News, views and contacts from the global telecommunications industry

Latin American, Pan-Latin America

Key Data

In 1999, Diginet Americas, Inc, branded as Diveo in Latin America, resolved to build the first fixed wireless network in the region. This was to cover the urban markets of Argentina, Brazil, Colombia and Peru. Diginet has secured additional spectrum and operating licenses in Brazil and Panama, launched commercial services in Säo Paulo, Brazil and has been awarded licenses to offer local and long-distance voice telephony services in Argentina. Ericsson will provide the necessary equipment and services, in order to construct an end-to-end broadband fixed wireless network solution, including the handling of data, voice and video. The network is being built around Ericsson's AXD 301 asynchronous transfer mode (ATM) switch and its MINI-LINK digital microwave wireless systems, which are optimised for IP-based services. The project is valued at approximately $100 million.


The fixed and wireless solutions for the implementation of multi-service networks are based on open-standard, packet-switching technologies designed for real-time services. The end-to-end network architecture is based on a combination of ATM and internet protocol (IP) networking solutions. The technology provides one single ATM backbone for all of the services, including both IP and traditional telephony, frame relay, digital private line and LAN-to-LAN. Mobile, microwave transport and ATM technologies are being combined in the MINI-LINK product range to create point-to-point and point-to-multipoint access systems. Diginet's fixed wireless broadband multi-service platforms went into commercial service in Säo Paulo in Brazil and Bogota in Colombia in September 1999. Diginet's networks are currently available to carriers, system integrators, internet service providers (ISPs) and large-to-medium corporate users throughout the Bogota and Säo Paulo metropolitan areas.

The network architecture has been designed to support Latin America's increasing demand for data communications and internet services, while supporting carrier-class legacy services, which include voice and clear-channel digital private lines for end-users and other carriers. It is hoped that the multi-service ATM network architecture will play a decisive role in eliminating the chronic bottleneck that users experience today when accessing the internet. The system supports throughput capacity, comprehensive service protection and restoration capabilities.

AXD 301

The AXD 301 multi-service switch is designed for large public networks, however a minimum configuration of the AXD 301 system is subrack, making it also well suited to small public networks or enterprise networks. AXD 301 is used for carrying multiple services and large amounts of traffic. The services supported include ATM, IP/MPLS, frame relay, circuit emulation and voice services. Any combination of services can be handled simultaneously and the system scales from 10 gigabits per second (Gbps) in one subrack up to 160Gbps. The architecture allows a further expansion, up to 2.5Tbps.


Microwave technology is being used increasingly for telecommunications systems, with a yearly growth of 25 to 30 per cent. Microwave radios are considered to be the best transmission alternatives based on time-to-operation, flexibility and independence requirements. The MINI-LINK system provides point-to-point communication from 2 to 17x2 megabits per second (Mbps), operating within the 7-38GHz bands.