Chapter 2. INSTALLATION
10 | ADTS 405 Mk2 Instruction Manual-English © 2015 General Electric Company – All rights reserved.
Table 2-2: DC Input Connector
CAUTION A protective EARTH connection must also be made for DC operation or
specified EMC performance may be impaired.
2.4 Positioning of the ADTS
2.4.1 405R Rack-mounted version
It is important that the position of the ADTS 405 in relation to the UUT is known. An altitude
correction must be made to allow for the difference in height between the reference level, indicated
on the mimic panel, and the UUT. The Reference section contains details of altitude correction
(SETUP, ALTITUDE).
WARNING OBSERVE THE APPROPRIATE SAFETY INSTRUCTIONS AND PROCEDURES
DETAILED IN THE AIRCRAFT MAINTENANCE MANUAL AND COMPONENT MAINTENANCE
MANUALS.
Figure 2-2: ADTS 405R Altitude Reference
2.4.2 405F Flightline version
It is important that the position of the ADTS 405F in relation to the aircraft altitude sensors is
known. An altitude correction must be made to allow for the difference in height between the
reference level and the aircraft's altitude sensors. The Reference section contains details of altitude
correction (SETUP ALTITUDE).
ADTS Pin Cable Colour Function
1 Grey + 28V
2 White 0V Return
EARTH Green Protective Ground
rack-mounted ADTS 405R
ADTS panel marked reference level
UUT
UUT reference level
requires negative
altitude correction value
entered when below ADTS
Corrected altitude output = true altitude output increased by height difference
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