Справочник Пользователя для EMS Technologies Canada Ltd. HSD-X
Page 3–10
18 September 2007
18 September 2007
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion™ HSD-128 High-speed Data Terminal
Figure 3–1. HSD-X Physical Placement Requirements
C. Environmental Requirements
The environmental requirements that must be considered during the physical placement
of the HSD and HSD-X transceivers are based on the RTCA/DO-160D Environmental
Specifications detailed in "System Description" on page 1-1.
of the HSD and HSD-X transceivers are based on the RTCA/DO-160D Environmental
Specifications detailed in "System Description" on page 1-1.
The standard mounting trays for the HSD and HSD-X offer a number of fan configuration
options depending on the physical placement of the LRU in the aircraft.
options depending on the physical placement of the LRU in the aircraft.
(1) Heating and Cooling
Refer to "System Description" on page 1-1 for a complete listing of the
RTCA/DO-160D Environmental Specifications for the HSD and HSD-X transceivers.
RTCA/DO-160D Environmental Specifications for the HSD and HSD-X transceivers.
(a) HSD Transceivers
When selecting an installation location for the HSD transceiver, consider the
heating and cooling requirements listed below:
heating and cooling requirements listed below:
•
Power Dissipation (DC models): 275 Watts nominal, 370 Watts maximum
•
Power Dissipation (AC models): 275 Watts nominal, 385 Watts maximum
•
Cooling Air: per ARINC 600
•
Recommended Flow rate: 175 lbs/hr
•
Pressure drop: 0.05”, ± 0.025” H
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(b) HSD-X Transceivers
When selecting an installation location for the HSD-X transceiver, consider the
heating and cooling requirements listed below:
heating and cooling requirements listed below:
•
Power Dissipation: 34 Watts
•
Cooling Air: per ARINC 600
•
Recommended Flow rate: 15.5 lbs/hr
•
Pressure drop: 0.044”, ± 0.025” H
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