Supports T1/E1 and T3/E3/STS-1 (EC-1) Interfaces. NEBS-Level 3 Compliant. Remote Testing from a Centralized Location. Testing and Management

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2 Supports and /STS-1 (EC-1) Interfaces NEBS-Level 3 Compliant Remote ing from a Centralized Location The Access System () family of test and monitoring products enables network service providers to efficiently isolate and correct network problems without dispatching personnel to remote locations. For wireless and wireline service providers operating in the access network, the NEBS-Level 3 compliant platform offers a true carrier-class solution. In today s network environment where equipment is often located in leased, colocation facilities or carrier neutral locations, costly demands are placed on service providers to hire qualified technicians for turning-up new circuits and for troubleshooting. Both of these impact revenue streams and service commitments particularly when service quality is being measured in minutes, if not seconds. M13 IP Access Channel Bank ATM Voice Internet ATM Backbone PSTN COLOCATION or POP OSS RTM Circuit Database KEY Facility Facing Interfaces Equipment Facing Interfaces NOC By providing non-intrusive monitoring, drop and insert testing, termination testing and monitored loopback functionality, products enable service providers to perform circuit isolation and testing from a centralized location the moment that a problem is detected. Circuits can be redirected to diagnostic equipment connected to the, and the network operations center can perform any test instantly without having to dispatch a technician. This avoids a costly truck roll, accelerates service restoration and ensures service commitments are maintained. ing and Management The provides all the test access functionality of a Digital Cross-connect System (DCS) at a fraction of the cost and space, and is optimized for applications where grooming is not required. The Access System integrates with virtually all existing central office test heads and their operational support systems by emulating common network elements that have been widely deployed. Each system is capable of providing control through a VT-100 craftsperson interface, or by accepting industry standard TL-1 commands from a user or a testing system. Combining the functionality with Remote Manager (RTM) software can further enhance the solution. RTM is an open test solution that utilizes a Java based, graphical user interface to control the products. It also provides interfaces to leading test heads and other network elements that have test access facilities, including most DCS platforms. Facility - NB140 1,536Mps FAD Equipment FAD Remote Head 1,536Mps

3 As networks grow and become more distributed, the difficulty of wide area circuit testing increases significantly. Maintaining expanding networks with traditional mobile field service technicians is both time consuming and expensive. The Remote Manager (RTM) distributed testing solution allows centrally located technicians to perform comprehensive transmission and service analysis at unmanned remote locations. One or more NOC workstations can control remote test equipment dispersed throughout the network. Communication between the NOC and remote sites is achieved over a choice of wide-area connections: dial-up, dedicated, X.25, or TCP/IP. The RTM server simplifies the use for the technician by handling all of these connections. The RTM server provides multi-user access to remote test equipment from any UNIX or PC workstation. Circuit test or monitor access is automated using Eastern s Systems. Multiple test set front panels can be displayed at a single workstation to perform end-to-end testing. Additionally, the RTMs Virtual Distributed Display (VDD) feature enables a single test set to be managed concurrently from multiple workstations, improving test coordination. RTM can also be hosted with other network management tools to consolidate network control activities. Centralized ing Expertise The RTM centralizes network expertise to optimize resources and reduce circuit downtime. It provides set-up, control activities and direct access to test results for analysis and report generation. Macros improve the consistency of test procedures and techniques throughout the entire network for speedy isolation and solution of problems. Technicians can access multiple test sets simultaneously at their workstations for complete control of an end-to-end test. Mobile technicians can use a single dial-in connection to the RTM server to gain access to any test resource on the network. True Client/Server Management Solution RTM is a client/server test management solution available with all products. It provides powerful, centralized and distributed test capabilities which optimize existing test resources to reduce travel time and expenses for network technicians. The RTM client is supported on Sun Solaris, OS/2, and Windows platforms. It provides a Java-based Graphical User Interface, which is integrated as desktop icons on Operation Centers (NOC) management consoles. The server requires a Unix or Windows NT/2000 Pro platform. The client/server architecture provides shared access to RTM applications and resources, including all switches, test sets, and the circuit/connection databases from one or more client workstations.

4 System Description The product line consists of five equipment chassis and a complement of hot swappable modules. Interchangeable throughout the product line, these modules supply the carrier with protocol agnostic test solutions for and /STS-1 (EC-1) making the interoperable with TDM, ATM, and IP networks. The products not only provide network trouble isolation but also optimize network reliability. In the unlikely event of a fault condition within the, there is no interruption in service. functions as a passive device, enabling services to continue through the platform, insuring that no service outage would be caused by a component failure. The system provides BNC connectors and tie-down bars for all /STS-1 (EC-1) connections. The system utilizes wire wrap for connections. These connections are protected by a plexi-glass cover. Expansion Switch The Expansion Switch allows three T3 systems to share common test equipment, further reducing cost and expanding the system capacity to 72 /STS-1 (EC-1) interfaces. T A S F A M I L Y O F P R O D U C T S Narrowband for Applications NB140 supports up to 140 circuits using up to 5 circuit modules in just 5 Rack Units (RU) of space. Narrowband/Broadband Combo for, /STS-1 (EC-1) Applications NB56-BB12 combines the functionality of the Narrowband and Broadband models in a single compact unit. Supports up to 56 and 12 /STS-1 (EC-1) circuits Broadband for /STS-1 (EC-1) Applications BB12 supports 12 /STS-1 (EC-1) circuits. supports 24 /STS-1 (EC-1) circuits. The Broadband system can be expanded by connecting multiple chassis using an Expansion Switch, allowing up to 72 or STS-1 (EC-1) circuits access to a single test head. Expansion Switch Shelf B Shelf C 12 Broadband Circuit Terminations Termination and Points for BB1 2 Single FAD or 1 Dual FAD Port Shelf A Communications with any shelf will transparently tell the Expansion Switch to move the test head to the proper port. Should the test resource be busy with an active test, the Expansion Switch will return a tap is busy response Wire Wrap Circuit Terminations Up to 4 Dual FAD Ports for The Expansion Switch can also be used in an inverted configuration, providing a single chassis access to multiple test heads. Serial Console Port Multi-function AUX Ports Ethernet Connectivity

5 Central Office and in Conjunction with Service Delivery Platforms Service delivery and creation platforms such as ATM and Frame Relay switches, routers and Class 5 switches continually evolve in an effort to increase subscriber density and extend the platform life cycle. This is typically accomplished through the design of high-density interfaces for both channelized and unchannelized services. These gains often come at the expense of diagnostic functionality. IP ATM Voice NB140 DACS STS-1 Access Deploying the in conjunction with these platforms not only enhances the testing functionality, but delivers the capability to test from a centralized remote location. Additionally, test equipment is reduced or eliminated and enables new service turn-up without a truck roll. POP Application Service Providers and the Enterprise Enterprise applications benefit from deploying where services Partners are provided internally or through third party service providers. Typical enterprise configurations can be complex when connections are required to satellite offices, customers and partners. Also, with offsite data storage, centralized control facilities and a multitude of carriers, management can become a huge challenge. Using the as the convergence point for all enterprise communication facilities, enables NOC personnel to quickly diagnose any service outage and initiate the steps required for service restoration without dispatching personnel or relying upon unqualified or local support. Customer LEC Customer IXC Application Server Data Storage Center NB56 BB12 IP Router ENTERPRISE DATA CENTER SNA Main Frame NOC 2-NB56 Strain Relief Bars Each Broadband Circuit is Comprised of TX and RX Facility to Equipment Interface Throughput End-Office Colocation with an M13 Multiplexer Competitive local exchange carriers often locate an M13 multiplexer in an end-office application with the purpose of taking DS1 handoffs from the incumbent local provider and backhauling on broadband services. Although cost-effective and space efficient, this M13 multiplexer provides minimal diagnostic functionality which can only be activated locally. Optimize Existing Resources Avoid Costly Truck Rolls Maintain Service Commitments Redundant -48V DC Power Feeds Protective Cover Deploying the in conjunction with this platform not only provides the testing functionality, but also enables the testing to be accomplished from a centralized remote location. 1,2,3 27,28 Transmission Equipment NB28 M13 ILEC COLOCATION FACILITY

6 Common Equipment MKT NB140 System Chassis: Supports up to 140 T1 or E1s; a single 1/2/4 port test access module; 5U high. 19" (48.26 cm) W x 16" (40.64 cm) D x 8.75" (22.22 cm) H. 40 lbs. MKT MKT MKT MKT MKT BB12 System Chassis: Supports up to 12 /STS-1 circuits. Can configure with single or dual FAD access; 3U high. 19" (48.26 cm) W x 16" (40.64 cm) D x 5.25" (13.33 cm) H. 27 lbs. System Chassis: Supports up to 24 /STS-1 circuits. Can configure with single or dual FAD access; 5U high. 19" (48.26 cm) W x 16" (40.64 cm) D x 8.75" (22.22 cm) H. 37 lbs. NB56-BB12 System Chassis: Supports up to 12 /STS-1 circuits and up to 56 circuits; 5U high. 19" (48.26 cm) W x 16" (40.64 cm) D x 8.75" (22.22 cm) H. 40 lbs. Control Module: Provides centralized control interfaces. 3 DB-9 connectors (labeled Control, Aux 1, Aux 2) supply the RS-232 interfaces. 1 RJ-45 supplies the 10Base-T interface and 1 DB-15 AUI interface. Interoperable with all chassis. Power Supply -48 Vdc: Load sharing with independent feeds. Interoperable with all chassis. Narrowband Modules MKT Module: Provides access to 28 circuits. MKT MKT MKT MKT MKT Access Module - 1 Port with redrive: Same as MKT with optional redrive. Access Module - 2 Ports: Supports two single or dual FAD test ports. Access Module - 2 Ports with redrive: Same as MKT with optional redrive. Access Module - 4 Ports: Supports four single or dual FAD test ports. Access Module - 4 Ports with redrive: Same as MKT with optional redrive. Broadband Modules MKT Expansion Switch: Adjunct expansion switch enables 3 Broadband units to connect one or two test heads to 1 system. Can use with BB12,, and NB56-BB12. MKT MKT MKT Circuit/ Module /STS-1-6/1: Supports 6 /STS-1 circuits and one single FAD test port. (Two cards required for dual FAD). Circuit Module /STS-1-6: Supports 6 /STS-1 circuits. Circuit/ Module /STS-1-3/1: Supports 3 /STS-1 circuits and one single FAD test port. (Two cards required for dual FAD). RTM Components MKT RTM Server: RTM server with no test heads. Includes one client. Software only. MKT MKT MKT RTM Server: Same as MKT but includes test head control functionality. RTM Head: Provides graphical interface to common industry test heads, sold separately. Consult factory for options. RTM Client: Provides additional client level (NOC personnel) access. System Capacity /STS-1: Starts at 3, expands in increments of 3 or 6 circuits up to 72 circuits. : Starts at 28, expands in increments of 28 circuits up to 140 circuits. Environment Physical Interfaces Temperature: 5ºC (41ºF) 40ºC (104ºF), Humidity: 0 to 85% (non-condensing) /STS-1: BNC : Wire Wrap sq. : 75 Ohm BNC External Panel Transmission Protocols Control Control Interface Visual Indicators /STS-1 and Transparent to all protocols ASCII Terminal VT100, TL1 Compatible Control Devices, SNMP 10 Base-T/AUI, Asynchronous RS-232 (9600 bps; 8 Data Bits, 1 Stop Bit, No parity) 1 Activity LED for each /STS-1 and circuit indicates active test 2 Activity LEDs for each power supply (Green On Red Off ) Activity LEDs for each test port (Monitor, Split, Loop, A, B E, F ) Power Standards -48 Vdc Standard, 2 Power Feeds, Terminal Block Connectors (16-18 AWG) NEBS-Level 3, CE, UL, FCC, CSA REG ISO 9001 I STERED C OMPANY SGS Printed in the USA. Specifications subject to change without notice. Other product names may be trademarks and/or registered trademarks of their respective owners. Eastern Research, 2001 DOC Eastern Research designs and manufactures the DNX Series of Multiservice Access Concentrators, the line of Access Systems, and an extensive line of Internetworking and Tech Control products for network service providers and corporate end-users. Eastern s carrierclass solutions enable service providers worldwide to reduce operational infrastructure costs while increasing network reliability and service. The company s mission is to become the leading global supplier of Access Concentration, Grooming and Access technology to incumbent and emerging wireline and wireless service providers. Eastern Research offers comprehensive support services for all of its products. These services are designed to assist in maximizing system uptime, while helping to control operating costs. Eastern offers hot-line and dial-in diagnostic support. All products come with a two-year, next business day overnight replacement warranty. Eastern Research, Inc. 225 Executive Drive Moorestown, NJ 08057, USA Fax: