SANDIA aerospace MARC-70 Simplifying Complex Installations Download

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MARC-70 Interface Modules

Simplifying Complex Installations

SANDIA aerospace

PMA Certified

Multiple Modules to Choose From

Certified to 50,000 Feet or Above

Three Enclosures to Fit Every Requirement

Photo Courtesy NASA Hubble

Summary of Contents for MARC-70

Page 1: ...rface Modules Simplifying Complex Installations SANDIA aerospace PMA Certified Multiple Modules to Choose From Certified to 50 000 Feet or Above Three Enclosures to Fit Every Requirement Photo Courtesy NASA Hubble ...

Page 2: ...SA 15 has 14 inverter out puts PMA Pending SA 24 Diode Isolation Module Provides 23 lines of diode ground in ground out isolation Internal FET al lows simultaneous test of all lines to ground Requires 28Vdc in for test FAA PMA Choice of Enclosures SRU 1 Single Card Enclosure SRU 5 Five Card Enclosure SRU 10 Ten Card Enclosure Mil Qualified Switching Modules SR 623 The SR263 has two six pole nitrog...

Page 3: ...MARC70 Installation Manual SA 3 L NVG SA 15 SA 24 305147 00 3700 Osuna Rd NE Suite 711 Albuquerque NM 87109 505 341 2930 www sandia aero SR 34 SR 54 SR 64 SR 263 SR 342 SR 623 SRU 1 SRU 5 SRU 10 ...

Page 4: ...20120125 This document and the information contained herein is the proprietary data of SANDIA aerospace Inc No part of this document may be transmitted reproduced or copied in any form or by any means without the prior written consent of SANDIA aerospace Inc Due to SANDIA aerospace s continued product and quality improvement programs information contained in this document is subject to change with...

Page 5: ...1 Outline Dimensions 11 3 2 2 SRU 5 Mounting Instructions 12 3 2 2 1 SRU 5 Outline Dimensions 12 3 2 3 SRU 10 Mounting Instructions 12 3 2 3 1 SRU 10 Outline Dimensions 12 3 3 Interconnect Wiring 14 3 3 1 SA 3 SA3L Regulator Dimming Module 14 3 3 2 SA 3NVG Regulator Dimming Module 14 3 3 3 SA 15 Inverter Module 14 3 3 4 SA 24 Diode Isolation Test Module 15 3 3 5 SR 34 12 Pole Switching Module 15 3...

Page 6: ... 3 7 SA 24 Schematic and Pinout 20 Figure 3 8 SR 34 and SR 64 Schematic and Pinout 21 Figure 3 9 SR 54 Schematic and Pinout 22 Figure 3 10 SR 263 Schematic and Pinout 23 Figure 3 11 SR 343 Schematic and Pinout 24 Figure 3 12 SR 623 Schematic and Pinout 25 Figure 3 13 SA 3 SA 3L Adjustment Locations 26 Figure 3 14 SA 3NVG Adjustment Locations 26 Page 3 305147 00 3 4 Calibration Procedures 25 3 4 1 ...

Page 7: ...e of the pins on the module s connector The installing agency MUST insert a key ing plug into the appropriate pin location on the harness connector to complete the keying process Each MARC70 interface module is FAA PMA approved and has been tested to meet the require ments necessary to allow it to be mounted outside the aircraft s pressure vessel Each interface mod ule has passed the vibration req...

Page 8: ... s pressure vessel For installation flexibility the SRU 10 and the installed interface modules can be mounted in any axis Ample room should be allowed for both the connector and for inserting and removing the interface modules 1 2 TECHNICAL CHARACTERISTICS The conditions and tests performed for FAA PMA approval of these articles are minimum perfor mance standards It is the responsibility of the in...

Page 9: ... 220mA SR 623 305002 01 55o to 70o C 70 000 Ft 28Vdc 250mA SRU 1 305146 00 55o to 70o C 70 000 Ft N A N A SRU 5 305018 00 55o to 70o C 70 000 Ft N A N A SRU 5 01 305018 01 55o to 70o C 70 000 Ft N A N A SRU 10 305014 00 55o to 70o C 70 000 Ft N A N A Unit Part Number PMA STC Aircraft SA 3 305005 01 Yes Yes ST09475SC ST3007WI T Embraer EMB120 Cessna Citation 650 SA 3L 305005 02 No SA 3NVG 306070 00...

Page 10: ...afety 7 0 Tested to Category A Aircraft Type 5 Random Orientation Vibration 8 0 Tested to Category S Aircraft Zone 2 using vibration curves B and M Tested to Category U Helicopter Zone 2 using vibration curves F and F1 Explosion 9 0 Equipment identified as Category X no test performed Waterproofness 10 0 Tested to Category X no test performed Fluids Susceptibility 11 0 Equipment identified as Cate...

Page 11: ...Operational to Para 7 2 1 Crash safety to Para 7 3 1 impulse Vibration 8 0 Tested to Category M N Explosion 9 0 Equipment identified as Category X no test performed Waterproofness 10 0 Tested to Category X no test performed Fluids Susceptibility 11 0 Equipment identified as Category X no test performed Sand and Dust 12 0 Equipment identified as Category X no test performed Fungus 13 0 Equipment id...

Page 12: ...ed to Category U Curve G Explosion 9 0 Equipment identified as Category X no test performed Waterproofness 10 0 Tested to Category X no test performed Fluids Susceptibility 11 0 Equipment identified as Category X no test performed Sand and Dust 12 0 Equipment identified as Category X no test performed Fungus 13 0 Equipment identified as Category X no test performed Salt Spray 14 0 Equipment identi...

Page 13: ...for convection cool ing The SA 3NVG must be mounted in the right most slot of the SRU 5 01 PN 305018 01and secured with two screws supplied with the unit Section 3 Installation Procedures 3 1 General Each MARC70 module is supplied with a mating connector crimp style pins and an indenti fication tag The identification tag is to be placed on the top of the enclosure directly over the slot in which t...

Page 14: ...Page 11 3 2 1 SRU 1 Outline Dimensions Figure 3 1 SRU 1 Outline Dimensions ...

Page 15: ...uctions The SRU 5 is attached to an aircraft structure by using four 10 32 screws as shown in the outline drawing 3 2 2 1 SRU 5 SRU 5 01 Outline Dimensions Top View Front View Side View Figure 3 2 SRU 5 SRU 5 01 Outline Dimensions Page 12 ...

Page 16: ...structions The SRU 10 is attached to an aircraft structure by using four 10 32 screws as shown in the outline drawing 3 2 3 1 SRU 10 Outline Dimensions Page 13 Top View Front View Side View Figure 3 3 SRU 10 Outline Dimensions ...

Page 17: ...ding consistent drive polarity and simplifying press to test wiring of panel annunciators Pin 36 on the SA 15 is the keying pin and has been removed at the factory A plug which is supplied with the installation kit must be inserted into Pin 36 of the mating connector See figure 3 5 for a schematic and pinout of the SA 15 Page 14 305147 00 3 3 2 SA 3 NVG Regulator Dimming Module The SA 3NVG Regulat...

Page 18: ...28 VDC Coil current is 120 mA See figure 3 8 for a schematic and pinout of the SR 54 The SR 64 provides 24 poles of switching through six hermetically sealed bifurcated relays The relays contacts are gold plated and have a 2 amp resistive load rating at 28 VDC Coil current is 120 mA K1 K2 K3 and K4 are switched simultaneoulsy through coil pins 71 and 72 K5 and K6 are independently switched through...

Page 19: ...ened silver alloy with a 2 amp resistive load capacity at 28Vdc Each of the 6 relays are switched independently or can be switched in any combination by supplying common switching logic to their respective coils Pin 39 on the SR 623 is the keying pin and has been removed at the factory A plug which is supplied with the installation kit must be inserted into Pin 39 of the mating connector Page 16 T...

Page 20: ...Figure 3 4 SA 3 SA 3L Schematic and Pinout Page 17 ...

Page 21: ...Figure 3 5 SA 3 NVG Schematic and Pinout Page 18 ...

Page 22: ...305147 00 Figure 3 6 SA 15 Invertor Module Rev A Page 19 ...

Page 23: ...Figure 3 7 SA 24 Diode Isolation Test Module Page 20 ...

Page 24: ...Page 21 Figure 3 8 SR 34 12 Pole and SR 64 24 Pole Switching Modules Note K1 K2 and K4 not populated on SR 34 305147 00 ...

Page 25: ...Page 22 Figure 3 9 SR 54 20 Pole Switching Module ...

Page 26: ...305147 00 Figure 3 10 SR 263 12 Pole Switching Module Rev A1 Page 23 JPEG Image 2672x3129 pixels Scaled 37 https mail google com mail ui 2 ik f3aa80e6ac view att th 132e ...

Page 27: ...Figure 3 11 SR 343 12 Pole Switching Module Page 24 ...

Page 28: ...305147 00 Figure 3 12 SR 623 12 Switching Module Page 25 ...

Page 29: ... 3 SA3 3L 3 With the annunciator dimming switch in the bright position adjust R9 to the desired brightness 4 Place the annunciator dimming switch in the dim or low position and adjust R8 to the desired brightness 5 Press the annunciator test button and ensure that all annunciators illuminate to their maximum adjusted brightness R8 Dim Adujust R9 Bright Adjust Figure 3 13 SA 3 SA 3LAdjustment Locat...

Page 30: ...he Day Bright bright position set the DAY adjustment to the desired brightness 4 Place the annunciator dimming switch in the Night dim and set the NIGHT to the desired brightness 5 Place the annunciator dinning switch in the NVG and set the NVG adjustment to the desired NVG setting 6 Press the annunciator test button and ensure that all annunciators illuminate to their maximum adjusted brightness ...

Page 31: ...Page 28 3 5 Continued Airworthiness Maintenance of all MARC70 products contained in this manual is on condition only No scheduled maintenance is required ...

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