Product manual

Barracuda 2LP Product Manual, Rev. D 29
Air-flow cooling
ST31250DC and ST32550DC wide differential SCA drives
MTBF
800k hours
Card Component Reference case temperature (°C)
PYJX ADC 1 49
PYJX Detector 2 60
PYJX Microprocessor 3 55
PYJX Driver 4 57
The air-flow pattern with which the temperature guidelines above were
generated is shown in Figure 6 (opposite direction). Local average air
velocity was 0.61 msec (120 lfpm) and inlet air temperature to the drive was
30°C (86°F), plus a 5°C temperature rise in the test enclosure (35°C ambient
local to the drive).
The maximum allowable HDA case temperature is 60°C (see Figure 13).
2
3 1
4
Figure 12. PYJX temperature measurement locations
Measure the HDA housing temperature at the location specified in Figure 13.
.50
1.00
Figure 13. Temperature measurement location (ST32550N shown)