A nationwide provider of healthcare equipment used in hospitals needed a serial I/O intensive computing solution for the redesign of a critical care monitoring system. In their application, a monitoring device provides patient information via RS-485 that must be received and archived by a central server. To avoid the cost of a computer in each room, the system must interface up to 16 patient rooms, timestamp the data, and then upload the information to the server. The system, running Windows CE, incorporates 16 two-wire RS-485 ports with RJ45 connectors. To power peripheral devices, 24V power is passed through pin 5 of each RJ45 port. The design also includes 10/100BaseT Ethernet, analog video, an externally accessible CompactFlash socket, and other standard PC functionality in a 1U rackmount chassis.
Download the rest of the “Customer Spotlight Relio Patient Monitoring System” article (651kb printer-friendly PDF), below the image, for complete details on how Sealevel engineers overcame mechanical and software design challenges with this important system. Sealevel also offers a variety of standard Industrial Computing solutions.
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