Addressing interoperability concerns, the company is upgrading its 3U and 6U VPX backplanes so that they are compatible with the OpenVPX system standard. The 3U six-slot OpenVPX backplane features a centralized switching topology for a Gigabit Ethernet switch card. The company will also be updating its 17-slot VPX development, five-slot 6U VPX, and seven-slot 6U Hybrid VPX backplanes. For further details and pricing, call BUSTRONIC CORP., Fremont, CA. (510) 490-7388.