Wavecom demonstrated its WiSIM (Wavecom integrated subscriber identity module) at the recent Machine to Machine 2007 in Paris. This is an innovative solution that takes a major step to facilitating the deployment of wireless devices in cellular networks.
Laurent Girault, Wavecom technical marketing director, explains: "Many industrial devices present a set of complex design challenges as they become adapted to wireless communication. One such challenge is the integration of the SIM card. We are extremely pleased to be the first to have demonstrated a technology which fully embeds the SIM function into selected GSM wireless CPU models. This breakthrough removes one more obstacle to stimulating wireless M2M and automotive market growth."
Specific requirements for industrial wireless devices include: long-life - more than 10 years for utility meters, for example - and harsh environments such as extreme temperatures and excessive vibrations for vehicles. The typical SIM card, like those used in GSM mobile phones and other consumer electronics are built into plastic cards and therefore do not address the rigorous demands for many industrial applications.
Wavecom will offer the WiSIM component as an embedded option in selected Wavecom GSM/GPRS wireless CPU families including Quik, plug-and-play and its Wireless Microprocessor range. By integrating the SIM at the chip level, it says both customers and operators benefit from a simplified and faster cellular subscription. The robust industrial design ensures proper functioning in harsh conditions, which reduces the risk of disconnected devices often linked to high-value, time-sensitive transactional data. In addition, with the SIM embedded into Wavecom's Wireless CPU, logistics and management issues associated with the SIM card inventory becomes easier, more cost effective and more secure.
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