Architecture and performance of the Engineering model Architecture and performance of the Engineering model Architecture and performance of the Engineering model Architecture and performance of the Engineering model

The Wide-band Inter-Networking engineering test and Demonstration Satellite (WINDS) is for an experiment system utilizing positively the satellite communications. In this system, an onboard baseband switch system is required to interconnect the multi-beams and data streams over satellite. The Onboard baseband switch, which called ATM Baseband Switch (ABS), consists of multi-career demultiplexers, multi rate burst demodulators, ATM (Asynchronous Transfer Mode) based switches and fast burst modulators. Such composition makes the high speed and flexible satellite switch. The ABS can select the range of input rate from 1.5Mbps to 155Mbps dynamically per input line on demand. And the switch can select point to point and/or point to multi-point connection using ATM cell switching. These flexible and high-speed features are applicable to future broadband satellite network. CRL and NEC Toshiba space Ltd. (NTSpace) are investigating and developing the ABS for WINDS based on CRL researches [1],[2]. This paper describes the preliminary study results and the main features.