Paradyne CPX-1000 User Manual

Jetstream® CPX-1000

Voice Services Platform

Installation and Operation

Release 2.5

Document No. 1000-A2-GN22-00

February 2003

1000-A2-GN22-00

Notice

This publication is protected by federal copyright law. No part of this publication may be copied or distributed, transmitted, transcribed, stored in a retrieval system, or translated into any human or computer language in any form or by any means, electronic, mechanical, magnetic, manual or otherwise, or disclosed to third parties without the express written permission of Paradyne Corporation, 8545 126th Ave. N., Largo, FL 33773.

Paradyne Corporation makes no representation or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose. Further, Paradyne Corporation reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of Paradyne Corporation to notify any person of such revision or changes.

Changes and enhancements to the product and to the information herein will be documented and issued as a new release to this manual.

Warranty, Sales, Service, and Training Information

Contact your local sales representative, service representative, or distributor directly for any help needed. For additional information concerning warranty, sales, service, repair, installation, documentation, training, distributor locations, or Paradyne worldwide office locations, use one of the following methods:



Internet: Visit the Paradyne World Wide Web site at www.paradyne.com. (Be sure to register your warranty at www.paradyne.com/warranty.)



Telephone: Call our automated system to receive current information by fax or to speak with a company representative.

— Within the U.S.A., call 1-800-870-2221

— Outside the U.S.A., call 1-727-530-2340

Document Feedback

We welcome your comments and suggestions about this document. Please mail them to Technical Publications, Paradyne Corporation, 8545 126th Ave. N., Largo, FL 33773, or send e-mail to userdoc@paradyne.com. Include the number and title of this document in your correspondence. Please include your name and phone number if you are willing to provide additional clarification.

Tradem ark s

Jetstream is a registered trademark of Paradyne Corporation. All other products and services mentioned herein are the trademarks, service marks, registered trademarks, or registered service marks of their respective owners.

A February 2003

1000-A2-GN22-00

Important Safety Instructions

1. Read and follow all warning notices and instructions marked on the product or included in the manual.

2. Slots and openings in the cabinet are provided for ventilation. To ensure reliable operation of the product and to protect it from overheating, these slots and openings must not be blocked or covered.

3. Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous high voltage points or other risks. Refer all servicing to qualified service personnel.

4. The power supply cord for countries other than North America is to be a minimum H05 V V-F type, min. 0.75 mm 2-conductor. Do not allow anything to rest on the power cord and do not locate the product where persons will walk on the power cord. When powering the equipment, do not exceed the electrical ratings stated on the product nameplate.

5. This product may only be used in a Restricted Access Location in accordance with articles 110-16, 110-16, 110-17, and 110-18 of the National Electric Code, ANSI/NFPA 70. A Restricted Access Location is a secure area (dedicated equipment rooms, equipment closets, or the like) for equipment where access can only be gained by service personnel or by users who have been instructed about the reasons for the restrictions applied to the location and about any precautions that must be taken. In addition, access into this designated secured area is possible only through the use of a tool or lock and key, or other means of security, and is controlled by the authority responsible for the location.

6. General purpose cables are described for use with this product. Special cables, which may be required by the regulatory inspection authority for the installation site, are the responsibility of the customer. To reduce the risk of fire, use only UL Listed or CSA Certified (or comparable cables which are certified for use in the country of installation) cable(s) that are suitably rated for the application.

7. A rare phenomenon can create a voltage potential between the earth grounds of two or more buildings. If products installed in separate buildings are interconnected, the voltage potential may cause a hazardous condition. Consult a qualified electrical consultant to determine whether or not this phenomenon exists and, if necessary, implement corrective action prior to interconnecting the products.

8. The equipment is intended for installation in a max. 25° C ambient temperature, in an environment that is free of dust and dirt.

9. When installed in the final configuration, the product must comply with the applicable Safety Standards and regulatory requirements of the country in which it is installed. If necessary, consult with the appropriate regulatory agencies and inspection authorities to ensure compliance.

EMI Notices

UNITED STATES – EMI NOTICE:

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

The authority to operate this equipment is conditioned by the requirements that no modifications will be made to the equipment unless the changes or modifications are expressly approved by Paradyne Corporation.

In order to maintain compliance with Part 15 limits, the supplied RJ21X cable must be used. Refer to the installation instructions.

February 2003 B

1000-A2-GN22-00

CANADA – EMI NOTICE:

This Class A digital apparatus meets all requirements of the Canadian interference-causing equipment regulations.

Cet appareil numérique de la classe A respecte toutes les exigences du réglement sur le matérial brouilleur du Canada.

CE Marking

When the product is marked with the CE mark on the equipment label, a supporting Declaration of Conformity may be downloaded from the Paradyne World Wide Web site at www.paradyne.com. Select

CE Declarations of Conformity.

Library → Technical Manuals →

Japan

Class A ITE

This is a Class A product based on the standard of the Voluntary Control Council for interference by Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may arise. When such trouble occurs, the user may be required to take corrective actions.

C February 2003

Preface

Audience ...................................................................................vii

Organization .............................................................................vii

Related Documents................................................................ viii

Conventions............................................................................ viii

Chapter 1 Voice-over-Broadband Networking

Local Access Network Architecture..................................... 1-1

CPX-1000 Voice Services Platform........................................ 1-3

Packet Network Configuration.............................................1-4

Call Origination and Completion.........................................1-6

CPX-1000 Calling Features .................................................... 1-8

CPX-1000 Management Tools and APIs ..............................1-9

Chapter 2 CPX-1000 Voice Services Platform Description

Equipment Operational Features..........................................2-2

Traffic Capacity........................................................................2-2

CPX-1000 Operation ...............................................................2-3

Management Processing .................................................. 2-6

Call Processing ..................................................................2-6

PSTN Interface................................................................... 2-6

Packet Interface .................................................................2-7

Physical Description ...............................................................2-8

February 2003 i

Table of Contents 1000-A2-GN22-00

CPX-1000 Shelf ................................................................2-10

System Alarm Panel .......................................................2-10

Line Modules with T1 ....................................................2-12

Line Modules with STS-1............................................... 2-12

Call Processor Modules..................................................2-13

Management Processor Module ...................................2-17

PSTN Modules.......................................................................2-20

T1 Load Sharing .............................................................. 2-20

Octal T1 Module..............................................................2-21

12-Port T1 ECAC Module ..............................................2-23

STS-1 Module...................................................................2-25

STS-1 ECAC Card ...........................................................2-28

Splitter Assembly for STS-1........................................... 2-30

ATM OC-3 Module .........................................................2-32

Echo Cancellation Module............................................. 2-35

Echo Cancellation and Compression Module (ECAC)2-36

DC Power Supply Fan and Fan Modules.................... 2-37

DC Power Distribution Panel........................................ 2-39

Chapter 3 Installing the CPX-1000

Installation Checklist ..............................................................3-2

Turn-up Checklist ...................................................................3-4

Installation Requirements......................................................3-5

Safety Requirements.........................................................3-5

General Safety Precautions .............................................3-5

Ground the Equipment .............................................. 3-5

Do Not Service Internal Assemblies.........................3-7

Do Not Work Alone ....................................................3-7

Do Not Modify or Substitute Parts/Equipment ....3-7

Aisle Requirements........................................................... 3-7

Environmental Requirements ......................................... 3-7

Power Requirements ........................................................3-8

ii February 2003

1000-A2-GN22-00 Table of Contents

Rack Requirements ...........................................................3-8

Tools and Supplies ...................................................... 3-9

Facility Connections and Cabling............................. 3-9

Unpack and Inspect the CPX-1000 ..................................... 3-10

Inventory CPX Components ...............................................3-11

Attach the Mounting Flanges..............................................3-12

Rack Mount the CPX ............................................................3-13

Mount the Splitter Assembly ..............................................3-16

Connect Plant Battery and Frame Ground........................3-16

Install Modules in CPX ........................................................3-19

Installing Additional Cards...........................................3-22

Verify Hardware Installation............................................... 3-23

Attach OC-3 ATM Cables ....................................................3-24

Attach Ethernet Cables......................................................... 3-25

Attach MP Card to CP Cards ........................................ 3-25

Connect the CPX to the LAN ........................................3-25

Attach CP Redundancy Cable............................................. 3-25

Attach the T-1/DS-1 Cables.................................................3-26

Attaching Cables to Octal T1 Modules ........................3-26

Attaching Cables to 12-Port T1 Modules.....................3-28

Attach the STS-1 Cables .......................................................3-30

Verify Cabling........................................................................3-32

Apply Power..........................................................................3-32

Check Plug-in Module Indicators.......................................3-33

Alarm Panel Indicators ..................................................3-34

Check the Fans.......................................................................3-34

Verify Remote Interface........................................................3-34

Connect JetCraft PC to CPX-1000 .................................3-34

Change CPX Default IP Address..................................3-34

Verify CPX LAN Connection......................................... 3-35

Provision the CPX-1000........................................................ 3-35

February 2003 iii

Table of Contents 1000-A2-GN22-00

Chapter 4 Troubleshooting

General Troubleshooting Guidelines ...................................4-2

System Trouble Shooting .......................................................4-3

Using the JetCraft Alarm Window .......................................4-3

Troubleshooting the CPX Shelf ............................................. 4-3

Alarm Panel Indicators ....................................................4-3

Module Troubleshooting.................................................. 4-6

Power System Troubleshooting ....................................4-12

Loopbacks ........................................................................4-14

Chapter 5 Repair Procedures

Recommended Power Off......................................................5-1

Emergency Power-Off ............................................................5-1

Power Supply/Fan Module Removal.................................. 5-2

Replacing Inoperative Fans ...................................................5-2

Install Power Supply/Fan Module ................................5-3

Alarm Panel .............................................................................5-4

Removing the Alarm Panel .............................................5-4

Installing the Alarm Panel...............................................5-5

Power Distribution Panel.......................................................5-5

Removing Power Distribution Panel .............................5-5

Installing Power Distribution Panel............................... 5-6

Module Removal and Installation ........................................5-7

Removing and Replacing Cards .....................................5-9

Hot Swapping........................................................................ 5-10

Hot Swapping an MP Card ...........................................5-10

Hot Swapping CP and HSC Cards............................... 5-11

Hot Swapping Line Cards ............................................. 5-11

Planned Hot Swap .................................................... 5-12

Unplanned Hot Swap...............................................5-12

Hot Growth............................................................................5-13

iv February 2003

1000-A2-GN22-00 Table of Contents

Appendix A Using the Console

Logging In.........................................................................A-1

Console Commands.........................................................A-4

?.....................................................................................A-5

clocking........................................................................A-5

crv.................................................................................A-6

exit ................................................................................A-6

help...............................................................................A-6

setpassword ................................................................A-6

showadminstate .........................................................A-6

showclock....................................................................A-6

showecac .....................................................................A-7

showport .....................................................................A-7

showportgroups.........................................................A-7

showpps ......................................................................A-7

showpstnpg.................................................................A-7

stats ..............................................................................A-7

status ............................................................................A-7

sub ................................................................................A-8

Admin Console Commands ...........................................A-8

clearstats ......................................................................A-8

fan.................................................................................A-8

portloop .......................................................................A-9

reboot ...........................................................................A-9

restartsub.....................................................................A-9

setactiveport................................................................A-9

setcdv ...........................................................................A-9

setechocancel ..............................................................A-9

setlinelen....................................................................A-10

tap...............................................................................A-10

vpath ..........................................................................A-10

February 2003 v

Table of Contents 1000-A2-GN22-00

Appendix B Pin Assignments and Indicators

System Alarm Connection Requirements .......................... B-7

Appendix C Replacement Parts

Appendix D Specifications

Index

vi February 2003

Preface

Audience This manual is for technicians and engineers who install and put

into service (turn-up) the CPX-1000 Voice Services Platform or who perform routine diagnostic testing, troubleshooting, and repair of the equipment.

Note

Throughout this document, the terms CPX-1000 and CPX refer to the CPX-1000 Voice Services Platform equipment.

Organization The CPX-1000 Voice Service Platform Installation and Operation is

organized as follows:



Chapter 1, Voice-over-Broadband Networking, describes

Voice-over-Broadband (VoBB) local access network architecture and the role of the CPX-1000 Voice Services Platform in implementing voice over DSL, T1, and wireless broadband networks.



Chapter 2, CPX-1000 Voice Services Platform Description,

describes the features, components, and specifications of the CPX-1000.



Chapter 3, Installing the CPX-1000, provides procedures to

unpack, install, power up, and turn up the CPX-1000.



Chapter 4, Trou bl es hoo ti ng , describes CPX-1000 operational

and hardware problem isolation and correction.



Chapter 5, Repair Procedures, describes how to remove and

replace CPX-1000 modules and components.

February 2003 vii

Preface 1000-A2-GN22-00



Appendix A, Using the Console, describes how to use the

console, and lists user and admin console commands.



Appendix B, Pin Assignments and Indicators, describes port

and plug specifications, and indicators on each module.



Appendix C, Replacement Parts, lists CPX-1000 field

replaceable parts.



Appendix D, Specifications, lists requirements for NEBS

and CPX-1000 specifications for physical, environmental, electrical, electronic, and operational parameters.

Conventions This document uses the following symbols to identify important

notes, and hazardous or dangerous tasks.

Tip

Provides useful information to help you install the CPX.

viii February 2003

1000-A2-GN22-00 Preface

Note

The pointing finger highlights important information. Be sure to read this information before continuing.

Warning

Alerts you to an action or inaction that could lead to an injury to yourself or damage to the CPX-1000.

CAUTION CLASS 1 LASER

Alerts you to a laser hazard—never look directly into the source of a laser beam, which may be invisible.

Voice/Data Interruption

Alerts you to an action that, if done incorrectly, will interrupt voice or data traffic.

Electro-Static Caution

Reminds you to take precautions to prevent electrostatic damage to static-sensitive assemblies and circuits.

Danger: Shock Hazard

Alerts you to an electrical hazard that may cause fatal injury.

Caution

Alerts you to a lifting hazard that may cause physical injury.

February 2003 ix

Preface 1000-A2-GN22-00

x February 2003

C H A P T E R

Voice-over-Broadband

Networking

This chapter describes the Paradyne Jetstream Voice-overBroadband (VoBB) product solution, including the following topics:



Local access network architecture (page 1-1)



CPX-1000 Voice Services Platform (page 1-3)



Packet network configuration (page 1-4)



Call origination and completion (page 1-6)

Local Access Network Architecture



CPX-1000 calling features (page 1-8)



CPX management tools and APIs (page 1-9)

The modern packet-based local access network enables Integrated Communication Providers (ICPs) to deliver a combination of voice and data services to their subscribers over the local loop.

Our Voice-over-Broadband (VoBB) local access network alternatives (Figure 1–1) include:



Voice over DSL (VoDSL)—enables the delivery of integrated high-speed voice and data services over a single DSL circuit; that is, over a single copper pair.



Voice over T1 (VoT1)—offers access at greater distances (i.e., hundreds of miles when repeaters are used) and provides guaranteed bandwidth. It also uses existing T1 aggregation resources at the ILEC central office.



Voice over Wireless (VoWLL)—eliminates the need for land line copper loops by using ATM over MMDS or U-NII wireless broadband access networks.

February 2003 1-1

1. Voice-over-Broadband Networking 1000-A2-GN22-00

Regional

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Phone Sys

LAN

Phone Sys

LAN

Subscribers

Figure 1–1. VoBB Local Access Networks

The CPX-1000 Voice Services Platform is a large-scale voice platform that resides in an ICP's Regional Switching Center (RSC). It serves as the gateway between an ICP’s existing Class 5 voice switch and a packet-based local access network (Figure 1–2).

Class 5

IAD

Local

Loop

CPX-1000

Voice

Switch

DS-3/

IAD

Access

MUX

ILEC CO

OC-3

Packet Switch

ICP RSC

Internet

Figure 1–2. VoBB Network Architecture

The CPX-1000 Voice Services Platform architecture provides seamless integration of voice and data networks. These networks comprise standard ATM switches and local access multiplexers available from multiple equipment manufacturers.

PSTN

0249

1-2 February 2003

1000-A2-GN22-00 1. Voice-over-Broadband Networking

The heart of our VoBB solution is the CPX-1000. IADs, supplied by other manufacturers, reside at subscriber premises. Each IAD provides dial tone to standard (POTS) local telephones and data service, using a single transmission link.

The network architecture provided by the CPX-1000 enables ICPs to extend local dial tone services from an existing Class 5 switch over a packet-based access network. From this perspective, as a loop extender, voice-over-broadband is functionally similar to traditional Digital Loop Carrier (DLC) equipment, where the Class 5 switch provides the actual dial tone, as well as Custom Local Area Signaling Services (CLASS) and calling features.

However, unlike traditional DLCs, which supply the physical subscriber line interface at the central office, the packet architecture places that interface at the subscriber premises.

The benefits of this architecture are:



better voice quality, by performing analog-to-digital conversion near the phone

CPX-1000 Voice Services Platform



more efficient use of copper connections between the subscriber premises and the Class 5 switch

The CPX-1000 supports any broadband access network technology, including voice-over-T1, voice-over-DSL, and voice-over-wireless local loop (Figure 1–1 on page 1-2).

The CPX-1000 is a carrier-class, rack-mounted shelf with redundant components.

The CPX-1000 incorporates a scalable architecture within a single shelf, or by using multiple CPX shelves.



A single shelf can support additional subscribers by adding more network modules or using the spare capacity of existing network modules.



Multi-shelf equipment is comprised of more than one CPX when the capacity of a single shelf is exceeded.

Most shelf components are modules comprised of a line card and a transition card. The line card installs in the front of the CPX and the transition card installs in the rear. A passive midplane within the CPX shelf connects the line modules and transition modules.

February 2003 1-3

1. Voice-over-Broadband Networking 1000-A2-GN22-00

Packet Network Configuration

Phone Sys

LAN

Phone Sys

LAN

The CPX-1000 transports voice traffic via an ATM network. When Frame Relay is used, the frames are encapsulated in ATM cells.

In the packet network (Figure 1–3), voice-over-broadband requires a minimum of two Permanent Virtual Circuits (PVCs) across the network for each IAD (in both ATM and Frame Relay networks).



The first PVC transports the voice and management traffic associated with all of the subscriber's telephone lines. The voice PVC is configured as a variable bit rate-real time (VBR-rt) PVC, and has priority over the data PVC.



The second PVC transports the data traffic. The data PVC is typically set up as an unspecified bit rate (UBR) PVC.

Local

IAD

Loop

AT M

Access

MUX

ILEC CO

Voice PVC

Data PVC

CPX-

1000

Class 5

Voice

Switch

PSTN

Phone Sys

LAN

Phone Sys

LAN

Subscribers

Packet Switch

IAD

Frame

Relay

Access

MUX

IAD

ILEC CO

Voice DLCI

Data DLCI

FRF8

IWF

ICP RSC

Figure 1–3. VoBB Network Configuration

Internet

0250

1-4 February 2003

1000-A2-GN22-00 1. Voice-over-Broadband Networking

Voice is more sensitive to network latency than data, so this configuration ensures that voice traffic always has priority over data. However, this configuration also enables voice traffic to consume bandwidth when a call is in progress. Typically, few subscriber's telephone lines are simultaneously in use, so the majority of the bandwidth is usually available for data service.

For example, over a single 768 kbps symmetric DSL connection, an ICP supports up to eight simultaneous telephone calls using 2:1 compression serving a KTS with 32 extensions at a P.01 grade of service and still delivers data service at an average speed of 550 kbps (Figure 1–4).

700

600

Average bandwidth available for data

500

400

300

Bandwidth (K)

200

100

7am

8am

Average bandwidth used by telephony

9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm

0202

Figure 1–4. Bandwidth Usage—768 kbps SDSL Circuit

However, many network operators have Frame Relay-based local access networks interconnected with ATM networks. The CPX can interface with the Frame Relay network through an Interworking Function (IWF) between the Frame Relay and ATM (Figure 1–3). The IWF is an industry-standard function that either the access mux or a Frame Relay/ATM switch can execute.

In a Frame Relay network, each PVC uses an identifying Data Link Connection Identifier (DLCI). ATM PVCs, however, use a Virtual Path Identifier/Virtual Channel Identifier (VPI/VCI). The IWF maps each Frame Relay DLCI to a corresponding ATM VPI/VCI.

This association between the Frame Relay DLCI and ATM VPI/ VCI is made when provisioning PVCs.

February 2003 1-5

1. Voice-over-Broadband Networking 1000-A2-GN22-00

Call Origination and Completion

These steps describe the network interaction that occurs when a subscriber initiates a call (Figure 1–5):

1. A subscriber initiates the call by taking the telephone off-hook.

2. The IAD notifies the CPX through the Common Channel

Signaling (CCS) channel in the voice PVC.

3. The CPX sends an outgoing call request message to the Class 5

switch through the PSTN (GR-303 protocol) Time Management Channel (TMC).

4. The Class 5 switch selects the available time slot in a PSTN

interface group and directs the CPX to connect the IAD port to the specified time-slot on the switch.

5. The host Class 5 switch provides dial tone.

6. The CPX cuts the calling station through to the switch.

7. The subscriber dials the destination number and the Class 5

switch collects DTMF digits.

8. The Class 5 switch routes the call, returns the call progress, and

generates a call data record.

9. The CPX notifies the Class 5 switch when the station hangs up.

Telephone IAD CPX-1000 Class 5 Switch

Figure 1–5. Subscriber Initiates a Call

PSTN

0352

1-6 February 2003

1000-A2-GN22-00 1. Voice-over-Broadband Networking

These steps describe the network interaction that occurs when a subscriber receives a call (Figure 1–6):

1. The Class 5 switch sends an incoming call request message to

the CPX through the PSTN (GR-303) TMC.

2. The Class 5 switch assigns a time slot.

3. The CPX sends a setup message to the IAD, verifying both

bandwidth and port availability.

4. The CPX connects the specified time slot to an IAD port.

5. The IAD initiates ringing.

6. The IAD notifies the switch via the CPX when the first ring is

complete and connects the station through to the host.

7. The Class 5 switch sends a caller ID to the IAD via the CPX.

8. When the station answers, the CPX sends a call connected

message to the Class 5 switch.

9. The Class 5 switch notifies the CPX when the call is cleared.

10. The CPX notifies the switch when the station hangs up.

Telephone IAD CPX-1000 Class 5 Switch

PSTN

0353

Figure 1–6. Subscriber Receives a Call

February 2003 1-7

1. Voice-over-Broadband Networking 1000-A2-GN22-00

CPX-1000 Calling Features

The CPX transparently passes all Class 5 switch standard POTS features to subscribers. These include:



On-hook message delivery, with power ringing (caller ID)



On-hook message delivery, without power ringing — Visual Message Waiting Indication (VMWI)

— other messaging services, such as stock quotes



Off-hook message delivery — caller ID

— call waiting



Flash features — call waiting — 3-way calling — call hold — call transfer



In-band calling features — stutter dial tone for message waiting — code-activated features — call forwarding — call return



Distinctive ringing



Loop battery control — answer supervision

—toll alerting — calling-party control



411 directory assistance



911 emergency assistance



Anonymous call rejection



Automatic call back



Call blocking



Call forward busy



Call forward no answer



Operator barge in



Privacy support—number blocking



Selective call forwarding



Speed calling

1-8 February 2003

1000-A2-GN22-00 1. Voice-over-Broadband Networking

CPX-1000 Management Tools and APIs

We provide several management tools and APIs for use in other network management systems.

JetCraft

We provide a Windows-based voice service management tool with a graphic user interface, called JetCraft. JetCraft manages one CPX at a time. See the JetCraft User’s Guide for more information.

JetVision

We also provide a second, more extensive element management system, called JetVision. JetVision can manage up to 50 CPX shelves at a time. JetVision is used in a standalone configuration to support flow-through management from a higher level Network Management System (NMS) via the JetWay API. See the JetVision User’s Guide for more information.

Jetway

JetWay is an API (Application Program Interface) for JetVision that enables northbound network management systems to integrate functionality into managerial capabilities provided by JetVision.

TL1 Agent

The TL1 Agent is an application that allows TL1 (Transaction Language 1) messages to be sent to the CPX. TL1 is a standard command-line interface protocol designed for element management. The messages supported allow for alarm management and retrieval of CPX configuration information. See the CPX-1000 Voice Services Platform TL 1 Reference for more information.

JetSNMP

We also provide JetSNMP, a CPX native interface that allows SNMP Managers (e.g., HP Open View) to discover and monitor the CPX-1000 equipment. When the CPX-1000 is purchased, we can provide the standard Jetstream SNMP MIB file.

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1. Voice-over-Broadband Networking 1000-A2-GN22-00

1-10 February 2003

C H A P T E R

CPX-1000 Voice Services

Platform Description

This chapter describes the features, components, and overall specifications of the CPX-1000, including the following topics:

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Equipment operational features (page 2-2)

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Capacity (page 2-2)

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CPX-1000 operation (page 2-3)

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Physical description (page 2-8)

The CPX-1000 (Figure 2–1) is a carrier-class, rack-mounted shelf that resides in an Integrated Service Provider’s (ICP's) Regional Service Center (RSC).

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Figure 2–1. CPX-1000 (Front View)

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2. CPX-1000 Voice Services Platform Description 1000-A2-GN22-00

A CPX installation is scalable: first by populating an individual shelf, then by adding additional shelves. Each CPX shelf occupies 12 RU (21 inches high) and is 17 inches deep.

Using optional mounting brackets, the shelf can be installed in 19-inch EIA310, Bell Wide, Bell Narrow, and NEBS2000 racks. Reversible mounting brackets allow installation in 23-inch racks.

Equipment Operational Features

A single CPX-1000 can manage than 18,800 subscriber telephone lines (at 9:1 concentration ratios) on a voice-over-broadband network, including:

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Circuit-to-packet conversion—converts DS0s from the Class 5 switch into cell-based ATM format.

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Routing—routes cells to and from IADs at subscriber locations.

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Call administration—manages call-control signaling to both the Class 5 switch and the IADs.

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Traffic management—monitors the connection over the access network to each end user.

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Concentration management—supports line concentration levels up to 40:1.

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System and Service Administration—acts as the administrative platform for managing voice-over-packet services.

Traffic Capacity

2-2 February 2003

The CPX supports up to 4,000 IADs, and supports two types of T1 modules, which may be used interchangeably: The Octal T1 module provides 8 T1 ports, and up to 6 modules may be placed in the CPX. Echo cancellation or echo cancellation and compression is provided on separate cards. The 12-port T1 ECAC module provides 12 T1 ports, and up to 7 modules may be placed in the CPX. Also, echo cancellation and compression is provided directly onboard, eliminating the need for separate EC or ECAC cards.

The CPX also supports two types of STS-1 cards, which may be used interchangeably. Up to 6 STS-1 cards may be installed in each CPX. The STS-1 module does not provide onboard echo cancellation or compression—you must use separate modules. The STS-1 ECAC module includes onboard echo cancellation and compression, eliminating the need for separate EC or ECAC cards.

1000-A2-GN22-00 2. CPX-1000 Voice Services Platform Description

The capacity of the CPX shelf configured with either T1 modules depends on the shelf configuration and the concentration and redundancy options selected.

A CPX shelf using either STS-1 or 12-port T1 card with ATM OC-3 can support over 2,000 simultaneous calls and 16,000 subscriber lines (8:1 concentration).

Carriers can upgrade the CPX network by adding additional CPX-1000s, all of which can be managed by a single JetVision workstation.

CPX-1000 Operation

Call control, circuit-packet switching, network interfaces, provisioning, and management, are divided into four basic functional blocks:

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Management processing (MP)

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Call Processing (CP)

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PSTN interface (T1 or STS-1)

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Packet interface

Figure 2–2 illustrates this functionality when providing access to

the PSTN via T1, using the 12-port T1 ECAC module.

February 2003 2-3

2. CPX-1000 Voice Services Platform Description 1000-A2-GN22-00

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Figure 2–2. CPX Functional Diagram (T1 Interface)

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1000-A2-GN22-00 2. CPX-1000 Voice Services Platform Description

Figure 2–3 illustrates this same functionality when providing

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2. CPX-1000 Voice Services Platform Description 1000-A2-GN22-00

Management Processing

The Management Processor (MP) module is the administrative CPU for the CPX shelf. It acts as a database for the shelf and as an administrative interface for JetCraft, JetVision, and other management interfaces. The MP supports:

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Configuration, fault, and security management for the CPX

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Configuration management, fault management, and remote software upgrade of the IADs

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High-performance, memory-resident database for persistent configuration

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Real-time performance and error statics

The Embedded Operations Channel (EOC) process on the MP module handles the interface between the CPX shelf and the GR303 interface on the Class 5 switch. The EOC supports the following set of management services to the switch using the T1 model and GR-303 protocol stack:

1. The EOC process receives the management requests over the

EOC connection to the switch.

2. It then interacts with the management process to complete

these requests.

3. The management process notifies the EOC process about

changes in the operating status of the CPX-managed objects.

4. The EOC process sends this information to the Class 5 switch.

Call Processing The Call Processor Engine manages the connections between the

CPX shelf and the IADs at subscriber premises.

The Call Processor Engine resides on the redundant Call Processor (CP) modules that handle call processing, call-control signaling, call setup, and call tear-down.

The Timeslot Management Channel (TMC) process on the CP modules receive all call control signaling from both the Class 5 switch and the CP using the Q.921 (LAPD) data link protocol.

The IAD Signaling and Connectivity function manages communication between the CPX and the IADs. The information passed between the CPX and each IAD includes common channel signaling, alarms and events, and software downloads.

PSTN Interface The PSTN interface connects the CPX to the Class 5 switch via T1

or STS-1 lines. The Port Controller inserts framing and supervision signals into the TDM data stream. The PSTN interface then directs

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