Nortel Versalar 15000 Guide

Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120

Document status: Standard
Document issue: sPCR6.1S1
Document date: February 2005
Product release: sPCR6.1
Job function: Product Fundamentals
Type: NTP
Language type: U.S. English
Copyright © 2005 Nortel Networks.
All Rights Reserved.
NORTEL, NORTEL NETWORKS, the globemark design, and the NORTEL NETWORKS corporate
logo are trademarks of Nortel Networks.

Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
Contents
About this document 10
Who should read this document and why 10
What you need to know 10
What’s new in this document 11
4-port MR POS and ATM FP with PEC NTHW46 12
Fabric card NTHR16EA 13
Recurring fan alarm 13
CP support and CP/VPNXc warm standby equipment protection 13
Voice services processor 3 with optical TDM interface (2pOC3ChSmIrVsp3) 13
Related documents 13
How to get more help 14
Introducing Multiservice Switch 15000 and Multiservice
Switch 20000 hardware 15
Multiservice Switch 15000 overview 15
Multiservice Switch 15000 VSS overview 17
Multiservice Switch 20000 overview 19
Architecture of a Multiservice Switch 15000 or Multiservice Switch 20000 21
Mounting apparatus overview 22
Breaker interface panel overview 23
Shelf assembly overview 23
Control and function processors overview 23
Upgrading processor cards 24
Cables and cable management overview 24
Peripheral interworking equipment 24
Equipment status of a Multiservice Switch 15000 or Multiservice Switch 20000 25
Hardware parts that can be replaced or upgraded 25
Switch hardware mounting apparatuses 26
Anchors for a NEBS 2000 frame 27
Cable management on the mounting apparatus 31
NEBS 2000 frame enclosure 32
Enclosing the frame with doors and extended side panels 32
Enclosing the frame with regular side panels and frame cover panels 33

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Contents
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
Breaker interface panel 36
Front cover of the BIP 38
Breaker interface modules (BIMs) 38
BIP with two or four BIMs 39
Location of the BIMs 39
Functions of the BIMs 39
BIMs distributing power to PIMs 40
Combined BIM pairs in a BIP 43
Front panel of a BIM 44
BIM power filters 45
BIM filler plates 45
Alarm module 45
Location of the BIP alarm module 46
Functions of the BIP alarm module 46
Front panel of the BIP alarm module 46
Hardware alarm definitions and behaviors 48
BIP alarm LED board 50
Alarm cable connectors 51
Location of the BIP alarm connectors 51
Functions of the BIP alarm connectors 52
Features of the BIP alarm connectors 52
BIP alarm connections from a system of ac rectifiers 54
Power connections to and from the BIP backplane 55
Location of the BIP backplane power connections 55
Function of the BIP backplane power input connections 56
Hardware for connecting power input cables to the BIP 57
Using an optional power-and-ground assembly 58
Function of the BIP backplane power output connections 60
Sources of dc input power to the BIP backplane 62
Powering the BIP from ac rectifiers 63
Grounding the switch and interworking equipment 64
Shelf assembly 66
Common backplane 70
Backplane location and physical description 71
Function of the common backplane 71
Fabric cards 73
Function and operation of fabric cards 73
Fabric LED behavior is different from FPs 75
Fabric card location and physical description 76
Fabric card carrier 79
Fabric card transportation 81
Fabric replacement can affect traffic 83
Fabric replacement can affect system cooling 84

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Contents
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
Fabric replacement may require a firmware upgrade 85
Fabric replacement may require a software patch 86
Power interface modules (PIMs) 87
Location and physical description of the PIMs 87
PIM faceplate 87
Power LED status indicators for PIMs 89
PIM cable assembly 90
Media access control (MAC) address module 92
Alarm/BITS module 93
Types of alarm/BITS modules 94
Alarm/BITS module faceplate 95
Alarm/BITS module cable assemblies 100
Timing cable specifications for the DS1 circuit 101
Timing cable specifications for the E1 balanced circuit 101
Timing cable specifications for the E1 unbalanced circuit 102
Line build out application settings 103
Cooling units 104
Environmental control equipment 106
The impact of heat dissipation on rising shelf temperatures 109
Fans 111
Fan controllers 111
Air filters 111
Temperature sensors 112
Cooling unit LED indications 112
Cooling unit connections 112
Control and function processors 114
Connecting a Multiservice Switch node to another node 115
Connecting two Multiservice Switch nodes 115
Connecting nodes through Multiservice Switch 15000 VSS 116
Connecting Multiservice Switch 15000 or Multiservice Switch 20000 node to a
SER 5500 116
Connecting a Multiservice Switch 15000 or Multiservice Switch 20000 node to an
EdgeLink 100 117
Blank processor card 119
Control processors 121
CP hardware 124
CP software requirements 124
CP cables 125
Ethernet CP pinout and signal names 128
V.24 CP pinout and signal names 129
CP line rate 129
CP compliance with standards 129
Ethernet compliance with standards 130

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Contents
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
2-port DS3Ch TDM FP 131
2-port DS3Ch TDM line connections 132
2-port DS3Ch TDM cable assemblies 133
Assigning sparing panel connections for 2-port DS3C TDM FPs 134
4-port DS3Ch FR FP 136
4-port DS3 FR FP line connections 137
4-port DS3 FR FP cable assemblies 137
Assigning sparing panel connections for 4-port DS3 FPs 140
4-port DS3Ch ATM FP with IMA 144
4-port DS3Ch ATM FP with IMA line connections 144
4-port DS3Ch ATM FP with IMA cable assemblies 145
4-port DS3Ch FP with AAL1 CES 148
4-port DS3Ch FP with AAL1 CES line connections 148
4-port DS3Ch FP with AAL1 CES cable assemblies 149
12-port DS3 FP 152
12-port DS3 FP line connections 153
12-port DS3 FP cable assemblies 153
Assigning sparing panel connections for a 12-port DS3 or E3 FP 156
32-port E1 TDM FP 160
32-port E1 TDM line connections 161
32-port E1 TDM cable assemblies 162
Assigning sparing panel connections for 32-port E1 TDM FPs 163
12-port E3 ATM FP 165
12-port E3 FP line connections 166
12-port E3 FP cable assemblies 166
2-port general processor with disk 170
2-port GPDsk components 171
2-port GPDsk pinout and signal names 171
100BaseT Ethernet cable assembly 171
4-port Gigabit Ethernet FP 172
4-port Gigabit Ethernet cable assemblies 173
Custom-making an LC cable assembly for an NTHW49 174
SFP modules for an NTHW49 175
6-module packet server FP 176
6mPktServSP components 177
6mPktServSP sparing 178
6mPktServSP configuration 178
4-port MR POS and ATM FP 179
Cable assemblies for a 4-port MR POS and ATM FP 181
SFP modules for an NTHW46 181
Optical interface characteristics for a 4-port MR POS and ATM FP 181
4-port OC-3/STM-1 ATM FPs 184
4-port OC-3/STM-1 ATM FP cable assembly 185

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Contents
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
4-port OC-3/STM-1 ATM FP optical interface characteristics 186
4-port OC-3/STM-1Ch TDM/CES FP 188
4-port OC-3/STM-1Ch TDM/CES FP cable assembly 188
4-port OC-3/STM-1Ch TDM/CES FP optical interface characteristics 189
16-port OC-3/STM-1 ATM FP with MT-RJ connectors 191
Cable assemblies for an NTHW21 191
Optical interface characteristics for an NTHW21 192
16-port OC-3/STM-1 ATM FP with LC connectors 194
Cable assemblies for an NTHW31 194
Cable specifications for custom-making LC cable assemblies 195
Optical interface characteristics for an NTHW31 196
16-port OC-3/STM-1 ATM FP with OAM cell conversion 198
Cable assemblies for an NTHW24 198
Cable specifications for custom-making LC cable assemblies 198
16-port OC-3/STM-1 POS and ATM FP 199
Cable assemblies for an NTHW44 200
Cable specifications for custom-making female MT-RJ to male LC cable
assemblies 200
SFP modules for an NTHW44 202
Optical interface characteristics for an NTHW44 202
Cable specifications for custom-making LC cable assemblies 205
Specifications for Y-splitter cable assemblies for Y-protection 206
1-port OC-12/STM-4 FP 210
1-port OC-12/STM-4 FP cable assembly 210
1-port OC-12/STM-4 FP optical interface characteristics 211
4-port OC-12/STM-4 ATM FP 213
4-port OC-12/STM-4 ATM FP cable assembly 214
4-port OC-12/STM-4 ATM FP optical interface characteristics 215
1-port OC-48/STM-16 ATM FP with APS 217
1-port OC-48/STM-16 ATM FP with APS cable assembly 217
1-port OC-48/STM-16 ATM FP with APS optical interface characteristics 218
1-port STM-1Ch FP 220
1-port STM-1 FP cable assembly 220
1-port STM-1 FP optical interface characteristics 221
VPN extender card 223
VpnXc components 225
VpnXc configuration 225
VpnXc sparing 225
VpnXc compliance with standards 226
Voice services processor 2 (VSP2) FP 227
Voice services processor 3 (VSP3) FP 228
VSP3 line connections 228
VSP3 cable assemblies 229
VSP3 sparing 230

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Contents
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
Equipment to interface VSP3 Ethernet ports 231
Voice services processor 3 with optical TDM interface (VSP3-o) FP 235
VSP3-o FP line connections 236
VSP3-o FP cable assembly 236
SFP optical modules 239
SFP optical module cable assemblies 240
Optical module compliances 241
Termination panels for FPs 242
Basic functionality and operation of a sparing panel 243
Common characteristics of a sparing panel 244
Power source of a sparing panel 245
Basic functionality and operation of a fanout panel 246
12-port DS3 or E3 fanout panel NTHW52 248
Assigning the fanout panel cable connections 249
Assigning 12-port DS3 or E3 fanout panel connections 249
12-port DS3 or E3 sparing panel NTQS31 251
Testing a transmit port on the NTQS31 252
4-port DS3 sparing panel NTHR79 254
3-port DS3, E3, or E1 sparing panel NTFP99AA 256
Multiport aggregate device for a 32-port E1 TDM 258
Multiport aggregate device connections and cabling 260
Multiport aggregate device power and grounding requirements 260
Multiport aggregate device LEDs 260
Multiport aggregate device alarms 261
Dimensions of the termination panels 262
Understanding sparing panel replacement 263
Cables and cable management 265
Managing power cables 265
Managing telecom cables 265
Basic cable management brackets for low-density cabling 266
Cable management brackets for high-density cabling 269
High-density cable management brackets 269
Very high-density cable management brackets 270
Hardware to manage fiber cable slack near the node 273
Location of specific FP cables in a bundle 275
Cabling a card with or without a termination panel 277
Preparing OC or STM fiber distribution cables 278
LC fiber cables and connectors 279
MT-RJ fiber cables and connectors 280
Preparing coax distribution cables 281
Preparing control port cables 283
Handling alarm cables 284
Prefabricated DS3 or E3 cable assemblies 284

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Contents
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
Using status indicator LEDs and sounds 287
Follow-me LEDs 288
What to do when a lit red LED is detected 288
What to do when a lit amber LED is detected 288
Hierarchy of LEDs and sounds 289
Status LEDs of a BIP alarm module 290
Testing the LEDs 290
Status LEDs of a BIM 292
Status LEDs of a PIM 293
Status LEDs of a fabric 295
Status LEDs of fabric cards in a Multiservice Switch 15000 295
Status LEDs of fabric cards in a Multiservice Switch 20000 296
Status LEDs of a CP or an FP card 299
Status LEDs of a CP 300
Status LEDs of an FP 301
Status LEDs of the Ethernet ports on an NTHW49 302
Status LEDs of a sparing panel 304
Status LEDs of a cooling unit fan 306
Turning off the audible alarm 307
Field replaceable units 308
FRUs that plug into or get screwed onto a switch or frame 309
FP cards, SFP modules, and termination panels 310
Control processor (CP) cards 312
FRUs for an MFA150 system of ac rectifiers 322

Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
About this document
The information in this document describes the hardware parts and
subassemblies for housing a Nortel Networks Multiservice Switch 15000 or
Multiservice Switch 20000 in a Network Equipment Building System (NEBS)
frame or equivalent mounting apparatus. The frame has product engineering
code (PEC) NTRU04.
The following topics are discussed in this section:
•Who should read this document and why (page 10)
•What you need to know (page 10)
•What’s new in this document (page 11)
•Related documents (page 13)
•How to get more help (page 14)
Who should read this document and why
This document is intended for use by:
• hardware maintenance personnel
• hardware installation personnel
• network planners
• network engineers
What you need to know
You should be familiar with fundamental data communications and basic
electronic concepts and terms. You can acquire product knowledge by reading
NN10600-030 Nortel Networks Multiservice Switch 7400/15000/20000
Overview.
Only information specific to Nortel Networks Multiservice Switch 15000 and
Multiservice Switch 20000 hardware is contained in this guide.

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About this document
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
What’s new in this document
The following features were added to this document:
•4-port MR POS and ATM FP with PEC NTHW46 (page 12)
•CP support and CP/VPNXc warm standby equipment protection
(page 13)
•Fabric card NTHR16EA (page 13)
•Recurring fan alarm (page 13)
•Voice services processor 3 with optical TDM interface
(2pOC3ChSmIrVsp3) (page 13)
Other changes made to this document include the following:
• rebranded the terms Passport and PVG in conjunction with the new Nortel
Networks’ brand simplified naming format. Passport is now referred to as
the Nortel Networks Multiservice Switch, and PVG is now Media Gateway
7480/15000. For more information on the product rebranding, refer to
NN10600-000 Nortel Networks Multiservice Switch 7400/15000/20000
What’s New in PCR6.1.
• changed the Caution regarding the class B status of equipment in What
you need to know (page 10)
• updated the title of the document for an Astec MFA150 system of ac
rectifiers in Related documents (page 13)
• added the chapter Switch hardware mounting apparatuses (page 26) to
consolidate frame information
• added new anchoring kits NTRU0328 and NTRU0302 to
—Anchors for a NEBS 2000 frame (page 27)
— the table NEBS 2000 frame accessories and other filler hardware
(page 318)
• added Cable specifications for custom-making female MT-RJ to male LC
cable assemblies (page 200)
• indicated in the following sections the circumstances by which both ends
of an interface cable connection are grounded for an electrical FP:
—2-port DS3Ch TDM cable assemblies (page 133)
WARNING
Risk of radio interference
Multiservice Switch 15000, Multiservice Switch 15000 VSS, and
Multiservice Switch 20000 are class A and class B compliant for
radio interference.

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About this document
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
—4-port DS3 FR FP cable assemblies (page 137)
—4-port DS3Ch ATM FP with IMA cable assemblies (page 145)
—4-port DS3Ch FP with AAL1 CES cable assemblies (page 149)
—12-port DS3 FP cable assemblies (page 153)
—32-port E1 TDM cable assemblies (page 162)
—12-port E3 FP cable assemblies (page 166)
• added the section 16-port OC-3/STM-1 ATM FP with OAM cell conversion
(page 198) for card NTHW24
• updated the figure A plastic cable management bracket P0937935
(page 268) to show the notch
• added a fiber cable guide to the figure of the faceplate of the following FPs
and added the optional retrofit kit NTPS40 with the same guide to their
cable assembly descriptions:
—4-port Gigabit Ethernet FP (page 172)
—16-port OC-3/STM-1 ATM FP with MT-RJ connectors (page 191)
—16-port OC-3/STM-1 ATM FP with OAM cell conversion (page 198)
—16-port OC-3/STM-1 ATM FP with LC connectors (page 194)
—16-port OC-3/STM-1 POS and ATM FP (page 199)
• updated the description SFP optical modules (page 239) to add the
modules’ relationship with software configuration
• added a Caution regarding the grounding of interface cables in Managing
telecom cables (page 265)
• increased the number of air filters to 10 in the tables Spare parts kit
NTQS29AB for a Multiservice Switch 15000 (page 314) and Spare parts
kit NTQH29AB for a Multiservice Switch 20000 (page 315)
• removed all mention of the 1-port OC-48/STM-16 POS FP with PEC
NTHW39 and card type 1pOC48SmIrPos since it is service discontinued
(SDed)
4-port MR POS and ATM FP with PEC NTHW46
The following sections were updated for this feature:
•4-port MR POS and ATM FP (page 179)
•SFP optical modules (page 239)
•FP cards, SFP modules, and termination panels (page 310)

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About this document
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
Fabric card NTHR16EA
The following have been updated for this feature:
• the table Features of a 40 Gbit/s Multiservice Switch 15000 fabric card
pre-NTHR16EA (page 76)
• the table Features of a 40 Gbit/s Multiservice Switch 15000 fabric card
NTHR16EA (page 77)
•thesectionFabric replacement can affect system cooling (page 84)
•thesectionFabric replacement may require a software patch (page 86)
Recurring fan alarm
The following sections were updated for this feature:
•Hardware alarm definitions and behaviors (page 48)
•Fabric replacement can affect system cooling (page 84)
•Alarm/BITS module (page 93)
•Status LEDs of a BIP alarm module (page 290)
•The impact of heat dissipation on rising shelf temperatures (page 109)
CP support and CP/VPNXc warm standby equipment protection
The following section was updated for this feature:
•VpnXc sparing (page 225)
Voice services processor 3 with optical TDM interface
(2pOC3ChSmIrVsp3)
The following section was updated for this feature.
•VSP3-o FP line connections (page 236)
Related documents
See the following documents for related information:
• NN10600-001 Nortel Networks Multiservice Switch 7400/15000/20000
About the Documentation
• NN10600-002 Nortel Networks Using Task-based Documentation Job Aid
• NN10600-005 Nortel Networks Multiservice Switch 7400/15000/20000
Terminology
• NN10600-030 Nortel Networks Multiservice Switch 7400/15000/20000
Overview
• NN10600-125 Nortel Networks Multiservice Switch 15000/20000
Planning Site Requirements

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About this document
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
• NN10600-130 Nortel Networks Multiservice Switch 15000/20000
Hardware Installation, Maintenance, and Upgrade
• NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000
Common Configuration Procedures
• NN10600-551 Nortel Networks Multiservice Switch 7400/15000/20000
FP Configuration Reference
• NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware
Description
• UM6C28C (167-9021-102) MFA150 Modular Front Access Power System
-- Nt6C28C User Manual from Astec Advanced Power Systems
• UM6C28D (167-9021-107) Modular Front Access Power System MFA150
NT6C28D User Manual from Astec Advanced Power Systems
• 167-9021-133 Advanced Power Systems MFA150 Modular Front Access
Power System Detailed Installation Guidelines and Procedures Manual
How to get more help
For information on training, problem reporting, and technical support, see the
“Nortel Networks support services” section in the product overview document.

Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
Introducing Multiservice Switch 15000
and Multiservice Switch 20000 hardware
This section provides an introduction to Nortel Networks Multiservice
Switch 15000 and Multiservice Switch 20000 hardware
Where appropriate, each of the topics provides a cross-reference to the
section or sections where more detailed information is located.
Navigation
•Multiservice Switch 15000 overview (page 15)
•Multiservice Switch 20000 overview (page 19)
•Architecture of a Multiservice Switch 15000 or Multiservice Switch 20000
(page 21)
•Mounting apparatus overview (page 22)
•Breaker interface panel overview (page 23)
•Shelf assembly overview (page 23)
•Control and function processors overview (page 23)
•Cables and cable management overview (page 24)
•Peripheral interworking equipment (page 24)
•Equipment status of a Multiservice Switch 15000 or Multiservice
Switch 20000 (page 25)
•Hardware parts that can be replaced or upgraded (page 25)
Multiservice Switch 15000 overview
A Nortel Networks Multiservice Switch 15000 is a high-capacity ATM node,
which can act as a backbone or edge node to an ATM network.
Each Multiservice Switch 15000 supports electrical and optical interfaces with
a variety of speeds from E3 up to STM-16 and from DS3 up to OC-48.

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Introducing Multiservice Switch 15000 and Multiservice Switch 20000 hardware
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
Multiservice Switch 15000 nodes support two types of timing source: building
integrated timing supply (BITS) to the alarm/BITS module, and line timing to
a fiber optic functional processor (FP). The node can receive the external
timing signal from BITS or line timing, and distribute either signal throughout
the switch. That is, a Multiservice Switch 15000 simultaneously supports a
combination of BITS and line timing.
The figure Two Multiservice Switch 15000 or Multiservice Switch 20000
nodes in a NEBS 2000 frame (page 17) shows two nodes mounted in one
frame. The front view of a Multiservice Switch 20000 is very similar to a
Multiservice Switch 15000.

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Introducing Multiservice Switch 15000 and Multiservice Switch 20000 hardware
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
Two Multiservice Switch 15000 or Multiservice Switch 20000 nodes in a NEBS 2000 frame
By combining a Multiservice Switch 15000 node with another Nortel Networks
node, or by upgrading plug-in cards or modules, additional services,
functionality, or capacities are provided. See the section Multiservice
Switch 15000 VSS overview (page 17).
Multiservice Switch 15000 VSS overview
A Nortel Networks Multiservice Switch 15000 Variable Speed Switch (VSS) is
an integrated edge node and a core multi-service node. Multiservice
Switch 15000 VSS offers low speed accessibility at the edge of a network and
MSS 3159 001 AA
NEBS2000
frame
Multiservice
Switch 15000
or 20000
Multiservice
Switch 15000
or 20000

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Introducing Multiservice Switch 15000 and Multiservice Switch 20000 hardware
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
high-speed switching at the core of a network. A Multiservice
Switch 15000 VSS is a Multiservice Switch 7400 packaged within a
Multiservice Switch 15000.
In addition to ATM, a Multiservice Switch 15000 VSS delivers a wide range of
standard-based high-speed interfaces and services, including frame relay,
circuit emulation, voice, and IP. These interfaces provide a wide variety of
access and trunking speeds from channelized DS0 to OC-48.
The figure A Multiservice Switch 15000 VSS node in a NEBS 2000 frame
(page 19) shows the main parts and subassemblies of a switch in a frame.

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Introducing Multiservice Switch 15000 and Multiservice Switch 20000 hardware
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
A Multiservice Switch 15000 VSS node in a NEBS 2000 frame
Multiservice Switch 20000 overview
A Nortel Networks Multiservice Switch 20000 is a member of the Multiservice
Switch family of nodes. It operates with the same Product Carrier Release
(PCR) software as Multiservice Switch 7400 series and Multiservice
Switch 15000 nodes. A Multiservice Switch 20000 provides the same
functionality and services as a Multiservice Switch 15000, and offers
significant hardware improvements, most significantly a higher shelf (user)
capacity. The figure Two Multiservice Switch 15000 or Multiservice
Switch 20000 nodes in a NEBS 2000 frame (page 17) shows two switches in
PPT 2912 001 AA

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Introducing Multiservice Switch 15000 and Multiservice Switch 20000 hardware
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential
one frame. The front view of a Multiservice Switch 20000 is very similar to a
Multiservice Switch 15000. The rear of the Multiservice Switch 20000 is
configured in the same manner, but has a different look.
Although a Multiservice Switch 20000 shares much of the Multiservice
Switch 15000 hardware, the shelf assembly of the Multiservice Switch 20000
has been re-designed with a scalable backplane, ship-in-place hardware, and
different plug-ins. Because of the physical improvements that the shelf
assembly provides, a Multiservice Switch 15000 cannot be upgraded to a
Multiservice Switch 20000 by changing plug-in cards or modules. Processor
cards from a Multiservice Switch 15000 or Multiservice Switch 20000 can be
shared, but the Multiservice Switch 20000 is a unique shelf with its own
software identity.
The plug-in modules and fabric cards at the rear of a Multiservice
Switch 20000 are redesigned for improved capacity, performance, or usability.
The modules include:
• the breaker interface modules (BIMs) with 25 A breakers
• the power interface modules (PIMs) with on/off LEDs
• a DS1 or a balanced E1 alarm/BITS module with an add-on balun cable
assembly to make the E1 unbalanced
• the MAC address module
• two fabric cards each with 70 Gbit/s usable shelf capacity (actual capacity
is 112.6 Gbit/s each)
The backplane of the shelf assembly is designed to accommodate fabric
cards of different capacities and is scalable to 160 Gbit/s. The initial 112 Gbit/
s fabric cards continue to load-balance and load-share with 70 Gbit/s of shelf
(user) capacity so that either fabric card can take over the load of its mate and
FP traffic is maintained.
A Multiservice Switch 20000 supports the same function processors (FPs)
that are supported by a Multiservice Switch 15000, and supports these control
processors (CPs), each with a building integrated timing supply (BITS)
interface:
• NTHW06 for a DS1 CP3
• NTHW08 for an E1 CP3
A Multiservice Switch 20000 can re-deploy FPs that were previously loaded
with Product Carrier Release (PCR) software 2.3 or later, and re-deploy CP3s
with PCR 3.1 or later software provided the cards are migrated to the current
PCR.