1. Trang chủ
  2. » Công Nghệ Thông Tin

Tài liệu Product List pdf

48 338 0
Tài liệu đã được kiểm tra trùng lặp

Đang tải... (xem toàn văn)

Tài liệu hạn chế xem trước, để xem đầy đủ mời bạn chọn Tải xuống

THÔNG TIN TÀI LIỆU

Thông tin cơ bản

Tiêu đề Product List Pdf
Trường học ADC Telecommunications, Inc.
Chuyên ngành Network Infrastructure
Thể loại Tài liệu
Năm xuất bản 1996
Định dạng
Số trang 48
Dung lượng 1,26 MB

Các công cụ chuyển đổi và chỉnh sửa cho tài liệu này

Nội dung

Product ListProduct ListingDescription Soneplex Loop Extender Access Modules Central Office HDSL Remote HDSL Standard Simplex power Simplex power and idle code Simplex power and local po

Trang 1

I Product List

Product ListingDescription Soneplex Loop Extender Access Modules

Central Office HDSL Remote HDSL Standard Simplex power Simplex power and idle code Simplex power and local power HDSL Repeater

Repeater Loop Extender (-130V) Repeater Loop Extender Plus (+130V) Quad Loop Extender

SC connectors

FC connectors Quad Loop Extender - Short Range

SC connectors

FC connectors

Common Equipment

Soneplex Loop Extender Chassis - 23"

Soneplex Loop Extender Chassis - 19"

Main Processor Unit Loop Extender Chassis Software Alarm Processor Unit

Heat baffle/fiber management panel - 23"

Heaf baffle/fiber management panel - 19"

Common Equipment Kits

Soneplex Loop Extender Kit - 23"

Includes:

1 – Soneplex Loop Extender Chassis - 23"

1 – Main Processor Unit

1 – Alarm Processor Unit

1 – Heat baffle/fiber management panel - 23"

Soneplex Loop Extender Kit - 19"

Includes:

1 – Sonpelex Loop Extender Chassis - 19"

1 – Main Processor Unit

1 – Alarm Processor Unit

1 – Heat baffle/fiber management panel - 19"

Remote HDSL single position chassis With wire-wrap and RJ connections Remote HDSL two position chassis With wire-wrap and RJ connections Remote HDSL eight position chassis

No AC power With AC power

Name

HLXC HLXR HLXR HLXR HLXR HRX RLX RLX+

QLX QLX QLX QLX

SPX SPX MPU SWR APU BAFF BAFF

FWM FWM FRMQ HWM1 HWM2 HWM4 HWM4

Trang 2

Product ListingDescription Optional Equipment

Soneplex fan and filter assembly LEC fan and fiber management Front access panel

Plenum fiber management panel

Optional Equipment for Quad Loop Extender Chassis

Craft performance monitoring module Line terminating unit

Power supply unit One 110 VAC/-48 Vdc supply Two redundant 110 VAC/-48 Vdc supplies Power supply spare

23" rack mount bracket for four position QLX chassis Battery back-up system (rectifier and 12.7 amp hour batteries)

24 Vdc Equipment for Quad Loop Extender Chassis

Quad Loop Extender-SC connectors Craft performance monitoring module Alarm processor unit

Name

FAN FFM FAP PFM

CPM LTU PSU-1 PSU PSU-S - -

QLX CPM APU

Refer to the Soneplex ® Loop Extender Ordering Information (literature #476A) for complete ordering information and catalog numbers Contact your ADC Sales Representative or call ADC Customer Service at 1-800-366-3891 to receive a copy of the most current ordering information.

Trang 3

II Platform Introduction

Today, network planners face a dilemma Since the future of standards and servicesremains unclear, there is a healthy concern about investing in what may become

“deadend” technology Still, networks must grow and change, both to provide currentrevenue and to accommodate emerging services and markets, while competition andderegulation add to the sense of urgency

The penalty for delay is stagnation On the other hand, choosing the wrong path wastescurrent resources and blocks future growth The Soneplex® Loop Access/TransportPlatform lets you build today, while preserving future options

The Soneplex platform offers a modular architecture which supports copper and fiberoptic transport facilities in point-to-point and point-to-multipoint topologies In thefuture, it will enable you to add a full range of broadband services and cost effectivelymigrate to SONET, but the return on your investment begins immediately

By integrating network interface, access, and management functions, the Soneplexplatform substantially reduces your required inventory The Soneplex platform lets youinstall the facilities which will earn you revenue today, and add new ones as demand –and revenue potential – grows The modular design makes change, such as upgradefrom asynchronous to synchronous interface, easy, often simply a matter of swappingcards

The Soneplex system also improves your return on costly, skilled human resources.Preprovisioning is easy and cost effective, so turnup of services can be handled quickly,inexpensively, and often remotely The same is true of system administration andmaintenance This, coupled with sophisticated self-test and notification capabilities,gives you a critical edge as networks grow larger and more densely packed

Most important, the Soneplex system keeps your options open You can continue to useexisting infrastructure while you plan your future Today’s HDSL or DS1 modules,interfacing to copper, can operate side-by-side with optical DS2 modules interfacingwith fiber An asynchronous DS3 network interface can be upgraded to SONET STS-1with a simple change of plug-in modules As your needs change, the Soneplex platformwill evolve with you Growth and change become part of your strategic plan

As networks are required to do more, cost less to operate, and perform more reliably, theSoneplex system lets you build with confidence The system accommodates a range ofasynchronous and SONET interfaces, DS3 and STS-1 Upgrade from copper to fiber can

be as simple as a change of modules

Two basic Soneplex systems are designed to meet all of your loop access and transport

needs, from the central office to network hubs to large customer sites The Soneplex

Loop Extender System distributes services from DS1 feeds The Soneplex Broadband System lets you distribute services from DS3 or STS-1 high bit-rate interfaces.

The intelligence built into the Soneplex system lets it take an active part in networkmanagement The system provides simple, flexible access to the network for remotetesting, and monitors many aspect of the network measuring user-defined parametersand sending alarms, or even rerouting traffic when error-rate thresholds are exceeded.These capabilities can substantially reduce, or even eliminate, many of today’s costs ofservice initiation or system maintenance

Trang 4

The Soneplex system’s high-density, multifunction design combines the functions of avariety of network elements: multiplexers, DSX bays, office repeaters, fiber optic exten-sion shelves and monitoring devices It simplifies installation and saves valuable space.Each chassis is made up of three primary sections: one for network interface, another forservice distribution, and a third for network management and maintenance.

The network interface section of the Soneplex Loop Extender System accepts up to 28 DS1 inputs per chassis The high-speed network interface section of the Soneplex

Broadband System accepts DS3 inputs and eliminates the need for external M13

multiplexers It also supports STS-1 synchronous electrical input – an inexpensive form

of connection to collocated equipment – performs VT mapping, and has time-slotassignment capability

The service distribution section of the system supports up to 28 modules for delivery ofDS1 hicap service over conditioned or unconditioned copper or fiber facilities High bit-rate digital subscriber line (HDSL) modules perform 2B1Q conversions for transport ofhicaps over non repeater-equipped copper Optical DS2 modules convert electricalsignals to optical, transporting 4 DS1 signals over a DS2 fiber link

The management and maintenance section consists of a main processor unit (MPU) and

an alarm processor unit (APU) The system supports TBOS and TL1 interfaces forremote connection to an operations support system (OSS) It also supports an easy-to-use, menu-driven craft interface, and X.25 and alarm contact closure interfaces

HDSL signal transport allows local exchange carriers to continue to earn revenue fromexisting copper infrastructure Each HDSL module allows one DS1 signal to be trans-ported up to 12,000 feet over copper without the use of line repeaters, bridge taps, orcable pair separation The addition of an HDSL repeater doubles the effective deliverydistance to 24,000 feet

HDSL compensates for gauge changes, and tolerates the presence of near-end crosstalk.RLX modules in the chassis will extend DS1, and power up to 10 span repeaters on asingle unconditioned copper circuit Each 19" shelf supports 20 modules The standardSoneplex shelf supports up to 28 modules serving as many as 28 customer sites

For fiber transport, optical DS2 modules can operate side-by-side with HDSL cards Up

to seven customer sites can be supported by each Soneplex chassis One optical moduleper site provides unprotected 6.3 Mbps service (4 DS1s) Two modules per site provide1+1 protection

The combination of HDSL and optical DS2 modules provide: T1 hicaps, T1 transport ofdigital loop carrier, T1 video using the latest compression techniques, fractional T1, andcell-site connection for cellular telephony transmission

The system’s remote OSS interface and onboard management capabilities make it idealfor unstaffed sites or operations with limited staffing capabilities Remote provisioningand monitoring simplify setup and routing maintenance demands

Realtime and historical performance monitoring, and remote loopback and bit-errortesting greatly reduce the demands on technical support personnel

System Design and

Capabilities

Soneplex System

Application and

Operation

Trang 5

II Platform Introduction

• A variety of plug-in network interfaces give you flexibility today, and a clear

migration path to SONET.

• A range of customer interfaces let you use existing copper infrastructure, and

upgrade easily to fiber.

• The Soneplex system is compatible with current operations support systems, for

ease of conversion.

• Remote operation and support capability reduces downtime and maintenance cost.

• Embedded X.25 interface supports up to three switched, virtual circuits, and

eliminates the need for an external packet assembler/disassembler (PAD).

• High density design saves floor and rack space, and makes Soneplex ideal for hut

or cabinet installations

• Improved cable management, organizing both copper and fiber, saves space and

simplifies management and repair.

• Full-time performance monitoring allows proactive repair, reducing customer

impact and loss of revenue

• Remote monitoring and alarms allow centralized trouble shooting for better use

of personnel and improved response

• Housekeeping alarm transport eliminates the cost of separate fire and tamper

alarm reporting systems.

• Remote DS1 loop back for single-ended testing of each DS1 reduced both failure

and repair cost.

The Soneplex Intelligent DS1 Service Delivery Platform supports your existing structure while positioning you for a competitive future Rather than painful choicesbased on technology, you are freed to make simple, rational decisions based on marketdemand Implement what your customers are willing to pay for, and build new infra-structure as revenues allow

infra-Instead of placing new burdens on personnel, the Soneplex platform lets them offloadtime consuming chores to the system itself Technicians acclimate quickly, usingfamiliar existing support systems, and accessing large areas of the network remotely

As technology and the network grow and change, the Soneplex platform adapts quicklyand easily Today’s rebuild becomes tomorrow’s card swap Migration to fiber, SONET,and new support systems becomes easy and economical The Soneplex platform solvesthe network planning dilemma

Soneplex Platform:

Focus on Function

Soneplex Platform in

Summary

Trang 6

The Soneplex Loop Extender system is a flexible, cost-effective platform providing DS1services in point-to-point or point-to-multipoint applications To meet the short turn-upintervals that exist in today’s competitive market, different DS1 modules can be mixedwithin the chassis to match the transport facilities already in place These modulesinclude the Quad Loop Extender (QLX), the High bit-rate Digital Subscriber LineModule (HLX) and the Repeater Loop Extender Module (RLX).

The Soneplex Loop Extender system accepts a standard electrical DS1 signal on thenetwork side and can be used in a stand-alone configuration or with any multiplexer ornetwork element that generates a standard DS1 signal The standard Soneplex LoopExtender system consists of a 23 inch rack mount chassis housing up to 28 moduleswhich extend up to 28 DS1 circuits over either copper or fiber A main processor unit(MPU) provides the interface from the transmission modules to the operation supportsystem (OSS) An alarm processor unit (APU) provides a critical/major/minor contactclosure appearance to the telemetry alarm system (TAS), as well as housekeeping alarminputs

A 19 inch rack mount version of the Soneplex Loop Extender chassis has been developedwhich supports up to 20 DS1 service modules as well as the MPU and APU

DS1 transport schemes employed by the Soneplex Loop Extender system include:

• High bit-rate digital subscriber line (HDSL): The HLX modules perform a DS1/HDSL

2B1Q signal conversion to transport hicaps up to 12 kft over two unconditioned copperpairs An inline HDSL repeater may be deployed to double the transmission distance up

to 24 kft

• Repeatered DS1s: The RLX modules transport repeatered DS1 signals over copper

facilities

• Quad Loop Extender: The QLX modules perform electrical/optical conversions,

allowing up to four DS1 circuits per card to be transmitted over either a 1+1 protected

or unprotected fiber optic link

Introduction

Description

CSU

H L X C

H L X C

H L X C

5 6 7 Q

L X

Q L X

8

13 14 15 16 17 1819 20 21 22 23 24

R L X

26 27 28M P U

A P U

Q L X

Q L

H L X C

H L X R

H L X R

H L X R

H L X R

TBOS

EIA-232 EIA-422

DS1

(3000' BETWEEN SPAN REPEATERS) OPTICAL BUDGET UP TO 20 MILES

CUSTOMER PREMISES REMOTE WALL MOUNT CHASSIS

UP TO FOUR QLXs PER CHASSIS

CUSTOMER PREMISES REMOTE RACK MOUNT

OR WALL MOUNT CHASSIS

REMOTE ONE OR TWO POSITION

WALL MOUNT CHASSIS

DISTRIBUTION LOOP (12 KFT)

X.25

TOTAL DISTRIBUTION HDSL LOOP (24 KFT)

HRX

Trang 7

III System Introduction

The Soneplex Loop Extender system provides a variety of interfaces for interconnectioninto office alarm systems and operations centers At the heart of this operations featureset is the direct TL1 connection to the X.25 network This connection is accomplishedvia a synchronous output from a EIA-232 port controlled by the MPU This port elimi-nates the need for an intermediate Packet Assembler/Disassembler (PAD)

The rear of the Soneplex Loop Extender chassis has three serial interface ports Port 1supports an EIA-422 telemetry byte oriented serial (TBOS) protocol interface Port 2 is aserial EIA-232 25-pin D subminiature connector that supports either craft interface orTL1 commands Port 3 is also a serial EIA-232 25-pin D subminiature connector thatcan support three logical connections over one X.25 connection These logical connec-tions can be in the form of either permanent virtual circuits (PVCs) or switched virtualcircuits (SVCs) The virtual circuits can be configured for craft interface or TL1commands

The Soneplex Loop Extender system stores all revision level information to allow local

or remote inventory via the craft interface terminal or remotely through dial-up access

or X.25 Software upgrades to all elements of the Soneplex Loop Extender system areperformed through a download procedure, which may be accomplished locally throughthe craft interface or remotely through dial-up access

For external back-up protection, the system can upload and download from the MPU itsspecific configuration database This operation is effected from a PC using a standard filetransfer program with the configuration stored in a disk file The download procedure ofthe database will be similar to the MPU software download

MPU-specific administrative and provisioning information is retained on the D1 HLXCmodule for database and restoral purposes Therefore, if MPU replacement is necessary,

no external data transfer or back-up protection is required

Today's service providers want to be alerted to potential service outages before theproblem manifests itself Through full-time DS1 performance monitoring, the SoneplexLoop Extender system provides unparalleled insight into the actual service level deliv-ered to the customer Extensive maintenance features are provided by the Soneplexcommon equipment and the service plugs themselves Trouble isolation andsectionalization is accomplished through loop backs Front panel indications, along withvisual and audible alarms, provide local notification of critical, major and minor alarms

as well as other maintenance conditions

User access is provided through VT100 emulation, using any personal computer orlaptop computer terminal This capability is available remotely through dial-up access.Protection switching architecture is employed on any service affecting interface carryingmultiple DS1s The high speed interfaces are all protected 1+1, as are the optical lowspeed interfaces

Administration

Maintenance

Trang 8

All provisioning is performed locally or remotely through the craft interface Depending

on the service delivered, a minimum number of options must be set for enabling thecircuit Provisioning information is stored in non-volatile memory, and is maintained inthe MPU even during power down conditions Each module also retains its own provi-sioning information in case the MPU itself needs to be removed and replaced The newMPU is then updated automatically by each module in the Soneplex Loop Extender

A standard TL1 message set is supported through logical channels in the X.25 link.Customer circuits may be enabled, disabled, reprovisioned, looped for trouble isolation

or interrogated for performance information via this link

Provisioning

Trang 9

T1 SPAN LINE

CUSTOMER PREMISES A

1 DS1

HDSL 2B1Q

1 DS1

CUSTOMER PREMISES B HLXR

CUSTOMER PREMISES C QLX

NETWORK INTERFACE

• 1

• Customer A is fed a repeatered DS1 over copper

• Customer B is fed a DS1 using high bit-rate digitalsubscriber line transmission technology

• Customer C is fed up to four DS1s over a protectedfiber link

In a second OSP application, DS1 hicap services arehubbed from a cabinet One or more Soneplex LoopExtender chassis can be mounted in the cabinet forDS1 distribution using fiber or copper facilities

In this outside plant (OSP) application, DLCcabinets are fed with protected or unprotectedoptical DS2s, repeatered DS1s or DS1s usingHDSL transmission technology

Outside Plant Cabinet

CABINET

SPAN LINE

CUSTOMER PREMISES A

1 DS1

1 DS1

CUSTOMER PREMISES C

HLXR

SONEPLEX LOOP EXTENDER CHASSIS

CUSTOMER PREMISES B

CABINET A

SUBSCRIBERS OPTICAL DS2

SONEPLEX LOOP EXTENDER CHASSIS

OUTSIDE PLANT CABINET

• 1

28 DS1s

DLC

CABINET B DLC

T1

QLX

SUBSCRIBERS

CABINET A DLC HLXR

SUBSCRIBERS HDSL

2B1Q NETWORK

INTERFACE

Trang 10

Building Riser The Soneplex Loop Extender system can also be used

in high rise building applications to distribute hicapDS1s to various floors utilizing the physical transportmedia available, either copper or fiber optical risercable The Soneplex Loop Extender chassis is located

in the basement or a closet of the building, feedingone or more customers within the building

HLXR

SONEPLEX LOOP EXTENDER CHASSIS

REPEATERED DS1

The Soneplex Loop tender system is ideal forthin route T1 applicationswhich feed cellular trans-port sites As the personalcommunication system(PCS) market expands, therequirement to establishcell sites and initiateservice quickly is essential

Ex-Most sites will require one

to two T1 lines TheSoneplex Loop Extenderplatform is ideal for thisapplication regardless ofwhether the transportmedium is copper or fiber

OPTICAL DS2

24V POWER SUPPLY

SONEPLEX LOOP EXTENDER CHASSIS

28 DS1s

BTS CABINET A HLXR

BTS CABINET B HLXR

HRX

HLXR

QLX QLX

HDSL 2B1Q NETWORK

INTERFACE

Trang 11

IV Modules – Access

Quad Loop Extender ModuleLow speed optical interface converts four DS1 signals into an optical DS2for delivery over a pair of singlemode fibers A QLX is used at the customerpremises to convert the optical DS2 back to four DS1s 1+1 protection is an option TheQLX provides BER threshold protection switching, far end alarm visibility and far endhousekeeping alarms

HDSL Central Office ModuleThe HLXC supports one DS1 per module and provides conversion fromDS1 electrical format to HDSL format (2B1Q), continuous monitoring onHDSL loops, and -130 Vdc simplex power (+130 Vdc if an HDSL repeater is present) toremote HDSL module (HLXR) The module allows full duplex transmission up to12,000' over two unconditioned copper pairs The HLXC provides far-end alarm visibilityand full performance monitoring It also performs DS0 channel blocking

HDSL Remote ModulesThe remote HDSL module supports one DS1 per module, operates on linepower from the HLXC and specific models provide a -48 Vdc local poweroption It can be optioned to operate as an NID The HLXR provides a 1.544 Mbps DSX-1interface toward the customer (ANSI T1.403-1990) The HLXR will recognize andactivate on in-band loop back codes

HDSL Repeater ModuleThe HDSL repeater module supports one DS1 per module and operates on+130 volt line power from the HLXC The HDSL repeater extends theHDSL technology beyond the Carrier Serving Area to a maximum distance of 24 kft

Repeater Loop Extender ModuleThe RLX supports one DS1 per module and can be optioned as an auto-matic span power repeater (ASPR) or as a DS1 interface to a DSX TheRLX provides full performance monitoring and performs DS0 channel blocking

QLX Description

HLXC

HLXR

HRX

RLX

Trang 12

up to approximately 20 miles The system can be ured for either unprotected or 1+1 protection In theunprotected configuration, two modules are deployed:

config-one at the CO and config-one at the CPE In the protectedconfiguration, four modules are deployed: two at the COand two at the CPE Up to seven protected or unprotectedsystems can fit into the Soneplex Loop Extender chassis

QLX Module

STATUS REMOTE DS1 STATUS

ENABLE

R = FAULT

G = O.K FLASH = LPBK OFF = UNEQPP DS1 ONLINE

G = ONLINE

R = LINE LOCK OFF = OFF LINE

RESET

LMPTST/

APS

OPT APS

FAIL BER LOCKOUT FORCE

1 - 4 DS1s

L X

Q L X

Q L X

Q L X

1300 NM

22 DB LINK BUDGET

PM INFORMATION TO MPU

UNPROTECTED SYSTEM

ADD FOR 1+1 PROTECTED SYSTEM

Each DS1 circuit can be provisioned for either AMI or B8ZS The two line codes can beintermixed on the same module

Two levels of performance based alarms (BER) are software selectable The BER ing range can be selected from 10-4 to 10-10 for major alarm/protection switch; minoralarm notification is selectable from 10-6 to 10-10 The QLX module in conjunction withthe craft/performance monitoring module (CPM) monitors, collects and reports DS1line and path performance to the embedded operations support The main processorunit provides the interface to an operation support system (OSS)

switch-The Short Range QLX module offers identical performance and functionality featureswith a reduced optical budget of 10.5 dB This unit offers an economical solution foroptical DS2 transport for distances up to 5 miles

Other features of the QLX modules include:

• Compatible with the B3, C3 and D3 versions of ADC’s Quad Fiber Loop Convertersand ODS2 modules

• DS1 interface line build out

• Path or line protection switching with the craft/performance monitoring unit

• Alarm reporting of various alarms as major, minor or remote with the AlarmProcessor Unit

• The QLX is transparent to frame formats

• Remote far end alarms visibility

• Extended temperature

• Remote loop backs

• Short Range version (10.5 dB optical budget)

Trang 13

IV Modules – Access

The QLX can operate in either protect or unprotect modes In both modes, all four DS1sare recovered from the optical link and will be delivered to the customer access point

In a protected link, the QLX can be optioned, through software commands, for eitherline or path protection switching Line protection switching refers to group-switchingall four DS1s from the working to the protect modules Path protection switchinginvolves evaluating each DS1 on an individual basis and switching individual DS1sbetween two QLX modules Therefore, one QLX module could deliver from one to fourDS1 signals to the customer, with the remaining signals provided by the second QLXmodule in the protected link

For path protection switching to be active, a craft performance monitoring module(CPM) must be installed in the CPE chassis At the CPE location, the recovered DS1signals are routed to the CPM for evaluation and the best signal of each pair is chosen to

be delivered to the customer

Individual DS1 circuits can be looped back remotely

Initiating a command from the craft interface toloop back a remote DS1 signal sends a proprietaryloop back command over the fiber to the far end,looping back that DS1 to the network and sending anAIS signal to the customer

The QLX system can be used to transport a variety of services up to the DS1 rate,including:

Q L X

SF, ESF, SLC96 and unframed 9/125 µ m singlemode

2 4

1310 nm

22 dB

20 miles (average)

FC, SC -42.5 Vdc to -56.5 Vdc -48 Vdc or 110 VAC

6 watts typical per QLX module -40 o C to 65 o C

Fiber – Unprotected System:

Fiber – Protected System:

Trang 14

Short Range QLX

Specifications

A majority of cellular sites are being constructed with 24 Vdc sources as the primarypower supply The requirement to feed this growing application over a fiber networkdemands a system which could operate with a 24 Vdc power feed Unique QLX, CPM andAPU modules have been developed, which can be deployed in the QLX chassis andpowered by 24 Vdc The system functionality and performance features are identical tothe standard QLX platform

SF, ESF, SLCC 96 and unframed 9/125 µ m singlemode

2 4

1310 nm 10.5 dB

Fiber – Unprotected System:

Fiber – Protected System:

Wavelength:

Optical Budget:

Transmission Distance:

Fiber Connector:

Trang 15

IV Modules – Access

HDSL Loop

UNCONDITIONED LINE 12,000'

392 KBAUD (784 KBPS) USING 2B1Q LINE CODE LOOP 1

LOOP 2

DS1

ANSI T1.403 T1.408

INTERFACE

DS1

An HDSL repeater may be added to the HDSLspan to double the transmission distance to amaximum of 24 kft

The central office HDSL module (HLXC) performs data translation between the bi-polarDS1 signal and the HDSL 2B1Q line code The HLXC monitors, collects and reports DS1and HDSL line and path performance to the main processor unit which in turn providesthe interface to an operation support system (OSS) The HLXC also communicates withthe remote HDSL module (HLXR) via the HDSL embedded operation channel (EOC)which is defined as part of the HDSL frame structure in Bellcore’s FA-NWT-001211Network Operations Framework Generic Requirements for HDSL

The remote HLXR module performs data translation between the customer side bipolarDS1 signal and the facility HDSL 2B1Q line code The HLXR customer side interface isper ANSI T1.403 The DS1 line performance is monitored by the HLXR and reported tothe HLXC via the EOC OSS information from the HLXR can be obtained through thecraft interface on the HLXR front panel or the MPU located at the CO

Four unique versions of the HLXR offer incremental feature enhancements directed atspecific customer requirements All units are packaged for single slot deployment in

400 style chassis and possess a craft interface on the front panel for circuit monitoringand provisioning All systems provide span power capability

• D4 HLXR (Standard)

• D3 HLXR

- Simplex power for CSU or NID

• D2 HLXR

- Simplex power for CSU or NID

- Idle code generator (as specified in ANSI T1.403-1995)

V I-

L1 L2 HDSL

RMT/ HSKP

LOSW BER LOSW BER

CONT SNR

STATUS

HLXR

LOSW BER LPBK

– +

R 2 2

Trang 16

Other features of the HDSL module include:

• Full and fractional DS1 (individual DS0 blocking)

• HLXR integrated NID that responds to in-band framed or unframed loop back codes,DS1 ESF facility data link loop codes and manual loop back control

• Remote alarm indicators

• Automatic line code and frame format operation

• Continuous real time monitoring of Signal-to-Noise-Ratio and Pulse Attenuationparameters on each loop

• Performance monitoring capabilities per ANSI T1.403

• Access to ESF path performance monitoring statistics (non-intrusive monitoring)

• Alarm reporting via dry relay contacts, TBOS, TL1, craft and X.25 interfaces via theMPU interface

• Current and voltage test points for measuring the loop power

• Insensitive to tip/ring and loop swapping

• Channel blocking code utilizing an 8-bit programmable value

• Loopback acknowledgment signature for programmable loopback

• DS1 simplex power capable of powering CSU at 60 milliamps

• Backwards system compatibility with C1 HLXC or B1 HLXR with reduced feature setwhich match the earlier functionality

• Programmable loopback expanded to HLXC recognizes 16-bit codes in DS1 framed orunframed format When framed, the codes are recognized in either frame bit overwrite or frame bit insert mode

Dimensions:

Weight:

HLXR System Compatibility:

Dimensions:

Weight:

1 1.544 Mbps ± 200 bps AMI or B8ZS

SF, ESF, SLC96 and unframed

784 Kbps dual duplex transmission 2B1Q (two binary, one quaternary) Non-loaded copper pairs, repeaterless transmission up to 12 Kft on 22 or 24 AWG or 9 Kft on 26 AWG including bridge taps; mixed gauge cables allowed; loop lengths may differ

up to 3,300' -42.5 Vdc to -56.5 Vdc Loop power, -48 Vdc -130 Vdc for HLXR +130 Vdc for HDSL repeater and HLXR See power table on page 38

-40 o C to 65 o C Soneplex Broadband and Loop Extender Chassis 4.625" H x 6875" W x 9.75" D (11.75 x 1.75 x 24.76 cm) 913 lbs (.415 kg)

400 Style mechanics chassis 5.6" H x 1.4" W x 6.0" D (14.2 x 3.6 x 15.2 cm) 1.2 lbs (.55 kg)

Trang 17

IV Modules - Access

The HDSL repeater will reside between the HLXC andHLXR Two separate HDSL facility segments

will be created; the first between thecentral office and the repeater, and thesecond between the repeater and theremote site

Each of the two HDSL segments in therepeater application will be capable of reach-ing up to a full CSA distance This results in amaximum reach of 24 kft, or 12 kft per segment TheHDSL repeater should be deployed near mid-span in theoutside plant environment using a 239-type apparatus casewith double-wide slots Only one HDSL repeater may be deployedalong an HDSL trasmission path

HRX HDSL REPEATER

CAUTION

USE OF ELECTRICAL SHOCK VOLTAGES UP TO 260 VOLTS MAY BE PRESENT ON TELE- COMMUNICATIONS CIRCUITS.

YELLOW SELFTEST FLASHING GREEN PERFORMING ACTIVATION GREEN

ALL LOOPS ACTIVE RED EQUIPMENT FAILURE

1 GND 2 NC 3 LOOP 1 RING

4LOOP 1 TIP

5LOOP 1 RING6 LOOP 1 TIP 7 NC 8 LOOP 2 RING

9LOOP 2 TIP10 LOOP 2 RING 12 LOOP 2 TIP CUSTOMER

NETWORK NETWORK CUSTOMER

Maximum Power Consumption:

System Compatibility:

Dimensions:

Weight:

Temperature Operating Inside the Case:

Outside the Case:

Storage Relative Humidity:

Operating and Storage:

13.5 +0.5 dBm

135 Ω

Up to 35 dB; HLXC to HRX and HRX to HLXR

Up to +130 Vdc 6.2 Watts; all power dissipated in the unit.

239 mechanics apparatus case 6.67" x 2.63" x 1.4"

1.0 lb.

-40 ° to 149 ° F (-40 ° to 65 ° C); Ambient temperature inside the apparatus case.

-40 ° to 122 ° F (-40 ° to 50 ° C); Ambient temperature outside the apparatus case.

-40 ° to 158 ° F (-40 ° to 70 ° C); No condensation 5% to 95%

Network Interface Central Office

Chassis

Outside Plant Apparatus Case

Remote End Chassis

D1 HLXC

HDSL Repeater

Customer Premises

Trang 18

HDSL Transmission

Facility Requirements

] [ (3 x L26)

9 – LBTAP

The HDSL module provides full duplex transmission over two unconditioned, loaded copper loops This can be done without standard T1 repeaters and withoutremoving bridge taps or other conditioning of the cable, as long as the loops meet theCarrier Serving Area (CSA) guidelines CSA rules describe the length and make-up ofsuch loops:

non-• No load coils are present in the loops

• For 26 AWG cable (used alone or in combination with other gauge cables) themaximum allowable loop length, including bridge taps, is 9 Kft

• If all cable is coarser than 26 AWG cable, the maximum allowable length, includingbridge taps, is 12 Kft

• An HDSL repeater may be added to the HDSL span to double the transmissiondistance to a maximum of 24 Kft

• Any single bridged tap is limited to 2 Kft maximum length and the total length of allbridge taps is limited to 2.5 Kft maximum length

• The total length of multi-gauge cable containing 26-gauge cable must not exceed:

OHMS @ MAXIMUM LOOP LENGTH

750 638 520 367

MAXIMUM LOOP FOR

35 dB LOSS

9.0 kft / 2.75 km 12.3 kft / 3.75 km 16.1 kft / 4.9 km 22.8 kft / 6.95 km

OHMS PER Kft

83.3 51.9 32.4 16.1

LOSS @

196 Khz dB/Kft

3.880 2.841 2.177 1.535

CABLE GAUGE

26/0.4 mm 24/0.51 mm 22/0.61 mm 19/0.91 mm NOTE: Loop limits are for a circuit with 6 dB nominal margin using PIC cable at 68 ° F.

Trang 19

If a span does not met CSA guidelines for HDSL, use the Worksheets in the tables below

to determine whether the span still meets the following design criteria for HDSL:

HDSL Span Design Worksheet for Maximum 196 kHz Cable Loss @ 135

IV Modules – Access

A Total 26 AWG cable length (Kft):

B Calculate total 26 AWG Cable Loss:

C Total 24 AWG cable length (Kft):

D Calculate total 24 AWG cable loss:

E Total 22 AWG cable length (Kft):

F Calculate total 22 AWG cable loss:

G Total 19 AWG cable length (Kft):

H Calculate total 19 AWG cable loss:

I Calculate total cable loss:

J Number of bridge taps:

K Calculate total bridged tap loss:

L Number of cable gauge changes:

M Calculate total cable change loss:

N Calculate total span loss:

IF TOTAL SPAN LOSS IS LESS THAN 35 dB, THE SPAN LOSS IS WITHIN SPECS Verify maximum DC loop resistance.

kFt (A x 3.88) = dB

kFt (C x 2.84) = dB

kFt (E x 2.18) = dB

kFt (G x 1.5) = dB (B+D+F+H) = dB

(J x 3.0) = dB

(L x 1.0) = dB (I + K + M) = dB

HDSL Span Design Worksheet for Maximum DC Loop Resistance

HDSL

Span Design

Worksheets

A Total 26 AWG cable length (Kft):

B Calculate 26 AWG DC loop resistance:

C Total 24 AWG cable length (Kft):

D Calculate 24 AWG DC loop resistance:

E Total 22 AWG cable length (Kft):

F Calculate 22 AWG DC loop resistance:

G Total 19 AWG cable length (Kft):

H Calculate 19 AWG DC loop resistance:

I Cable length from MDF to Equipment Rack (Kft):

J Calculate office loop resistance:

K Cable length: customer interface to HLXR (Kft):

L Calculate customer premises loop resistance:

M Calculate total loop resistance:

IF TOTAL DC LOSS IS LESS THAN 800 , THE SPAN LOSS IS WITHIN SPECS.

Kft (A x 83) = Ω

Kft (C x 52) = Ω

Kft (E x 32) = Ω

Kft (G x 16) = Ω

Kft (I x 32) Ω

Kft (K x 32) Ω

(B+D+F+H+J+L) =

Note: When the HDSL repeater is deployed, each span calculation (HLXC to HRX and

Trang 20

pow-TRANSCEIVER 1

TRANSCEIVER 2

LINE POWER

TRANSCEIVER 1

TRANSCEIVER 2

DC/DC CONVERTER POLARITY INSENSITIVE

T R

T1 R1

T1 R1

T R

LOOP 1

LOOP 2

-130 VDC GROUND

Additionally, the HLXC is required to span power the combination of a mid-span HDSLrepeater and the HLXR unit This feature require the loop power supply be capable ofgenerating +130 Vdc The HLXC utilizes software intelligence to determine when it isacceptable to enable the +130 Vdc potential on the loops The system will always default

to using the -130 Vdc output potential initially If the HDSL repeater is recognized afterthe loops are synchronized, then the loop power can be changed by software to +130 Vdc.The repeater application is the only scenario that requires the use of +130 Vdc

The D1 HLXR can optionally accept a local -48 Vdc supply This configuration would fullysupport fractional rate applications via single loop provisioning Individual DS0 channelscan be blocked, adding to the utility of the T1 support With single loop provisioning, 12

or fewer DS0 channels can be supported over a single pair of wires between the HLXCand the HLXR

Both the HLXC and the HLXR units provide voltage and current test points for ing the loop power parameters The HLXR provides full DS1 splitting and monitor testaccess via jacks mounted directly on the front panel of the module

measur-ADC’s HDSL system is transparent to any DS1 test method that uses maintenancerelated signals carried in the DS1 payload or the facility data link channel in the extendedsuperframe format (ESF) The system has been designed to allow for testing that would

be analogous to those carried out on repeatered T1s over conventional copper basedfacilities

Both the HLXC and HLXR recognize and respond to 16-bit codes received either in aDS1 framed or unframed format Framed codes will be recognized in either frame bitoverwrite or frame bit insert mode A loopback acknowledgement feature has been added

to the programmable loopback scheme This feature is always enabled The ment sequence will uniquely identify the HDSL module as the physical location of theloopback point Loopbacks can also be performed via TL1 command, TBOS or a menuprompt on the User Craft Interface

acknowledg-Both the HLXC and HLXR will run a power-up self-test when power is initially applied tothe card The power-up self-test also verifies loop and DS1 integrity This will verify thatthe card is operational with no internal hardware or software faults While this test isrunning, the front panel LED is yellow When the test is completed, the LED will turngreen if no faults are detected, and red if faults are detected

Trang 21

III Modules – Access

The HDSL transport technology is designed as an alternative to providing DS1 digitalbipolar transmission over repeatered copper pairs HDSL allows for transmission onnon-loaded, unrepeatered copper pairs for up to 12 Kft The simplicity of the HDSLsystem minimizes engineering and service installation time, dramatically reducingcosts

The HDSL system may be used to transport a variety of service up to the DS1 rate.Some of these services include:

Activate/Deactivate By

Craft / TL1 / HLXR Front Panel Switch Craft / TL1 / 16 Bit Code

Craft / TL1 Craft / TL1 / 16 Bit Code Craft TL1

Craft / TL1 / 16 Bit Code / NID Code

Reverse Direction Signal

Network RCV – Network XMT AIS – CPE

Network RCV – Network XMT AIS – CPE

Network RCV – Network XMT AIS – CPE

HDSL Loop Back Implementation

4 3

2

HLXC NETWORK

DS1

XCVR

HDSL FRAMER

HDSL XCVR

HDSL XCVR

HDSL FRAMER

DS1 XCVR HDSL

XCVR

HDSL FRAMER

HDSL FRAMER

HDSL XCVR

Trang 22

The Repeater Loop Extender (RLX) module is used in repeatered orunrepeatered T1 carrier systems operating at a standard T1 signal rate(1.544 Mbps) The module may be optioned with or without span power-ing capability The RLX is equipped with an automatic span powerregulator (ASPR); this option is a 60 mA constant current supply that candeliver up to 130 Vdc to line repeaters or network interface devices(NIDs) Up to 28 RLX modules fit into the Soneplex Loop Extenderchassis.

The RLX+ incorporates +130 Vdc span power The RLX and RLX+ haveintelligent loopback features similar to the HLXC D1 module, respond toHeikemien loopbacks, and are capable of span powering modern intelli-gent repeater modules

The network DSX interface is a bidirectional, industry standard DS1interface (Bellcore TR-NTW-000499) for use with cable lengths up to 655feet The DSX interface monitors the received signal for loss of signal(LOS) and bipolar violations (BPVs), as well as cyclic redundancy check(CRC) errors (extended super frame [ESF] only) The received data is alsomonitored for both in-band and ESF data link loop back codes and forESF performance monitoring (PM) messages

The repeater interface is an industry standard, bidirectional long-haulDS1, bipolar interface This interface can deliver DS1 service over aminimum distance of 3000 feet (using 22 AWG plastic insulated cable[PIC]) This interface may be optioned to provide up to 8 watts of spanpower The repeater interface monitors the received signal for LOS andBPV as well as CRC-6 errors (ESF only) When using ESF frame format,the receive line can be monitored for data link loop

back codes and PM messages

The RLX monitors, collects and reports DS1 performance to the mainprocessor unit, which in turn provides the interface to an operation support system(OSS)

Other features of the RLX module include:

• Full duplex and fractional DS1 (individual DS0 blocking)

• D4, ESF framing, SLC 96 and unframed capability

• Bidirectional monitoring of ESF data link

• Bipolar interface receivers monitored for LOS and BPVs

• Network receive data is monitored for in-band loop back codes (2-in-5, 3-in-5, and dual

16 bit)

• CRC-6 error monitoring on receive data streams

• Selectable channel blocking to 7F or FF hex

• Span power, 60 mA, -130 Vdc or +130 Vdc

V I-

LOS BER

R L X

LOS BER NET

LINE

+

Trang 23

IV Modules – Access

The RLX+ span power option operates at a 60

mA constant current supply that can deliver

up to +130 Vdc (16 watts) to line repeaters orNIDs The RLX+ factory default setting isconfigured to provide -130 Vdc loop power

The system can be reconfigured for +130 Vdc

by modifying a berg pin jumper setting on themodule

The RLX and RLX+ module can supply 8 and 16 watts respectively of power to externalunits, i.e span repeaters or NIDs Certain span requirements must be met in order forsimplex power applications to work and several calculations must be made to insureproper design of the span line These calculations include:

RLX Module Span Powering

ASPR

T R

R T

T R

R T

+ _

Input Power:

Span Power RLX:

SF, ESF, SLC96 and unframed per TR-NWT-000499

0dB to -33dB -42.5 Vdc to -56.5 Vdc

Total Span Resistance = total loop cable resistance + total loop line repeater resistance +

loop resistance of office repeater Required Span Voltage = total span resistance x 60 mA

Trang 24

Based on the results of the two calculations from the table on page 23, the number ofspan repeaters that typically can be powered by the RLX ASPR (based on typical spanresistances and 60 mA constant current source) This table is not intended for detailedspan design.

DC SPAN POTENTIAL 21.72 35.16 48.60 62.04 75.48 88.92 102.36 115.80 129.24 142.68

SPAN RESISTANCE 362 586 810 1034 1258 1482 1706 1930 2154 2378

POSSIBLE NUMBER

OF LINE REPEATERS

1 2 3 4 5 6 7 8 9 10

Powering

Considerations

Ngày đăng: 17/01/2014, 08:20

TỪ KHÓA LIÊN QUAN

TÀI LIỆU CÙNG NGƯỜI DÙNG

TÀI LIỆU LIÊN QUAN

w