UPS Aviation Technologies AT7000, Руководство по установке

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Installation Manual Installation
560-0405-00 Rev –
December 14, 2001
Page 11
© 2001 by UPS Aviation Technologies Inc.
Section 3 - Installation
This section describes the installation of the AT7000 Mode S Transponder.
3.1 Pre-Installation Information
The transponder can be mounted in any convenient location in the E/E bay; however, it
should be mounted within 50 feet of the antenna unless a low-loss coaxial cable is used to
maintain a worst case loss of 3 dB per ARINC 718-4/718A. Top and bottom coaxial run
length differences can be compensated for by use of the antenna delay program pins. See
Figure 4, TP3C through TP3F The unit can utilize external cooling air in accordance
with ARINC 600, ARINC 404, or operate in convection cooled environments. However
cooled, the airflow rate provided to the transponder should be 13 kg/hr and the pressure
drop of the coolant air flow through the equipment should be 5 + 3mm of water.
3.2 Equipment Required
Table 1 - Equipment for Installation
LRU Mating Connector Qty/System
AT7000 NSXN2P203X0105 1
3.3 Mechanical Installation
3.3.1 Location of LRUs
The AT7000 is located in the E/E bay. The Control Panel is located in the cockpit.
Figure 3 – Potential Equipment Locations
3.3.2 AT7000 Provisions
The AT7000 is mounted in a 4 MCU mounting tray per ARINC 600. See Figure 3.