Users Manual

ALL
EFFECTIVITY
© Honeywell International Inc. Do not copy without express permission of Honeywell.
Page 1-10
22 Apr 2019
23-15-49
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ASPIRE-400
NOTE: Figure 1-4 is a logical representation of the SDU functions and interconnections and
does not imply a direct mapping to the physical implementation
E. SDU System Characteristics
(1) Table 1-3 provides the specifications for ASPIRE 400 SDU.
Table 1-3. SDU Component Specifications
Component
Characteristic
Specification
SDU
Part Number 90402651-000
Length
14.604 Inches (370.94 mm) MAX
Width
2.41 Inches (61.2 mm) MAX
Height
7.88 Inches (200.1 mm) MAX
Mounting Information 2MCU Tray per ARINC 600
Weight
8.00 Lbs (3.63 Kg) MAX
Power Dissipation 70 W MAX
Power Consumption 60 W MAX
Operating Voltage 115 VAC
Cooling UNIT IS DESIGNED TO OPERATE IN FORWARD
EBAY, CABIN, AND NON-PRESSURIZED
COMPARTMENT. UNIT REQUIRES FORCE AIR
COOLING AS FOLLOWS:
– AIR FLOW OF 15.4 KG/HR (34.0 LB/HR)
– AMBIENT PRESSURE OF 101.3 KPA (14.696 PSI)
– AIR TEMPERATURE OF 40 C (104 F). INTERNAL
FAN USED DURING LOSS OF COOLING
CONDITION:
– FLOW RATE MAX 3.98 CFM
– FAN FILTRATION REQUIREMENTS: NONE
Maintenance No scheduled maintenance Required
Interfaces 9 PIN D-SUB Receptacle
RJ45 Connector
System Requirements RTCA/DO-160G
4. SCM System (TASK 23-15-49)
A. Aspire 400 SDU Configuration Module (SCM) Architecture
(1) The SCM provides memory for storage of ORT files and licenses, USIMs needed for SBB
network access and a Security Smart card that is needed for Safety service
DRAFT
3rd rvw Draft as of:
29 January, 2020