Alcatel 1642 Edge Multiplexer

Transcription

1 TECHNICAL INFORMATION GUIDE Alcatel 1642 Edge Multiplexer STM-1 Optical Multi-Service Node for Customer Premiser Equipment

2 The Alcatel 1642 Edge Multiplexer is a compact STM-1 Optical Multi Service Node that provides world-class next generation SDH functionality and capacity through aggregation of broadband multiprotocol traffic patterns. Designed for metro access and customer premises applications, the Alcatel 1642 Edge Multiplexer offers telecom carriers and service providers the powerful solution to build intelligent optical networks and achieve the optimal balance between new competitive service offerings and traditional revenue-generating services.

3 Table of Contents Introduction Advantages Applications General Description Functional Description SDH Cross-Connect Subsystem Clock Reference Subsystem Control Subsystem Compact ADM Interfaces Traffic Port Subsystem Auxiliary and Overhead Subsystem Power Subsystem Physical Description Technology Characteristics Technology Glossary

4 Introduction The Alcatel 1642 Edge Multiplexer is a Synchronous Add/Drop Multiplexer for SDH-to-the-customer applications. It is part of the OMSN (Optical Multiservice nodes) transmission equipment family, which comply with the Synchronous Digital Hierarchy (SDH) defined in ITU-T Recommendation G.707. Compatible with existing plesiochronous systems as well as with the installed SDH network, the 1642 Edge Multiplexer is a full ADM equipment operating at 155 (STM-1) MBit/s bit rate. It can be configured as a Multi Line Terminal Multiplexer or as an Add/Drop Multiplexer for point-to-point and ring applications. A wide range of different customer tributary signals can be multiplexed or added/dropped into STM-1 aggregates Edge Multiplexer has a symmetrical architecture whereby all traffic ports (PDH and SDH) of the same type have the same functionality and behavior and there is no inherent split between tributaries and aggregates. The traffic ports can be 2Mb/s, 34Mb/s, 45Mb/s, STM-1 optical and Ethernet/FE. A non-blocking matrix function allows full access to 6xSTM-1 equivalent payloads at the Low Order VC level Edge Multiplexer is composed of a very compact chassis and of plug-in units. The chassis can be mounted in 19 racks or used as desktop unit. Whether in telecommunication office environments or at enterprise locations, 1642 Edge Multiplexer has the right powering solution (DC or AC) and optional power redundancy can provide equipment protection. Alarms, performance monitoring, configuration setting and all information about the equipment status are available through the craft interface to a local personal computer and through the Q interface to the Network Management System. Network Management Systems can access the 1642 Edge Multiplexer via the SDH DCC network or directly via LAN. Both the interfaces to the local terminal and to the element manager are based on standard QB3 CMIP protocol stack and management messages. An orderwire channel, optionally available, facilitates link maintenance. Auxiliary channels are transmitted on the overhead bytes, according to ITU-T recommendations. STM-1 optical modules operating at 1300 nm and 1550 nm are available to cover short and long haul applications. TECHNICAL INFORMATION GUIDE ALCATEL 2 >

5 Advantages The main strategic advantages of the OMSN SDH ADM family are: Completeness: A comprehensive range of network elements for all transmission needs, from customer premises applications to metropolitan networks, to long-haul and ultra long-haul terrestrial and trans-oceanic applications. Everything under control of the same management system. Simplicity: The unnumbered possibilities offered by OMSN for network construction are provided by the fewest building blocks. Future-readiness: In addition to traditional transmission applications, OMSN deliver integrated ATM switching and Ethernet switching capabilities. Flexible nodes able to feature different networking functions are becoming vital in order to improve bandwidth utilization in data-dominated networks and to save extra-equipment costs. Backward-compatibility: OMSN guarantees full inter-working with the existing installed base in broad terms: from optical compatibility, to DCC (Data Communications Channels) compatibility, to network management. In other words, existing networks can be upgraded with new equipment without constraints. Management: No matter how the network is built or what networking technologies are used for edge and backbone applications (MPLS, ATM, SDH, WDM ) OMSN delivers one unified management solution. In addition, 1642 Edge Multiplexer brings the following specific benefits: Cost-effectiveness: Network operators can choose from a variety of units with an optimized number of ports, allowing them to buy just what they need. It allows the carrier to reduce the initial CAPEX while keeping the possibility of future upgrades. Full-ADM capabilities at end-customer premises: It can be used to deliver 2Mb/s and Ethernet/Fast Ethernet leased lines as well as higher-end services such as 34Mb/s, 45Mb/s, STM-1 with a versatile and compact chassis ideal for enterprise locations. It empowers the carrier s leased line service offering with the strong and extensive SDH end-to-end path control and monitoring capabilities Flexibility: A Compact ADM-1 card concentrates 2xSTM-1 interfaces, SDH matrix, clock reference and equipment control functions. 4 slots are dedicated to traffic ports, for 2Mb/s services and above. The system can be configured for example as STM-1 Terminal Multiplexer with 8x2Mb/s plus 6xEthernet/Fast Ethernet for office interconnect services or as STM-1 ADM with 112x2Mb/s. Reliability: 1642 Edge Multiplexer offers Sub-Network Connection Protection (SNCP). This allows to insert the 1642 Edge Multiplexer directly into access rings or to connect it to access rings via point-topoint unprotected or protected links. SNCP allows also end-to-end protection of SDH paths. Dual hubbing to two distinct central office ADMs is also possible Edge Multiplexer can also offer 48V power redundancy for equipment protection. Easiness: 1642 Edge Multiplexer has a centralized control architecture that limits the presence of processors and software to the Compact ADM-1 card. Traffic ports have no on-board processors and may be reused from one equipment to another or retrieved from stocks with no worries about software versions Edge Multiplexer also offers local and remote SW download, has the minimum possible set of replaceable items. TECHNICAL INFORMATION GUIDE ALCATEL 3 >

6 Applications The 1642 Edge Multiplexer can be used for transmission over G.652, G.653 and G.654 fibers. The main applications can be identified in the following areas: Delivery of SDH/Ethernet services to customer premises Local and metropolitan rings point to point links with intermediate drop/insert and/or regeneration stations; Metro Core/Backbone Metro Edge Metro Access Metro CPE General Description 1642 Edge Multiplexer is an STM-1 Network Element for transmission and cross-connection of a wide range of PDH and SDH signals. It can operate as a multi Terminal or Add/Drop Multiplexer Edge Multiplexer consists of the following parts: Chassis (four tributary slots) Compact ADM-1 unit (providing 2xSTM-1 optical + central functions) 1 Four slots for any traffic ports that can be of the following types: 8x2Mbit/s unit 28x2Mbit/s unit 1x34Mbit/s unit 1x45Mbit/s unit 1xSTM-1 optical unit 6xE/FE unit Figure Edge Multiplexer Application The Compact ADM unit provides the following functionalities: Up to 2 optical STM-1 modules SDH Matrix function CRU function Equipment controller function Auxiliary and order-wire function The Compact ADM-1 unit is used to terminate the network ring (or line). According to the network topology SNCP (Sub Network Connection Protection) inherent (SNCP/I) is provided at low order VCi levels Edge Multiplexer can realize non-intrusive Path Overhead Monitoring (POM) functions on 100% of Low Order and High Order VCs. Although the typical application for the 1642 Edge Multiplexer is in short reach urban rings, short and long haul optical interfaces are available for STM-1 applications. A centralized matrix implements the cross-connect function. It allows cross-connection between all traffic ports at all VCi (I=12,3) levels. The clock reference function, located in the Compact ADM unit synchronizes the 1642 Edge Multiplexer and provides generation and distribution of a synchronization clock. A wide auxiliary capacity, in accordance with SDH standards, is available for embedded services. An Engineering Order Wire channel, with DTMF signaling, can be accessed by a micro telephone for maintenance facility. TECHNICAL INFORMATION GUIDE ALCATEL 4 >

7 The clock reference function, located in the SDH matrix unit, synchronizes the 1642 Edge Multiplexer and provides generation and distribution of a synchronization clock. The clock can be locked to an external 2Mb/s source, to any STM-n or 2Mbit/s traffic ports or to the internal oscillator. The SSM (Synchronization Status Message) quality and priority algorithms are supported. The control subsystem is also placed on the compact ADM unit. The Equipment Controller function provides configuration, alarm status and performance monitoring data. A software download facility (Local and Remote) is available in order to update the complete software of the control subsystem. The system can be managed either by a CMISE Craft Terminal running on a Personal Computer attached to the F interface or by the Alcatel Network Management System through the Q interface. In case 1642 Edge Multiplexers are divided into several sub-networks by other non-alcatel equipments, an additional 2Mb/s interface on 8X2M Retiming Unit is available for DCC or EOW transparent transmission. DCC or EOW information can be encapsulated in a 2Mb/s data flow in the unit and be transmitted in the network. At last it will be terminated in another 1642 Edge Multiplexer. The system may be powered directly by station battery feed (-48V) or through an internal AC/DC converter. 1 Different optical modules can be mixed in the same unit. Each interface is managed independently. TECHNICAL INFORMATION GUIDE ALCATEL 5 >

8 Functional Description Multi Interface Multi Interface Multi Interface Multi Interface CARD 1 CARD 1 CARD 1 CARD 1 POWER SUPPLY FACEPLATE BACKPLANE F A N MAIN BORAD Qecc ADD/DROP MICRO BUS EC&SC ALL IN ONE PROCESSOR FROM/TO 4 CARD AND 2 OTM OH OH ADD/ DROP E1 BYTE ORDERWIRE TELCOM BUS System Clock SEC TELCOM BUS VC MATRIX 6 External Timing Sources Internal Oscillator TELCOM BUS TELCOM BUS OTM-1 TELCOM BUS TELCOM BUS OTM-1 P O W E R I N T E R F A C E F Q3 Rmt Alarms Houskeeping RS232 telphone External 2Mbps interface STM-1 Interface STM-1 Interface Figure Edge Multiplexer block diagram The equipment consists of the following subsystems: Compact ADM subsystem composed of: SDH VCi cross-connect matrix Clock Reference Equipment Control 2xSTM-1 interfaces Traffic port subsystem Auxiliary and overhead subsystem Power subsystem TECHNICAL INFORMATION GUIDE ALCATEL 6 >

9 SDH Cross-Connect Subsystem The 1642 Edge Multiplexer SDH cross-connect is built upon a non-blocking matrix that can interconnect VC3s and VC12s between any SDH and PDH ports accessing the system. Several types of connections may be established, such as: unidirectional point-to-point bi-directional point-to-point unidirectional point-to-multipoint SNCP Drop & Continue The capacity of the matrix is up to 6x6 STM-1 equivalent ports at the Low Order VC level (378 X 378 VC12s). STM-1 ports 34Mb/s 45Mb/s ports 2Mb/s ports Table 1. STM-1 ports 34Mb/s 45Mb/s ports 2Mb/s ports TU-3 TU-12 VC-3 VC-12 TU-3 Yes - Yes - TU-12 - Yes - Yes VC-3 Yes VC-12 - Yes - - Low Order Connectivity 1642 Edge Multiplexer The SDH VC matrix implements single-ended SNCP/I (inherent) protections. The protection mode may be revertive or non-revertive. Clock reference The synchronization subsystem provides the timing reference required by all components in the network element and represents the SDH Equipment Clock (SEC). The subsystem performs the functionality identified by the ITU-T recommendation G.783 as SDH Equipment Timing Source (SETS). The SETS function is realized by the SDH Matrix unit. A functional view of the SETS function in 1642 Edge Multiplexer is given in Figure 3 STM-n / 2Mb/s 2MHz / 2Mb/s SETG OSC Figure 3. Selector A Selector B OSC Squelch SETG Squelch Select C Synchronous Equipment Timing Generator Internal Oscillator function 1642 Edge Multiplexer SETS function The SETS accepts synchronization inputs from a number of sources: STM-n lines 2Mb/s traffic ports 2Mb/s external input internal oscillator Automatic selection of one of such sources is achieved by selector B using quality (SSM / Synchronization Status Message algorithm) or priority criteria. Also manual selection is possible. The SETS function produces two outputs. The NE clock reference is used as internal timing source and to time the outgoing SDH STM-n signals. One external 2Mb/s output is generated as a possible source for external devices. Up to 4 candidate references may be selected among all STM-n and 2Mb/s traffic ports in the system. 2Mb/s external input and output are available. When configured as 2Mb/s, the external I/Os can carry the SSM timing marker information. The SETG function has three modes of operation: locked, holdover and free-running. In holdover mode, the SETG holds the frequency of the last valid reference with a maximum drift of 0.37ppm per day. The accuracy of the local oscillator is ±4.6 ppm. 2MHz / 2Mb/s NE CLOCK REFERENCE TECHNICAL INFORMATION GUIDE ALCATEL 7 >

10 Control subsystem The control subsystem realizes the Synchronous Equipment Management Function (SEMF) defined by ITU-T Recommendation G.783. It communicates with external management systems through a standard QB3 CMIP interface. The management information model is compliant to the ITU-T G.774 series of recommendations. Communication with the local craft terminal is also based on the same interface. The control subsystem is responsible for applying the configuration requested by the element manager or craft terminal and to report the status of the equipment as well as alarm and performance information. It is also responsible to drive automatic protection switching Edge Multiplexer has a centralized control architecture, built upon a two-level model: Equipment Controller (EC) for DCC networking, CT/OS interface and data-base management Shelf Controller (SC) for provisioning, alarm detection, performance monitoring. The Shelf Controller processor implements the SDH functions in the shelf, for data collection (alarms, performance monitoring) and configuration provisioning purposes. The Message Communication Function (MCF) implemented by the Equipment Controller can manage up to 4 DCC channels (2 DCC channels on the middle row slots and 2 on Main control board). Selection of the STM-n ports and of the DCCm or DDCr channel is via Local Craft Terminal. Mass storage for the configuration database and SW loaded is provided by a replaceable PCMCIA Flash Card located in the Compact ADM unit. Compact ADM interfaces The Compact ADM unit provides direct access to 2 STM-1 interfaces on the unit front panel. This allows the realization of an unprotected ADM/Terminal Multiplexer configuration with a single board (excluding tributaries). The 2 STM-1 interfaces globally available in such a case may be used in any combination of unprotected (i.e. independent) and protected configurations (SNCP). Although physically located on the same unit that implements central functions (control, matrix,...) the Compact ADM STM-1 interfaces are totally equivalent to any other STM-1 interface available in the shelf. TECHNICAL INFORMATION GUIDE ALCATEL 8 >

11 Traffic Port Subsystem SDH and PDH traffic ports are available through the following units: 8x2Mbit/s Retiming unit (Coaxial Interface) 8x2Mbit/s unit (2mm Interface) 28x2Mbit/s unit (2mm Interface) 1x34Mbit/s unit 1x45Mbit/s unit 1xSTM-1 optical unit 6xE/FE unit 8x2Mbit/s Retiming unit (Coaxial Interface) The unit provides the physical interface for the asynchronous mapping of G.703 2Mb/s signals into SDH VC12s. Each unit supports 8 interfaces on the front panel. The unit implements the 2Mb/s retiming function. This allows applying the internal clock reference to outgoing 2Mb/s frames. Retiming can be enabled/disabled at the 2Mb/s port level. Another 2Mb/s coaxial interface is provided for DCC/EOW channel transparent transmission Edge Multiplexer can house up to 4 8x2Mb/s units in the shelf. 8x2Mbit/s unit (2mm Interface) The unit provides the physical interface for the asynchronous mapping of G.703 2Mb/s signals into SDH VC12s. Each unit supports 8 interfaces on the front panel. There are different units for 75Ω and 120Ω applications Edge Multiplexer can house up to 4 8x2Mb/s units in the shelf. 1x34Mbit/s unit (Coaxial Interface) The unit provides the physical interface for the asynchronous mapping of G Mb/s signals into SDH VC3s. Each unit supports 1 interface (75Ω) on the front panel Edge Multiplexer can house up to 4 1x34M units. 1x45Mbit/s unit (Coaxial Interface) The unit provides the physical interface for the asynchronous mapping of G Mb/s signals into SDH VC3s. Each unit supports 1 interface (75Ω) on the front panel Edge Multiplexer can house up to 4 1x45M units. 1xSTM1 Optical Unit The 1xSTM-1 optical unit provides one optical STM-1 interface on the front panel. Several short and long haul types are available Edge Multiplexer can house up to 4 1xSTM-1 units. The optical STM-1 interfaces can participate in any combinations of SNCP schemes that can flexibly be established by craft terminal or management system. 6xE/FE Unit The 6xE/FE unit provides 6 E/FE interfaces (on front panel). The 6 interfaces can be mapped together into 1-5 VC12 or 1-3 VC3 for point-to-point applications. The VCs are virtually concatenated Edge Multiplexer can house up to 4 6xE/FE units in the shelf. 28x2Mbit/s unit (2mm Interface) The unit provides the physical interface for the asynchronous mapping of G.703 2Mb/s signals into SDH VC12s. Each unit supports 28 interfaces on the front panel. There are different units for 75Ω and 120Ω applications Edge Multiplexer can house up to 4 28x2Mb/s units in the shelf. TECHNICAL INFORMATION GUIDE ALCATEL 9 >

12 Auxiliary and Overhead Subsystem The SDH standard offers a wide range of service channels in the Section Overhead (SOH) and Path Overhead (POH) bytes of the synchronous frame. These bytes are used for alignment word, parity check, network management operations, performance monitoring; some data and order wire channels are available to the user. Overhead bytes managed by the 1642 Edge Multiplexer are listed in Table 2, 3, 4, 5 RSOH bytes A1-A2 J0 B1 E1 F1 D1-D3 Table 2. MSOH bytes B2 D4-D12 S1 M1 E2 Description Framing bytes Section Trace RS Parity check RS Engineering OrderWire (EOW) 64kb/s user data channel RS DCC channels Supported Regenerator Section Overhead bytes Description MS Parity check MS DCC channels Synchronization Status Message (SSM) MS Remote Error Indication (REI) 64kb/s user data channels POH bytes V5 J2 Table 5. Supported VC12 Path Overhead bytes Table6 shows the SOH bytes available for local access (shadowed cells). Bytes reserved by standards to future or national use are marked with an x Edge Multiplexer provides the following auxiliary terminations: up to 12 x RS-232 (64kb/s) Note: only support point-to point application Table 6. Description Path Parity check, REI, RDI, Signal label Path Trace A1 A1 A1 A2 A2 A2 J0 x x 2 B1 x x E1 x x F1 x x RS-OH 3 D1 x x D2 x x D3 x x 4 AU-pointers 5 B2 B2 B2 x x x x 6 D4 x x D5 x x D6 x x 7 D7 x x D8 x x D9 x x MS-OH 8 D10 x x D11 x x D12 x x 9 S1 x x x x M1 E2 x x SOH bytes available for local access Table 3. Supported Multiplex Section Overhead bytes POH bytes J1 B3 C2 G1 F2 H4 Description Path Trace Path Parity check Signal label Path status indicator (REI, RDI) POH DCC channel Multiframe position indicator Table 4. Supported VC4/VC3 Path Overhead bytes TECHNICAL INFORMATION GUIDE ALCATEL 10 >

13 Power subsystem The transmission chassis can be powered either directly by a 48V DC station battery or by AC 220V. Optionally, a special fan board with 48V access and 48V/220V power board can be combined to provide Power Redundancy. TECHNICAL INFORMATION GUIDE ALCATEL 11 >

14 Physical Description The mechanical design of the 1642 Edge Multiplexer is based on a 19 ETSI compatible shelf. The mechanical dimensions of the shelf are the following: 443 mm Wide x 88 mm High x 295 Deep The mechanical design provides EMI/EMC performances, in compliance with ETSI standard Telecommunication Center. Figure Edge Multiplexer physical view (example configuration with 4xSTM1 + 8x2Mb/s + 6xE/FE) Figure 4 and figure 5 show the shelf layout in detail. To the left is the slot for the FAN unit (fan or fan with 48V access optional) To the right is the slot for the -48V or 220V power interface unit The top 2 rows provide 4 slots for traffic ports. These slots can be equipped with any of these units: 8x2Mbit/s Retiming unit (75Ω) 8x2Mbit/s unit (75Ωor 120Ω) 28x2Mbit/s unit (75Ωor 120Ω) 1x34Mbit/s unit 1x45Mbit/s unit 1xSTM-1 optical unit 6xE/FE unit The bottom row provides 1 slot for the Compact ADM-1 unit. The maximum quantity of each interface per shelf is: 112x2Mbit/s interfaces 4x34Mbit/s interfaces 4x45Mbit/s interfaces 6xSTM-1 optical interfaces 24xE/FE interfaces E/FE INTERFACE ON 6XE/FE UNIT QB3 INTERFACE 2Mb/s INTERFACE FOR DCC/EOW TRANSPARENCY 2mm HM E1 INTERFACE ON 28E1 UNIT E2, F1 64Kb/s DATA INTERFACE STM1OPTICAL INTERFACE ON STM1 UNIT -48V/220V CONNECTOR FAN WITH -48V ACCESS FOR POWER REDUNDANCY E1COAXIAL INTERFACE ON 8XE1 RETIMING UNIT F INTERFACE FROM LEFT TO RIGHT: OW, E2A, F1A, E2B, F1B, DBG_L (DEBUGGING), SO, SI (HOUSE KEEPING) 2Mb/s EXTERNAL CLOCK ALARM /RUNNING STATUS LED POWER SWITCH STM1OPTICAL INTERFACE ON COMPACT ADM-1 UNIT BECKET Figure Edge Multiplexer Mechanical Shelf Layout TECHNICAL INFORMATION GUIDE ALCATEL 12 >

15 Technology Characteristics Optical interface requirements System specification Type of fiber Wavelength Span length Application types Single mode, according to ITU-T G.652, G.653 and G nm, 1550nm Depending on fiber type and optical power budget reported in table7 TM and ADM in protected and unprotected linear links and rings STM-1 Optical interface type Optical connectors S-1.1, L-1.1, L-1.2 SC-PC Applied standards ITU-T G.703 for electrical interfaces ITU-T G.707 for SDH frame and multiplexing structure ITU-T G.957/958 for optical interfaces ITU-T G.821/G826 for transmission quality ITU-T G.813 for synchronization ITU-T G.783 for SDH equipment specification ITU-T G.841 for network protection architectures ITU-T G784/G774 for system management functions Interface requirements Electrical interfaces Optical interfaces Electrical interfaces general requirements Electrical interfaces impedance 2Mbit/s, 34Mbit/s, 45Mbit/s STM-1 ITU-T G.702/703 2Mbit/s 120Ohm Balance or 75 Ohm Unbalanced 34M, 45M 75 Ohm TECHNICAL INFORMATION GUIDE ALCATEL 13 >

16 Application code S-1.1 L-1.1 L-1.2 Operating wavelength range nm TRANSMITTER REFERENCE POINT S Source type MLM MLM SLM Spectral characteristics - maximum RMS width nm maximum -20dB width nm 1 - minimum side mode suppression ratio db 30 Mean launch power - maximum dbm minimum dbm Minimum extinction ratio db OPTICAL PATH BETWEEN S AND R Attenuation range db Maximum dispersion ps/nm Minimum optical return loss of cable plant at S including any connectors db NA NA 20 Maximum discrete reflectance NA NA -25 between S and R RECEIVER AT REFERENCE POINT R Type of detector In Ga As PIN In Ga As PIN In Ga As APD Minimum sensitivity (BER 10-10) dbm Minimum overload dbm Maximum optical path penalty db Maximum reflectance of receiver measured at R db NA NA -25 Table 7. STM-1 Optical interfaces TECHNICAL INFORMATION GUIDE ALCATEL 14 >

17 Add-drop and Cross-connect features Cross-Connection capacity Cross connect functionality Protection Network protection 6x6 STM-1 equivalent ports at VC12 and VC3 levels Aggregate to tributary Aggregate to aggregate Tributary to tributary Drop&Continue Loopback Broadcast SNCP/I Equipment Protection -48V power redundancy Data communication Network management D4-D12 or D1-D3 or F2 (max. 4 Channel per system) External alarms Housekeeping System alarms 3 inputs + 3outputs One LEDs on each traffic card (ALARM in current, ALARM in history, no ALARM) 8 LEDs in Main Control Board (RUN, POW, OTMA, OTMB, OW, CM, COMMON ALARM, SEVERITY ALARM) 3 LEDs in Faceplate (PWR, SALM, N-SALM) Operation interface Operation processes Station alarms NM access Information model Craft interface Engineering OW OW interface Urgent, non-urgent, alarm receiving attention, according to S9 specifications G.773 QB3/QB2 10 base 2 and 10 base T According to ITU-T (G.774) and ETSI specifications RS-232 PC compatible SUB-D 9 pins at 38kbps E1 access, DTMF in band signaling 64Kb/s G.703 co-directional Remote inventory Software download Performance monitoring Configuration provisioning and At card and sub-unit level Yes, without traffic interruption locally as well as remotely According to G.784, G.826 and G.821 Equipment, ports, add-drop, crossconnect, synchronization, protection, MCF, SEMF, OH connection Security Password, categories, back-up for programs and data Non volatile databases Yes Data channel Power specifications Software E2, F1 (max 12 x RS-232) in point-to programmable OH point application Battery 48 V DC/220V AC according to bytes DE/EE 2001 ETS Maximum dissipation power 40W per 1642 Edge Multiplexer subrack with 2xSTM-1, and 112x2Mbit/s interfaces TECHNICAL INFORMATION GUIDE ALCATEL 15 >

18 Mechanical specifications Equipment practice Sub-rack size Board size ETSI ETS/E3, S9 443W x 295D x 88H mm Traffic Board:230D x 165W mm MCB:230D x 349W mm Cooling Fan Electrical connectors IEC (coax. 1.0/2.3) Head Male (2mm) Access Mode Front access, rear access Environmental specifications Operating condition ETS , class 3.2 Storage condition ETS , class 1.2 Transportation condition EMI/EMC condition ETS , class 2.2 ETS , Telecommunication centers Hot replacement For traffic ports For STM-1 opt. No disturbance on other channels No disturbance on traffic Transmission delay For each type of cross-connection 125 s maximum for any traffic pathway Synchronization Equipment source options Clock inputs Clock outputs Synchronism selection timing Free run Accuracy. +/- 4.6ppm Holdover drift 0.37 ppm per day maximum 1 x 2048Kb/s G Ohm STM-N and 2Mbit/s interfaces 1 x 2048Kb/s G Ohm Priority and SSM algorithm TECHNICAL INFORMATION GUIDE ALCATEL 16 >

19 Technology Glossary ABN ADM AIS APS ATM ATTD AU AUX BA CRU DBR DTMF EC ECT EMI/EMC EOW EPROM EPS ETSI DXC IND ITU-T JE LED LOS MCF MSOH MSP ABNormal condition Add Drop Multiplexer Alarm Indication Signal Automatic Protection Switching Asynchronous Transfer Mode ATTendeD Administrative Unit AUXiliary Booster Amplifier Clock Reference Unit Deterministic Bit Rate Dual Tone Multi Frequency Equipment Controller Equipment Craft Terminal ElectroMagnetic Interference/ElectroMagnetic Compatibility Engineering Order Wire Electrically Programmable Read Only Memory Equipment Protection Switching European Telecommunication Standard Institute Digital cross Connect INDicative International Telecommunication Union Joint Engineering Light Emission Diode Loss Of Signal Message Communication Function Multiplex Section OverHead Multiplex Section Protection MS-SPRING Multiplex Section Shared Protection RING NE NURG Network Element Not URGent OFA OH OOF OS PDH POH ppm RSOH SBR SEMF SDH SNC-P SOH SSM STM TMN TSA TSI UBR URG VC VC-x VP Optical Fibre Amplifier OverHead Out Of Frame Operation System Plesiochronous Digital Hierarchy Path OverHead Parts per million Regeneration Section OverHead Statistical Bit Rate Synchronous Equipment Management Function Synchronous Digital Hierarchy Sub Network Connection Protection Section OverHead Synchronisation Status Message Synchronous Transport Module Telecommunication Management Network Time Slot Assignment Time Slot Interchange Unspecified Bit Rate URGent Virtual Channel Virtual Container x Virtual Path TECHNICAL INFORMATION GUIDE ALCATEL 17 >

20 Alcatel and the Alcatel logo are registered trademarks of Alcatel. All other trademarks are the property of their respective owners. Alcatel assumes no responsibility for the accuracy of the information presented, which is subject to change without notice. 12/2002 Alcatel. All rights reserved. 3AL AAAA Ed. 01