Honeywell HS-600, Description And Installation Manual

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SYSTEM DESCRIPTION AND INSTALLATION MANUAL
HS--600 High Speed Data System
23--20--31
30 May 2002
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Page 1--7
3. Component Descriptions
A. HS--600 High Speed Data Unit (HSU)
(1) The HSU is designed to perform reliably under field conditions and provide ease of
maintenance when required. The HSU has a modular design to permit easy
replacement of each circuit card assembly (CCA). All CCAs are built to standards that
qualify them for both airline and business aircraft usage.
(2) The HSU is packaged as a 4 modular concept unit (4--MCU). The mechanical chassis
is constructed of aluminum alloy sheet metal. The HSU requires external cooling air
in accordance with ARINC 600 or ARINC 404 to maintain the highest possible
mean--time--between--failures (MTBF). In installations where this is not available, a
mounting tray with an integral fan is required. Refer to Table 1-15. The HSU is shown
in Figure 1-2.
(3) Table 1-12 gives the leading particulars for the HSU and Table 1-13 gives the
DO--160D categories that this equipment meets or exceeds.