding the frame and communication links 157

Grounding a Passport 157

Grounding the communication links 157

Chapter 5

Standards and compliance considerations 159

Product safety/regulatory 160

Grounding standards 161

Powering standards 161

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