MAXI-D Series Connectors for Astronaut Operations In the frame of Space Station Alpha program, SOURIAU has developed and qualified a series of Astronaut operable high reliability rectangular connectors which are suitable for both IVA & EVA activities. This hardware is used on the COF (Colombus Orbital Facility) module which is part of the European contribution to the Space Station. These connectors feature : * Low Insertion Force contacts * High density of contacts (72 # 22) * Scoop proof design * High durability (5000 mating/demating operations) * High EMI shielding efficiency * Associated dismountable EMI backshells * Easy inspection, maintenance or repair after wiring. Characteristics Materials and finishes Components Material Finish Shells & backshells Inserts - Insulator - Wire guide Contacts Contact retaining clip Locking device - Mechanical parts - Springs Aluminium alloy Nickel plating : electroless & flashing Duroplastic Silicone See L.I.F. contacts Copper alloy See L.I.F. contacts - Aluminium alloy Stainless steel or Berylium copper Electroless Electrolytic Nickel plated - Maximum ratings Maximum ratings min Max. N Characteristics Symbol Unit 1 Working voltage (sea level) Ur --- 200 Vrms 2 Rating current Ir --- 5 A 3 Operating temperature range Mating/Demating in mated status Top -55 +15 +150 +40 C C 4 Storage temperature range Tstg -65 +150 C 5 Soldering temperature Tsol --- +260 C 6 Connector life --- --- > 500 cycles (1) (1) 1 cycle = 1 mating/demating over 10 years Electrical characteristics N Characteristics Symbol 1 Insulation resistance Ri 2 Voltage proof - Leakage current IL 3 Mated shell conductivity (1) R 4 Contact resistance Rc Test method Test condition ESA/SCC 3401 para. 9.1.1.1 para. 9.1.1.1 ESA/SCC 3401 800 Vrms para. 9.1.1.2 ESA/SCC 3401 para. 9.1.1.4 para. 9.1.1.4 ESA/SCC 3401 para. 9.1.1.3 para. 9.1.1.3 (1) From grounding screw of the backshell to the receptacle flange. (These measurements have been performed at : Tamb = + 22 3C). 108 Limits Unit min Max. 10 000 --- M --- 2 mA --- 7 m --- 6 m MAXI-D Series Connectors for Astronaut Operations Part Number / Ordering information 8976 Family identification code R M 072 Type of component R : receptacle P : plug Size of connector L : large M : medium S : small Layout Contacts C : short spills -- : crimp contacts Contact type P : pin S : socket Coding system (see examples below) NO = no coding system Different types of coding, according to the sizes of connectors, are available on request Coding system (for medium size) Polarization code Main coding position A A1 A2 A3 A4 A5 A6 A7 A8 Polarization code x x x x x x x x 1 2 3 4 5 6 7 8 x x x x x x x x Main coding position A B1 B2 B3 B4 B5 B6 B7 B8 B Secondary coding position Secondary coding position B 1 x x x x x x x x x 2 3 4 5 6 7 8 x x x x x x x 109 C S xx MAXI-D Series Connectors for Astronaut Operations Range of component / Type of variants Component Max Mass (g) Max Mating force (N) Max Demating force (N) Type Medium Large Medium Large Medium Large Plug for crimp male contacts 60 90 50 100 45 90 Receptacle for crimp female contacts (*) 60 90 50 100 45 90 (*) Available with spill female contacts Component Max Mass (g) Type Medium Large Backshell, straight outlet 45 64 Backshell, 45 outlet 49 70 Crimping, insertion & removal tools Contact size Contact part number # 22 Pin Socket # 20 Pin Socket # 16 Pin Socket # 12 Pin Socket # 12 coax Inner pin Inner socket Crimping sleeve Crimping tools Positioner Insertion and removal plastic tools M22520/2-01 8976-700 M22520/2-07 M81969/14-01 M81969/14-10 M22520/1-01 M22520/1-04 M22520/5-01 8976-720 8976-710 8976-730 Dimensions (in mm) Plug (for medium size) A B -0 18 -0,11 -0 52,5 -0,11 14,5 -0,11 17 -0,1 G H J L 0 16 -0,11 -0 2,16 +0 68 -0,51 F -0 27,35 -0,11 52-0,11 C -0 D E -0 +0,05 -0 55,5 maxi 110 M81969/14-03 M81969/14-04 MAXI-D Series Connectors for Astronaut Operations Receptacle for spill contacts (for medium size) A +0,5 B C -0 D E 67,99+0 20 -0,11 -0 55,5 -0,11 18 -0,11 -0 52 -0,11 F G H J K 16 -0,11 -0 20,5-0,11 3 -0,11 -0 28-0,11 -0 8,2+0 L OM N OR -0 0,49 -0,05 62 3,1 0 +0,02 4 -0,11 -0 +0,9 +0,2 For crimp contacts : same dimensions without K, L & O M. Backshell (for medium size) A B* G 55 -0,11 -0 18 -0,11 -0 52 -0,21 Fa Fb J +0,75 56,9 -0,75 +1 74,5 -1 K -0 +0,5 48,04 2+10 +0 227 mm Layouts (from 8976) See page 87 111 MAXI-D Series Connectors for Astronaut Operations External dimensions for medium connector front & Rear mounting Panel cut-out for receptacle E F OG 31 62 3,20 +0,10 +0 r1 J -0 52,30 +0 = 0,10 / x 0,10 / x / y -0 AD +1,50 104 -1,50 BB +0,70 94,80 -0,70 AB +0,75 77,85 -0,75 BC +1,10 AC +1,15 45 outlet +0,20 18,30 +0 Rear mounting Straight outlet BD BA +1,50 -0 103,4 -1,10 86,45 -1,15 Z Max AD -0 6,5 101 -1,50 17-0,10 K +0,20 55,80 +0 Receptacle rear mounting Straight outlet BA M +0,20 16,30 +0 Front mounting Receptacle front mounting 40,5 -0,31 H +0,20 3-0,50 121 -1,50 37,5 -0,20 +1,50 112 BB +0,65 91,85 -0,65 AB +0,70 74,90 -0,70 BC AC +1,05 +1,10 100,45 -1,05 83,50 -1,10 Z Max -0 6,5 17-0,10 45 outlet BD +1,50 118 -1,50