Publication No. 980824-164AH/BH Rev. A
1260-164AH/BH User Manual
Astronics Test Systems
Specifications 1-3
Power
Dissipation –
1260-164AH/BH
The cooling of the Adapt-a-Switch carrier is dependent upon the
chassis into which it is installed. The carrier can nominally
dissipate approximately 100 W. Even with all channels driven to
maximum outputs, up to two 1260-164AH plug-ins may be used
together in a 1260-100 without exceeding the maximum allowable
power dissipation of the carrier.
If the 1260-164AH will be used in conjunction with other cards, the
dissipation should be computed and summed with the total worst-
case dissipation of the remaining modules.
For example, a 1260-164AH module would dissipate the following
energy:
Quiescent power dissipation = 0.75 W maximum
With one coil energized = 3.75 W maximum
For example, a 1260-164BH module would dissipate the
following energy:
Quiescent power dissipation = 0.75 W maximum
With one coil energized = 3.75 W maximum
With two coils energized = 7.50 W maximum
This is acceptable power dissipation for an individual plug-in
module. If one additional module is likewise loaded, then the
overall carrier dissipation is approximately 7.5 W for the –164AH
and 15 W for the –164BH, both of which are well within the cooling
available in most commercial VXIbus chassis.
Summary of Contents for RACAL INSTRUMENTS 1260-164AH
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