Croatia Control Selects RAD's Optimux to Connect Air Traffic Control Towers

19th July 2007: RAD Data Communications, a provider of network access equipment for voice and data communications, has announced that Croatia Control, the organisation responsible for airspace regulation in Croatia, has invested in RAD's Optimux-4E1 optical line multiplexers. The Optimux products, which were sold through RAD's authorised distributor Nessco, are being used as communications links to connect air traffic control towers at Dubrovnik and Zadar airports with remote radio sites.

Croatia Control bought the Optimux products through Park Air Systems, which was commissioned by Croatia Control to upgrade its digital radio and remote control monitoring systems. "Croatia Control wanted an international company with a local agent and chose RAD," explained Nigel Aitken, consultant systems engineer at Park Air Systems. "We'd also used RAD's Optimux products before on a project for NATS, the UK's air navigation service provider."

Optimux-4E1 multiplexers provide low-cost, long distance E1 connectivity by extending multiple voice and data circuits over fibre optic links. They transmit four E1 channels and Ethernet up to 120 km over optical fibre. Croatia Control's Optimux multiplexers are equipped with hot swappable links and redundant power supplies, ensuring power redundancy and fail-safe operation.

Park Air Systems (www.parkairsystems.com) provides communication, navigation and surveillance (CNS) solutions for the world's airspace. It currently has an installed base encompassing 167 countries. A multinational operation with facilities in Europe, USA and Asia, the company is dedicated to implementing advanced air traffic control systems. The company is a wholly owned subsidiary of Northrop Grumman Corporation.