Myricom Myrinet M3-M

Myricom Myrinet M3-M ... connected; Blinking: traffic.

A Power-PC microcontroller with RAM and flash memory communicates via individual serial links with small microcontrollers on port line cards, associated with XBar16s on the backplane, on a fan-monitoring board, and on the monitoring line card itself. The standard firmware runs under VxWorks, and provides SNMP as well as a simple web server.

Small-Microcontroller functions: self-test, board identification, voltage monitoring, and temperature monitoring (upstream & downstream in the air flow). All status information is reported on demand through the serial link to the main microcontroller.