Northern Airborne Technology RGT-102 - Manual (Page 17)

SM53 Rev. 4.00 RGT-102 EGPWS Control Panel Manual
Jul 12, 2005 Page 3-1
ENG-FORM: 806-0106.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
Section 3 Operation
3.1 Introduction
Information in this section consists of the functional and operational procedures for the
RGT-102 Series Enhanced Ground Proximity Warning System (EGPWS) Control Panel.
3.2 General
The RGT-102 Series EGPWS Control Panel is mounted in the cockpit for flight-crew
control of the terrain function of an installed ground proximity system, and includes
function and fail-warning indicators.
3.3 Operation Specifics
All versions of the RGT-102 operate in a similar manner. Below are three variants of
the RGT-102 showing the differences in the front-panel text.
907-1102-022 907-1102-122 907-1102-222
Each control panel provides DISPLAY and SYSTEM illuminated annunciator switches.
3.3.1 DISPLAY
The TERR (terrain) switch provides fast manual selection/deselection of the terrain
mode of the EGPWS. It illuminates blue when the terrain function is on.
3.3.2 SYSTEM
A protective clear cover over the SYSTEM switch prevents accidental activation.
The SYSTEM switch for all variants allows the override function of the system to be
selected or deselected; this is indicated by the condition of the OVRD (override) light of
the upper half of the SYSTEM switch. Depending on the variant, the lower half of the
SYSTEM switch provides status indication - FAULT, INOP or FAIL conditions - of the
EGPWS system.
FAULT FAIL