PC/104-plus card connects multiple embedded system cards
Mesa Electronics introduced the 4I71 stackable PC/104-plus card that combines a 100BaseT Ethernet MAC with a 9-port switch. The card makes it easy to connect multiple embedded system cards without the awkward power or mechanical problems with consumer type Ethernet switches.
By Control Engineering Staff
Richmond, CA — Mesa Electronics introduced the 4I71 stackable PC/104-plus card that combines a 100BaseT Ethernet MAC with a 9-port switch. The card makes it easy to connect multiple embedded system cards without the awkward power or mechanical problems with consumer type Ethernet switches.
The PC/104-Plus specification incorporates all of the PC/104 features, with the added advantage of the high speed PCI bus. The physical size, mounting configuration and electrical interconnect portion of the PC/104 specification remain unchanged, but PC/104-Plus adds a third connector supporting the PCI bus, reduces component height on the topside and increases the bottom to increase module flexibility.
The 4I71 card’s 8 Ethernet ports support autonegotiation allowing connections with half and full duplex, 10 and 100 BaseT devices plus auto MDX, eliminating the need for crossover cables. The Ethernet MAC is a Micrel 8842P, which has advanced features, such as hardware TCP checksum calculation for optimum MAC performance, and drivers for most operating systems. The switch has sufficient bandwidth to support full duplex wire speed connections on all ports.
Price for the 4I71 is $147 in multi-100-unit quantities.
—Edited by C.G. Masi , senior editor
|Search the online Automation Integrator Guide|
Case Study Database
Get more exposure for your case study by uploading it to the Control Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.
These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.
Click here to visit the Case Study Database and upload your case study.