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Single board VME computers

  Closer to the machinery, VME based computers contain the interface hardware, and run most real-time tasks under the VxWorks operating system. Hardware interfaces are provided to connect the telescope servos and instrumentation to the computer systems.

The real-time needs of the telescope are met using Motorola MVME-167 68040 based SBC's. Twelve of these run M&C code, while 2 others are supplied with the contractor's servo system. See Table 2 for the features found on the MVME-167.



68040 CPU, 33 MHz
SCSI Interface
10 Mbit/s Ethernet Interface
4 Serial Ports
1 Parallel Port
4 Counter/Timers
Demonstrated MTBF:
Mean 147,507 hours (16.8 years)
90% Confidence 85,522 hours(9.8 years)
Table 2: MV-167 Characteristics

John Ford
Fri Mar 13 16:06:38 EST 1998