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Midcontinent MD41 Series Installation Manual And Operating Instructions

Gps annunciation control unit for ii morrow apollo 2001tso / 2001gps / 2101 gx50 /gx60
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INSTALLATION MANUAL AND
OPERATING INSTRUCTIONS
MD41-( ) Series GPS ANNUNCIATION CONTROL UNIT
FOR II MORROW APOLLO 2001TSO / 2001GPS / 2101
MD41-1728
MD41-1738
MD41-1724
MD41-1734
Mid-Continent Instruments and Avionics
th
9400 E. 34
Street N., Wichita, KS 67226 USA
Phone 316-630-0101  Fax 316-630-0723
GX50 /GX60
28vdc
Horizontal Mount
28vdc
Vertical Mount (shown on page 10)
14vdc
Horizontal Mount
14vdc
Vertical Mount (shown on page 10)
Manual Number 8013641
REV. 0 Nov 12, 1998

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Summary of Contents for Midcontinent MD41 Series

  • Page 1 INSTALLATION MANUAL AND OPERATING INSTRUCTIONS MD41-( ) Series GPS ANNUNCIATION CONTROL UNIT FOR II MORROW APOLLO 2001TSO / 2001GPS / 2101 GX50 /GX60 MD41-1728 28vdc Horizontal Mount MD41-1738 28vdc Vertical Mount (shown on page 10) MD41-1724 14vdc Horizontal Mount MD41-1734 14vdc Vertical Mount (shown on page 10) Mid-Continent Instruments and Avionics...
  • Page 2 TABLE OF CONTENTS SECTION 1 GENERAL DESCRIPTION INTRODUCTION SPECIFICATIONS, TECHNICAL 1.2.1 PHYSICAL CHARACTERISTICS 1.2.2 ENVIRONMENTAL CHARACTERISTICS 1.2.3 SPECIFICATIONS, ELECTRICAL 1.2.4 FRONT PANEL CONTROLS AND ANNUNCIATIONS 1.2.4.1 CONTROLS 1.2.4.2 ANNUNCIATIONS 1.2.5 INTERFACE 1.2.6 EQUIPMENT LIMITATIONS 1.2.7 MAJOR COMPONENTS SECTION 2 INSTALLATION CONSIDERATIONS COOLING EQUIPMENT LOCATION ROUTING OF CABLES...

  • Page 3: Section 1 General Description

    SECTION 1 GENERAL DESCRIPTION INTRODUCTION The MD41-172X/173X is a compact, self -contained GPS Annunciation and Control unit. It combines all the necessary functions required to interface the II Morrow Apollo 2001TSO / 2001GPS / 2101 /GX50 and GX60 approach-certified GPS receivers with the MD41-244/248 remote mounted relay transfer system.
  • Page 4 1.2.3 SPECIFICATIONS, ELECTRICAL Design All Solid State MD41-1724/1734 (14VDC) 0.40 Amps MD41-1728/1738 (28VDC) 0.30 Amps MD41-1728(5V)/1738(5V) (28DC) 0.30 Amps 1.2.4 FRONT PANEL CONTROLS AND ANNUNCIATIONS 1.2.4.1 CONTROLS NAV/GPS Alternate action switch, when pressed, will select NAV (VOR) or GPS presentation on HSI/CDI. GPS/SEQ Momentary action switch, when pressed, will select between waypoint sequencing and waypoint hold mode.
  • Page 5 1.2.5 INTERFACE (cont.) Lamp Test Receives ground from remote rest switch J1 Pin 7 to light all annunciations. (optional connection) GPS/SEQ Select Provides a momentary logic low to the J1 Pin 10 GPS receiver when GPS/SEQ is selected. OBS/HLD annunciation Receives a logic low to from the GPS receiver J1 Pin 23 to annunciate OBS/HLD.

  • Page 6: Equipment Limitations

    1.2.6 EQUIPMENT LIMITATIONS The MD41-( ) series control units contain specific dash numbers to be used with various GPS receivers. The installer must match the correct controller part number with the GPS receiver being installed. The conditions and tests required for TSO approval of this article are minimum performance standards.

  • Page 7: Section 2 Installation Considerations

    SECTION 2 INSTALLATION CONSIDERATIONS COOLING No direct cooling is required. As with any electronic equipment, overall reliability may be increased if the MD41-( ) is not located near any high heat source or crowded next to other equipment. Means of providing a gentle air flow will be a plus. EQUIPMENT LOCATION The MD41-( ) annunciation control unit must be mounted as close to the pilot’s field of view as possible.

  • Page 8: Section 3 Installation Procedures

    SECTION 3 INSTALLATION PROCEDURES GENERAL INFORMATION This section contains interconnect diagrams, mounting dimensions and other information pertaining to the installation of the MD41-( ). After installation of cabling and before installation of the equipment, ensure that power is applied only to the pins specified in the interconnect diagram.
  • Page 9 REAR VIEW OF J1 CONNECTOR PIN NO. 1 ---------------------------- GPS ANNUNCIATION (receives ground from remote transfer relays) 2 ---------------------------- NAV ANNUNCIATION (receives ground from remote transfer relays) 3 ---------------------------- MSG ANNUNCIATION (receives logic low from GPS receiver) 4 ---------------------------- APR ANNUNCIATION (receives logic low from GPS receiver) 5 ---------------------------- DIMMER IN (from aircraft dimming bus for push-button lighting) 6 ----------------------------...
  • Page 10 Note 1: Use two 4-40 X 3/8” Flat Head Phillips Screws for Mounting FIGURE 3-2 OUTLINE DRAWING REV. 0 Nov. 12, 1997...
  • Page 11 FIGURE 3-3 WIRING DIAGRAM, MD41-1728/1738/1728(5V)/1738(5V), 1724,1734 Apollo 2001GPS / 2001TSO / 2101 / GX50 / GX60 REV. 0 Nov. 12, 1997...
  • Page 12 FIGURE 3-4 WIRING DIAGRAM, MD41-1700 SERIES ACU WITH AlliedSignal KI 208A/209A COURSE DEVIATION INDICATOR FOR THE Apollo 2001GPS / 2001TSO / 2101 / GX50 / GX60 REV. 0 Nov. 12, 1997...

  • Page 13: Section 4 Post Installation Checkout

    SECTION 4 POST INSTALLATION CHECKOUT PRE INSTALLATION TESTS With the MD41-( ) disconnected, turn on the avionics master switch and verify that aircraft power is on pin 13 for. Using an ohm meter, verify pin 25 is aircraft ground. OPERATING INSTRUCTIONS Turn off the avionics master switch and connect the mating connector to the MD41-( ).

  • Page 14: Environmental Qualification Form

    ENVIRONMENTAL QUALIFICATION FORM RTCA / DO160C NOMENCLATURE: MD41-( ) GPS ANNUNCIATION CONTROL UNIT MODEL NO: MD41-( ) TSO NO: C129 CLASS A1 MANUFACTURER TEST SPECIFICATION: MPS 7015613 MANUFACTURER: Mid-Continent Instruments and Avionics 9400 E. 34 Street N. Wichita, KS 67226 Phone (316) 630-0101 Conditions Section...
  • Page 15 Environmental Qualification (cont.) Conditions Section Description of Conducted Tests Sand and Dust 12.0 Equipment identified as Category X, no test required Fungus 13.0 Equipment identified as Category X, no test required Salt Spray 14.0 Equipment identified as Category X, no test required Magnetic Effect 15.0 Equipment tested to Class Z...

This manual is also suitable for:

Md41-1728Md41-1738Md41-1724Md41-1734

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