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General Information
more favorable thermal conditions, it may be possible to operate the module reliably at higher than 55û C with increased airflow. It is important to note that there are several factors, in addition to the rated CFM of the air mover, which determine the actual volume and speed of air flowing over a module.
Forced air cooling is required for the Atlas motherboard. Additional cooling is required with the installation of the MPC604 RISC processor. A
Table 1-3. MVME177 Specifications
Characteristics | SpeciÞcations |
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Power requirements | +5 Vdc (± 5%), 4.5 A (typical), 6.0 A (max.) |
(with both EPROM | (at 50 MHz, with 128MB ECC DRAM) |
sockets populated and | ± |
excluding external | +12 Vdc ( 5%), 100 mA (max.) |
(1.0 A (max.) with offboard LAN | |
LAN transceiver) | transceiver) |
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Operating temperature (refer to | 0û to 55û C at point of entry of forced air |
Cooling Requirements section) | (approximately 490 LFM) |
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Storage temperature | |
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Relative humidity | 5% to 90% |
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Physical dimensions | |
PC board with mezzanine |
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module only |
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Height | 9.187 inches (233.35 mm) |
Depth | 6.299 inches (160.00 mm) |
Thickness | 0.662 inches (16.77 mm) |
PC boards with connectors and |
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front panel |
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Height | 10.309 inches (261.85 mm) |
Depth | 7.4 inches (188 mm) |
Thickness | 0.80 inches (20.32 mm) |
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