Teleport Networks
Features
- Reduction in Rack Space
- Proactive Performance Monitoring
- Remote Management Access and Integral Diagnostics
- ENvision GUI-based EMS
- T1, E1, T3, E3, OC-3/STM-1 Interfaces
- T1/E1 Conversion and G.747 Support
- Improved Circuit Provisioning Time
Introduction
Teleports are the ground-based side of the global satellite network – gateways that provide terrestrial networks with access to orbiting satellite transponders. But they are more than simple gateways. Teleports bridge incompatible systems and protocols, host and distribute content, and act as the hubs of broadband B2B networks. These companies range from small entrepreneurial operations with one to three facilities to large, publicly traded companies with teleports in multiple geographic markets.
Driven by the explosion of broadband and the wave of deregulation, Teleports have experienced astonishing growth. Yet, despite this growth, current economic conditions have created business challenges that require teleport operators to control operating expenses and capital investments and to rethink their telecom equipment deployments. As the number of users and their bandwidth increases, rack space within the Teleport becomes more of a concern and the need for bandwidth grooming becomes paramount.
Teleport Infrastructure
The domestic architecture of a Teleport site typically includes banks of satellite modems, racks of T1 CSUs, and multiplexers. Terrestrial circuits from the local carrier (carrying user data) are terminated with individual CSUs and/or multiplexers and connected to the bank of satellite modems on a one-for-one basis. This implementation consumes valuable rack space, does not support switching, and does not offer centralized management.
DNX Access Concentration Solution
Sycamore DNX Multiservice Cross-Connects combine the functions of a digital switch, multiple CSUs, and multiplexers in one small, scalable, and highly reliable platform. By replacing multiple legacy devices, the DNX reduces costs and rack space and enables more efficient circuit provisioning.
Typical Network Infrastructure
The DNX provides the teleport engineer with complete bandwidth grooming control. Individual DS0s or groups of DS0s (Nx56/64 Kbps) can be switched from the local access network to the appropriate satellite modem. Centralized control enables real-time performance monitoring and diagnostic capabilities for the Network Operations Center (NOC) or field technician. The NOC can perform circuit provisioning, automate diagnostic testing, and view real-time performance data via the ENvision Element Management System.
To ensure high reliability, the DNX can be configured with all common components redundant and N+1 redundancy for the narrowband and broadband network interfaces.
DNX Access Concentration
Drop and Insert
DNX grooming capabilities include Drop and Insert. User data can be cross-connected directly to the satellite network without the need to be demultiplexed. Bandwidth can also be switched directly between satellite networks. IP traffic can be dropped at the Teleport site and handed off to an Internet/Intranet Gateway router via a high-speed channelized interface. This provides complete flexibility for directing data as it enters and exits the Teleport.
Drop and Insert
Large End User Solutions
In large end user site applications, DNX systems can be placed on the customer premises. Rather than backhaul multiple T1 circuits, a T3 circuit can be used to interconnect the user site with the Teleport. In addition to providing cost savings (typically eight T1s is the crossover for a T3), this allows the teleport operator to quickly respond to bandwidth demands by activating additional T1 ports as needed. The cross-connect capabilities of the DNX also enable switching between user locations. End-to-end management ensures overall network resiliency and provides visibility and testing to the endpoint.
Large End User Solutions
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