MARC70 Installation Manual
Contents
1. 23 SR 343 Schematic and 24 SR 623 Schematic and 25 SA3 SA3L Adjustment 26 SA 3NVG Adjustment Locations 26 Page 3 Section 1 General Description 1 1 Introduction This manual describes the installation of the SANDIA aerospace MARC70 line of interface mod ules It is intended for use by FAA certified repair stations to install the MARC70 modules It includes both the mechanical and electrical installation information for all MARC70 components including the individual modules and enclosures Where applicable alignment and checkout proce dures are included In many instances such as with switching relays the checkout procedure will be performed as part of the major system installation check out and no specific check out procedure is provided for in this manual In any case the installer should insure that all functions are operating according to their intended purpose in their particular installation 1 1 1 Interface Modules All interface modules have the same mechanical dimensions and are inserted into the card enclosures in the same manner An identification tag accompanies each interface module which should be at tached to the card enclosure directly above the interface module to identify it Each interface module connectors except the SR2. 12 3 2 3 SRU 10 Mounting InstructionS 12 3 2 3 1 SRU 10 Outline Dimensions 12 3 3 Interconnect Wiring se uuu ERREUR UA P ee pl det Was Rs 14 3 3 1 SA 3 SA3L Regulator Dimming 14 3 3 2 SA3NVG Regulator Dimming 14 3 33 6 15 Inverter Module 14 3 34 SA 24 Diode Isolation Test 15 3 3 5 SR 34 12 Pole Switching 15 3 3 6 SR 54 20 Pole Switching 15 3 3 7 SR 64 24 Pole Switching 15 3 3 8 SR263 12 Pole Switching 16 3 3 9 SR 343 12 Pole Switching 16 3 3 10 SR 623 12 Pole Switching 16 SA 3 Schematic and 17 SA 3NVG Schematic and 18 SA 15 Schematic and Pinout 18 SA 24 Schematic and 19 SR 34 amp SR 64 Schematic and
3. HICH 15 K3 KEY 1 AY L4 i Figure 3 11 SR 343 12 Pole Switching Module Page 24 SANDIA aerospace t ks a KEY 1 K1 A WIPEI 305147 00 1 K1 ENERCIZE HICH K1 ENERGIZE RET K2 A WIPE K2 B WIPEI K2 ENERGIZE HIGH ENERGIZE RET K3 A WIPE K3 3 WIPE K3 ENERGIZE HICH K4 A WIP E K4 8 WIPE K3 ENERGIZE RET Figure 3 12 K4 ENERCIZE HICH 44 K4 ENERGIZE RET SR 623 12 Switching Module Page 25 K5 ENERGIZE HICH 4 K5 ENERGIZE 4NI E 6 8 K6 ENERGIZE HICH 4 K6 ENERGIZE RET 3 4 Calibration Procedures 3 4 1 SA3 1 With the SA 3 SA3 3L removed from the enclosure connect the mating connector 2 Apply power to the SA 3 SA3 3L by activating the system which is being annunciated by the SA 3 SA3 3L du With the annunciator dimming switch in the bright position adjust R9 to the desired brightness 4 Place the annunciator dimming switch in the dim low position and adjust R8 to the desired brightness 5 Press annunciator test button and ensure that all annunciators illuminate to their maximum adjusted brightness R8 Dim
4. 4 13 verd See send nia e Ea end Died 4 sess a dates Sua rca on ULL 5 5 A 5 1 2 Technical Characteristics 5 1 2 1 Physical 5 1 2 2 Operational Characteristics 6 1 2 3 Cert Cations io ode A 6 Environmental Qualification Form SA3 SA15 SA24 SR263 SR343 SR623 7 Environmental Qualification Form SR34 SR54 SR64 8 Envrionmental Qualification Form 5 9 Section 2 10 2 1 Introduction ee Rar USA de UU t p doe kaq as 10 2 2 Mounting 1 10 23 Cool EET 10 Section 3 Installation Procedures 10 3 General seie eaae a eae a kuykuna a 10 3 2 Mounting Instructions 10 3 21 SRUIOutlneDimensions lees I 11 3 22 SRUS Mounting 12 3 2 2 1 SRU 5 Outline Dimensions
5. WI 7 14 Tic T gt WIJ EX OY 94 Z Tp ON sa IN 9 Eset IN SH wora 6279 12 1 19 02 6 ON 52 14 nume ON Gi ore GS Td 77 T b 28 6 2 2 94 Cu Td BS Io 413 3 cx ors 692 424 51 12 on 3 3N J FA 59 14 BEZIS 24 2 SA 53 naa DN SA 6 32 14 er EX mr sa DS Td UL Ida 2 0 Page 21 Figure 3 8 SR 34 12 Pole and SR 64 24 Pole Switching Modules 305147 00 OND 22 dl 82123NND2 lt S TJ OSLNOD 93 25 14 SOOPNT lidz 91 9 Td D 55 a ON 8 79 93 5 amp v 94 Dr Td MI 9t wao TW 27 Igl IH DLvo 119 T d TO LNOD 83 27 Td DIH G7 14 wor i tH AL 96 SOOPNT rego CODzNI 1047 SOOFNT gt lec dd Seago JN V SJ Sod JN V ED AJ3 8 SX l id on a SA 3N 8 S WOZ 3 Sy 20 5 55 cT Tg 2 9 SA 28 1 SA d 105102 4 7 1d DIH TOYLNOO 4 lt 14 2 9 tA 81 19 S rh T gt SOObN BE SOOPNT Sm SOOPNT SOOPNT 0 82 v3 lt 55 28 9 tA 430 8 lt DN tA 2N 0 P 2 SOOPNT Kiu SOOPNT Dha 2 109 SO
6. SANDIA aerospace MARC70 Installation Manual SA 3 L INVG SA 15 a SR 263 SR 54 SA 24 SRU 1 SR 342 SR 64 SR 623 SRU 10 3700 Osuna Rd NE Suite 711 Albuquerque NM 87109 505 341 2930 www sandia aero 305147 00 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 without prior notice Copyright 2000 SANDIA aerospace Inc All rights reserved Printed in USA Record of Revisions June 25 2000 Initial Release J Fiala 000814 March 29 2001 ECN 3271 J Fiala 010329 ee INN 305147 00 Page 1 Table Of Contents Record of REVisiOns s vr es OR Ede ee ERI A eee 1 Tabl of T 2 Last of Illustrations 42a eee Ree RS e ER a e A DUE ES 3 Section 1 General Description 4 1 1 4 1 1 1 Interface 4 1 1 2 Card Enclos r s 4 ore cad p D RI ER ER eae
7. 20 SR 54 Schematic and 21 SR 263 Schematic and 22 SR 343 Schematic and 23 SR 623 Schematic and 24 Page 2 Table Of Contents con t 3 4 Calibration Procedures 25 ue i ad Sd She WE d 26 9412 ISAS INV O cassia aa AQ 26 3 5 Continued Airworthiness 0 00 ee e 27 List of Illustrations Figure 3 1 Figure 3 2 Figure 3 3 Figure 3 4 Figure 3 5 Figure 3 6 Figure 3 7 Figure 3 8 Figure 3 9 Figure 3 10 Figure 3 11 Figure 3 12 Figure 3 13 Figure 3 14 305147 00 SRU 1 Outline 11 SRU 5 SRU 5 01 Outline Dimensions 12 SRU 10 Outline Dimension 13 SA 3 SA 2L Schematic and 17 SA 3NVG Schematic and 18 SA 15 Schematic and 19 SA 24 Schematic and Pinout 20 SR 34 and SR 64 Schematic and Pinout 21 SR 54 Schematic and 22 SR 263 Schematic and
8. 20 to 455 50 000 Ft C C SR 64 305499 00 20 tod Voltage 28Vdc 28Vdc 28Vdc 70 C 70 000 Ft 70 C 35 000 Ft 70 C 70 000 Ft N N 28V dc 28V dc 28V dc 155 SA 24 305003 01 55 to 70 70 000 Ft SR 54 305498 00 20 to 55 50 000 Ft SR 263 305001 01 55 to SR 343 305000 01 55 to 4 SR 623 305002 01 55 to 4709 C 70 000 Ft 70 C 70 000 Ft 70 C 70 000 Ft 28V dc 28V dc 28V dc SRU 1 305146 00 55 70 C 70 000 Ft SRU 5 305018 00 55 to 70 C 70 000 Ft SRU 5 01 305018 01 55 to 70 C 70 000 Ft SRU 10 305014 0 55 to 70 C 70 000 Ft 50 000 Ft A A N A N A A A N N 1 2 3 Certification Aircraft Embraer EMB120 Cessna Citation 650 tnt Number PMA 305005 01 Yes Yes 3050502 No SA3NVG sats 3050201 Pending Ssmo 3055000 Pen pd SR 54 305498 00 Pending SR 263 305001 01 STO0318DE D STC ST09475SC ST3007WI T Eurocopter BK 117 C2 Embraer EMB120 Learjet 55 Learjet 55 Cessna Citation 650 Embraer EMB 120 Cessna Citation 650 117 C2 SRUs 30501800 Ye seus 305001 3050200 5 5 5 5 SR 64 305499 00 SR 343 305000 01 ST00318DE D SR 623 305002 01 ST3007WI T Ye ST3007WI T Eurocopter BK SA3 PMA d with SRU1 as SAS 1 3 SA 24 PMA d with SRU 1 as SAS 1 24 SANDIA ae
9. 34 SR 54 and SR 64 is keyed to prevent the inadvertent installation of the connector into the wrong module Keying of the module has been accomplished at the factory by the removal of one 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 requirements for helicopter installations See section 1 2 for complete technical specification on each of the MARC70 modules 1 1 2 Card Enclosures Several different card enclosures are available depending on the application and installation space available If an enclosure is not filled the unused card slots are covered with blank panels These extra card slots can be used in future installations or system upgrades eliminating the need to re engineer the mechanical installation Interface modules are secured to the enclosures with captive stainless steel screws In installations where the enclosure is difficult to reach the harness connector can be attached first then the module inserted into the appropriate card slot and secured with the cap tive hold down screws 1 1 3 SRU 1 The SRU 1 is a single card enclosure which accepts any MARC70 interface module The SR
10. annunciators The SA 3NVG will provide 1 amp short term for testing of annunciators Aircraft power is supplied to 7 pins for installation flexibility Three adjustments allow setting the High Low and NVG intensity of the annunciators A ground is applied to Pin 4 of the connnector J1 to put the SA 3NVG in the NVG mode A ground on J1 Pin 3 puts the output in Dim night mode and with both J1 Pins 3 and 4 open the output is in the Bright day mode The SA3NVG must be mounted in the right most slot of to the SRU 5 01 Sandia P N 305018 01 and secured with two 1 2 inch 4 40 screws supplied with the unit The SRU 5 acts as a heat sink and should not be mounted near flamable substances Pin 2 on the SA 3NVGis the keying pin and has been removed at the factory A plug which is supplied with the installation kit must be inserted into Pin 2 of the mating connector 3 3 3 SA 15 Inverter Module The SA 15 module allows equipment with 5Vdc or 28Vdc lamp outputs to drive panel annunciator lamps that require grounded inputs The SA 15 inverts up to 14 high level lamp driver inputs providing independent low outputs for each line The 14 inverters are arranged in two banks of 7 inverters for installation flexibility A single line on each inverter bank allows simultaneous testing of all 7 outputs The inverters may also be cascaded providing consistent drive polarity and simplifying press to test wiring of panel annunciators Pin 36 on the SA 15 is the keyi
11. 1821 0191901 6821 621901 8871 82901 21531 Ze ge 06 6 91 ce 8v vy 9v v oec 01 46 6c vl 8 ie Sv GL Ly S N e th 52 pr AYMA any 42 a any any 9 N 4 VE ZVNI 90 VE ZvNI sa 9 N lo vid T At 9 gt 01 VECLvNI any x SK 1 clu 5 gt n VeCLvNL any x za Ws zio j zi en VEELvNI any x S I uo id e9 gt fi azn VCCLYNL any x WS I Den VECLYNL any ye 1 69 Si is azn ay VECLvNI any I 89 4 84 ur VECLVNI oth 9 I x i 4 lt 1 id ain any VECLYNI 9 I ea ye Yi lt oin any VECLVNI eK 72 z0 Si lt 7 i ain 9 mr 12572271 9 91 6 lt veoozo1n vin Do n 02 9 ev 6 ly vc 9c ve 8l 8 cc Se 62 6l Ov 101 01 07 901 901 101 1821 121901 9871 991907 S821 S9I901 801 01901 871 91901 2821 221901 IONS 1801 191901 1541 Figure 3 6 SA 15 Invertor Module Rev A Page 19 305147 00 2 2 02 6
12. 7 R9 Bright Adjust N m UE Figure 3 13 SA 3 SA 3LAdjustment Locations Page 26 SANDIA aerospac 3 4 3 42 Calibration Procedures con t SA3NVG With the SA 3NVG removed from the enclosure connect the mating connector Apply power to the SA 3NVG by activating the system which is being annunciated by the SA 3NVG With the annunciator dimming switch in the Day Bright bright position set the DAY adjustment to the desired brightness Place the annunciator dimming switch in the Night dim and set the NIGHT to the desired brightness Place the annunciator dinning switch in the NVG and set the NVG adjustment to the desired NVG setting Press the annunciator test button and ensure that all annunciators illuminate to their maximum adjusted brightness Figure 3 14 SA 3NVG Adjustment Locations Page 27 3 5 Continued Airworthiness Maintenance of all MARC70 products contained in this manual is on condition only No scheduled maintenance is required Page 28
13. I 91 NI SL NI vl NI ANN NI L NI ANN NI oO c DO KR 0 Figure 3 7 SA 24 Diode Isolation Test Module aerospace C1 o 210 A US uo poje ndod jou py pu S TY ION H u A WO Eiz cis mo IF gt Ons mt T 8 14 ee TT u a as lt Tm TE T29 qa 50 74 14 2 9 20 8 2 am en i DN 3 c 2N 2 23 Le ic 24 2 ni is SEA gt 102 0 mere EIC Lig waa Kald D h n n ex ALE HOH EX TA y m HODY PH 31 19 13 ON SC Ta 2 10 DN d E oY vX eut Lidl IN 61 14 5 15 ma e OME H Tad ON 28 8 ri loc comua 2 2 3 S idi 15 12 12 2 EA 2 ba eS dl IL gt ON 3 JHI A S Idi 29 2 EX 2 0S c 12 0 OWT a KP l id 0 0 EA 38 0 ba TL d UL ig 2 0 an 1 1 mgt SEB Z iem TT y 1
14. QPNT N V ct lg 58 9 2 gt iu Irs oo aM 1 V IN O Dt lg on c ON 3 Ir o oo Sor Nr V leuc Lidt zur Dko BADAN 1381803 23 4 L9 IQHH 1181 02 25 ISDOENT v 2323 CANeNt arIo ON V c 97 Id a y MIC a iSp l gt on e JN H 2 DN 23 25 i v 2 7 i gt gt 2 22 2 SOOFNT Nam SOOPNT l dt 782 500781 542 v t 19 gt 2 te lo DN Y TA 5 y ld2 3N ND2 8 6 Ta 01 cy lg WD2 Di ly lt 2 19 gt m t a c Id 3N Di gt U 1251402 2 2 2 2 gt S TO 31 _ 2 9 gt UaLNED Di TA TA TA TA TA aerospace Module N N o 210 A Figure 3 9 SR 54 20 Pole Switching N kan Figure 3 10 SR 263 12 Pole Switching Module Rev A1 Page 23 305147 00 I mm p E I m m fh ri T I P j b b b d ID C I Y m
15. R 64 Environmental Qualification Form Page 8 aerospace NOMENCLATURE SA 3 NVG DIMMER W PLATE SRU5 TYPE MODEL PART NO SA 3 306070 XX SRU 5 NVG 305018 XX TSO NUMBER DO160Env Cat CZX BBA SBM UG IXXXXXXZZAZ ZC SS LXXXXX MANUFACTURER S SPECIFICATION AND OR OTHER APPLICABLE SPECIFICATIONS MARC70 INSTALLATION MANUAL 305147 00 ENVIRONMENTAL TEST PLAN 901073 QTP QTP SA 3 NVG DIMMER MANUFACTURER SANDIA AEROSPACE ADDRESS 3700 OSUNA RD NE STE 711 ALBUQUERQUE NM 87109 CONDITION SECTION DESCRIPTION OF TESTS CONDUCTED Temperature and Altitude Equipment tested to category C2 Low Temperature 5 55 C Ground Survival 55 Short 55 Operating High Temperature 5 85 C Ground Survival 709 Short 709 Operating High Temperature In flight Loss of Cooling 5 Not Applicable Altitude 6 35 000 feet Decompression 6 1 operational Shock and Gash Satay 10 Testedto Category Tested to Ce U Curve G Lightning Induced Transient Suscep Tested to Category X no test performed tibility SA3NVG Environmental Qualification Form Page 9 2 1 2 2 2 3 3 1 3 2 Section 2 Installation Introduction The MARC70 family of enclosures and interface modules has been designed to simplify and standardize installation of avionics systems SANDIA aerospace supplies each mounting enclosure and interface module separately The installer can
16. U 1 is ideally suited for installations where only one 70 card is required or where there is limited real estate for mounting the larger enclosures The SRU 1 can be mounted in any axis and either inside or outside the pressure vessel 1 1 4 SRU 5 aerospace Page 4 The SRU 5 is a multi card enclosure that accepts up to five MARC70 interface modules The SRU 5 can be mounted either inside or outside the pressure vessel When less than five interface modules are used with the SRU 5 cover plates are placed over the unused card slots If additional cards are required at a later date the cover plates can be removed and the appropriate interface card installed When installing the SRU 5 ample room should be allowed for both connector clearance and for inserting and removing the interface modules The SRU 5 as well as the interface modules can be mounted in any axis 1 1 5 SRU 10 The SRU 10 is multi card enclosure that accepts up to ten MARC70 interface modules It is ideally suited for installations that will require more than five interface modules As with the SRU 5 un used slots are covered with cover plates included in the installation kit These extra slots can be used on future installations eliminating the need for additional mechanical engineering and approval The SRU 10 can be installed either inside or outside the aircraft s pressure vessel For installation flexibility the SRU 10 and the installed interface modules can be mo
17. ation kit must be inserted into Pin 39 of the mating connector 305147 00 Page 16 IS THE KEYWAY THE BOARD INSERTED INTO THE Figure 3 4 SA 3 SA 3L Schematic and Pinout Page 17 SANDIA aerospace ANOA ANOA ANOA ANOA ANOA ANOA ANOA OS TC TC 6v TC 1 8v TC T TC O TC 9T TC ST T 1 r 9a Lv el NA 90V LEWW D vO u Z x q 02 STY z 90VLEWW z oH NIA T 227 cT E o ef c Sus US c lt Pa 8y eo NIA 089 u NO NO dOdON 2AT 2 ou c SY z 9SV LENW L LX x NIA NO 6 TC 86 18 1 96 SE TC cre 0 6c TC 8 HNOST S KE CEIT33NNODS LON TE 2 Dt LET i 9c it VE TC GND ee it 8 GND S TC 1 T T I I I Oz TC 0 6T TC I I TC LHOIN V TC DAN Figure 3 5 SA 3 NVG Schematic and Pinout 6 NIA 82 SZ TC NIA 8 8 NIA 8C VC TlC NIA 82 LTC NIA 8C NIA 8C 9 82 990906 TLD NIA AA Page 18 801 601 0101 1871 121901 1821 191901 71801 2121501 821 1191501 0
18. e View _ 48 Front View Figure 3 2 SRU 5 amp SRU 5 01 Outline Dimensions 305147 00 Page 12 3 2 3 SRU 10 Mounting Instructions 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 Top View Side View Front View Figure 3 3 SRU 10 Outline Dimensions Page 13 SANDIA aerospace 3 3 Interconnect Wiring 3 3 1 SA3 amp SA 3L Regulator Dimming Modules The SA3 amp 3L Regulator Dimming Modules provide a source of power to drive up to 5 amps of continuous current for aircraft annunciators The SA 3 amp 3L will provide 1 amp short term for testing of annunciators Aircraft power is supplied to 7 pins for installation flexibility Two adjustments allow setting the High and Low intensity of the annunciators to match existing aircraft annunciators Pin 2 on the SA 3 amp 3L 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 2 of the mating connector The SA 3 is for use with incandesent lamps while the SA 3L is for use with LED Lamps See figure 3 4 for a schematic and pinout of the SA 3 amp 3L 3 3 2 SA3 NVG Regulator Dimming Module The SA 3NVG Regulator Dimming Module provide a source of power to drive up to 5 amps of continuous current for aircraft
19. ers are installed adequate space should be allowed for convection cool ing The SA 3NVG must be mounted in the right most slot of the SRU 5 01 PN 305018 Oland secured with two screws supplied with the unit Section 3 Installation Procedures 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 the module is installed The enclosures are supplied with enough blank plates and screws to cover any unused slots Extra blank plates and screws can be discarded or retained in case a module is ever removed Mounting Instructions The SRU 1 is attached to an aircraft structure by using four 10 32 screws as shown in the outline drawing 305147 00 Page 10 3 2 1 SRU 1 Outline Dimensions 8019 4X 2 80 Xe 0 55 0 00 cn 5 Top View 7 4 90 je 0 99 t I 508 F Yl I 3 33 Front View Side View Figure 3 1 SRU 1 Outline Dimensions Page 11 SANDIA aerospace 3 2 2 SRU 5 Mounting Instructions 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 amp SRU 5 01 Outline Dimensions F t Ni Top View Sid
20. formed Electrostatic Discharge Equipment identified as Category X no test performed SA 3 SA 15 SA 24 SR263 SR 343 SR 623 Environmental Qualification Form 305147 00 Page 7 NOMENCLATURE MARC70 RELAY TYPE MODEL PART NO MARC70 SR34 SR54 SR64 TSO NUMBER DO160Env Cat A1D1 CA9MNOXXXXXXZBABATZXXX MANUFACTURER S SPECIFICATION AND OR OTHER APPLICABLE SPECIFICATIONS MARC70 INSTALLATION MANUAL 305147 00 MANUFACTURER SANDIA AEROSPACE ADDRESS 3700 OSUNA RD NE STE 711 ALBUQUERQUE NM 87109 REVISION amp CHANGE NUMBER OF DO 160 REV D DATED JULY 27 1997 CONDITION SECTION DESCRIPTION OF TESTS CONDUCTED Temperature and Altitude Equipment tested to category Al amp D1 Low Temperature 9 Tested to 209 Operating Low Temperature Tested to 559C Ground Survival High Temperature Tested to 70 C Operating High Temperature Tested to 85 C Ground Survival In flight Loss of Cooling Test not Applicable Altitude 6 50 000 feet Decompression 6 50 000 feet Overpressure 4 6 3 15 000 feet Operational Shock and Crash Safety 7 0 Operational to Para 7 2 1 Crash safety to Para 7 3 1 impulse Explosion 90 Equipment identified as Category X no test performed Lightning Induced Transient 22 0 Tested to Category X no test performed Susceptibility Lightning Direct Effects 23 00 Equipment identified as Category X no test performed Equipment identified as Category X no test performed SR 34 SR 54 S
21. l 81 ZL 91 SI vl l cl LL o QN rm 0 0 1no 1no 1no 1no 1no 1no 1no S N 1003 100 100 100 110 110 100 100 100 110 110 100 110 100 100 110 3NIT 3NI1 T 0G Ig 09 341 a 5 ASEOWSE I T w SOT gt in SNVAL 95V HN F gt Sri mum Fas T gt lt x 1 gt c De Sbi ED lt d sabes 1 gt r1 a Bea Fas T lt ET D sen tas qr i Fas E T lt I k lt a 4 RSS 1 gt m 4 aaa FSS 1 IPC x L a gal Fas 1 TIT lt a 2 m vau Fas Qerld i eus 0r 6 19 m E2 lg cR Pi Fas f B gt m Des oro Fes lt 6 4 nates T ZET lt a ai 5 A233 Fas EAD gc sus Fas T gt vg tes 1 En p yas Tes BETS zs tas E L a m H Q V GND 1531 20 8 DOA NI NI 1 ANN oz NI 61 NI 81 NI Zt N
22. mix and match the modules in the enclosures to meet specific requirements Except for the SR 34 SR 54 and SR 64 each of the module s connectors is keyed to prevent inadvertently attaching the wrong connector It is important that the installer insert the supplied plug in the proper location in the mating connector for the keying to be complete Mounting Considerations The MARC70 family of interface modules and their associated mounting enclosures can be mounted in any attitude and either inside or outside the pressure vessel Each card is installed in the desired mounting enclosure by inserting it into a vacant location and secur ing it with the two stainless steel fasteners attached to the modules front plate The interface modules can only be inserted and secured in one direction While the modules are relatively easy to install and remove in the enclosures considerations should be given to service access At least six inches of clearance should be provided at the front of the enclosures for removal and reinsertion of MARC70 modules It is also recommended that enough cable be supplied so that the interface modules can be inserted and removed with the cable harness and connec tor attached to the module This will aid in any calibration that may be required and will also simplify attaching the connector to the interface module Cooling Cooling for the MARC70 is not required However if several higher current modules such as annunciator driv
23. ng 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 305147 00 Page 14 3 3 4 3 3 5 3 3 6 3 3 7 SA 24 Diode Isolation Test Module The SA 24 provides 23 lines of diode isolation The SA 24 also provides a test input for testing annunciators The test input can be either a high or a low Pin 48 on the SA 24 is the keying pin and has been removed at the factory A plug which is supplied with the installa tion kit must be inserted into Pin 48 of the mating connector SR 34 12 Pole Switching Module The SR 34 provides 12 poles of switching through three hermetically sealed bifurcated re lays The relays contacts are gold plated and have a 2 amp resistive load rating at 28 VDC Coil current is 60 mA Both the SR 34 and SR 64 use the same circuit card Each relay is independently switched through their appropriate coil pins See figure 3 7 for a schematic and pinout of the SR 34 SR 54 20 Pole Switching Module The SR 54 provides 20 poles of switching through five hermetically sealed bifurcated re lays The SR 54 has a built in circuit that swithces all relays to their de energized conditon whenever K6 is activated This can be used for such applications as insuring LOC is present ed on the HSI whenever a LOC signal is selected The relays contacts are gold plated and have a 2 am
24. p resistive load rating at 28 VDC Coil current is 120 mA See figure 3 8 for a schematic and pinout of the SR 54 SR 64 24 Pole Switching Module 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 their coil pins See figure 3 7 for a schematic and pinout of the SR 64 CAUTION Since all pins on the SR 34 SR 54 and SR 64 are used for switching func tions there is NO KEYING PIN Cautions must be taken when reattaching the connector to insure that it is going to the correct devise Failure to do so may result in board damage Page 15 SANDIA aerospace 3 3 8 3 3 9 SR 263 12 Pole Switching Module The SR 263 provides 12 poles of switching through two MIL Qualified hermetically sealed and nitrogen filled relays The relays contacts are gold plated hardened silver alloy with a 2 amp resistive load capacity at 28Vdc Coil power is 2 6 watts max at 25 degrees C Each relay can be activated independently by supplying the switching logic to their coil through pins 38 amp 40 for K1 and 43 amp 44 for K2 Or they can be switched as a pair by sup plying the switching logic to pins 39 amp 45 Pin 46 on the SR 263 is the keying pin and has been removed at the facto
25. rospace Page 6 NOMENCLATURE MARC70 RELAY DIODE ISOLATOR INVERTER AND REGULATOR UNIT TYPE MODEL PART NO MARC70 SA3 SA15 SA54 SR263 SR343 SR623 TSO NUMBER DO160Env Cat E1 BBA SBLO9U XXXXXXZZAZZULXXX MANUFACTURER S SPECIFICATION AND OR OTHER APPLICABLE SPECIFICATIONS MARC70 INSTALLATION MANUAL 305147 00 ENVIRONMENTAL TEST PLAN SR343 SR263 SR623 SA24 SA15 SA3 Doc MK700020 MANUFACTURER SANDIA AEROSPACE ADDRESS 3700 OSUNA RD NE STE 711 ALBUQUERQUE NM 87109 REVISION amp CHANGE NUMBER OF DO 160 REV D DATED JULY 27 1997 CONDITION SECTION DESCRIPTION OF TESTS CONDUCTED Temperature and Altitude Equipment tested to category E1 Low Temperature High Temperature Tested to 70 C Operating High Temperature Tested to 85 C Ground Survival In flight Loss of Cooling Test not Applicable Altitude 6 70 000 feet Decompression 6 Test not Applicable Overpressure 4 6 3 Test not Applicable Operational Shock and Crash Safety Tested to Category A Aircraft Type 5 Random Orientation Vibration Tested to Category S Aircraft Zone 2 using vibration curves B and M WENN Tested to Category U Helicopter Zone 2 using vibration curves F and F1 Baulpmen ented as U Lightning Induced Transient 22 0 Tested to Category X no test performed Susceptibility Lightning Direct Effects 23 00 Equipment identified as Category X no test performed Equipment identified as Category X no test per
26. ry A plug which is supplied with the installation kit must be inserted into Pin 46 of the mating connector See figure 3 9 for a schematic and pinout of the SR 263 SR 343 12 Pole Switching Module The SR 343 provides 12 poles of relay switching through 3 MIL Qualified hermetically sealed and nitrogen filled relays The relays contacts are gold plated hardened silver alloy with a 2 amp resistive load capacity at 28Vdc Each of the three relays can be activated in dependently by supplying switching logic to their coils through pins 38 amp 40 for K1 pins 43 amp 44 for K2 and pins 48 amp 49 for K3 They can also be switched as group by suppling the switching logic to pins 39 amp 45 Pin 42 on the SR 343 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 42 of the mating connector See figure 3 10 for a schematic and pinout of the SR 343 3 3 10SR 623 12 Pole Switching Module The SR 623 provides 12 poles of switching through 6 MIL Qualified hermetically sealed and nitrogen filled relays The relays contacts are gold plated hardened 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 install
27. unted 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 installing agency to determine that the aircraft operat ing conditions are within these FAA PMA parameters 1 2 1 Physical Characteristics Unit Part Number Width Height Depth Weight SA3 3050001 392 35in 82in 205 SASL 305005 02 392im 35in 8 205 SASNVG 30607000 392in 35in 8 295 SAIS 30500401 392 35in 8 15 30500301 392in 35in 82in 181b SR34 30550100 392im 35in 8 4195 SRS4 30549800 392im 35in 8 2605 SR 4 30549 00 3 92in 35in 8 251b SR263 3050001 3 92in 35in 82in 41658 SR343 30500001 392i 35in 8 4185 SR62 30500 01 392 35in 8 245 SRUI 30514000 52 l0im 39in 375 1 01 30514001 52 10 39in 575 SRUS 305018 00 54in 40 365in 405 With Module Installed 305147 00 Page 5 1 2 2 Operational Characteristics Operating Temp 305005 01 559to 709 C 70 000 Ft SA3L 305005 02 55 SA 3NVG 306070 00 55 SA 15 305004 01 55 to C SR 34 305501 00
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