Technical Documents - 50 Series
Contents
1. Serious damage can be caused to the TAC contacts if they are not protected when the system is disengaged It is recommended that either the ID or Receiver Protective Cover is engaged to the Receiver at all times 2 0 TAC Contact Cleaning Procedures TAC Contacts may require periodic cleaning during the life of the product due to the usage cycle imposed as well as the environmental conditions to which it is subjected If unacceptable resistance readings occur the contacts should be cleaned using the following procedure e Spray contacts with filtered air or inert gas to remove any loose particle contamination e Clean contact mating surfaces using isopropyl alcohol and a soft bristle brush Do not pour alcohol directly onto contacts apply to brush e Respray contacts with filtered air or inert gas to dry alcohol and remove any residual lint dust etc By following this procedure for both the TAC contacts and the mating surface contacts or PCB pads the user will avoid any performance problems that could arise due to contamination 10 P N VMMIT100 MIT USER S MANUAL Ver 2 0 Contact Assembly Instructions Section 4 Signal Terminal AssemblyP N 610 127 110 Set up crimp tool P N 910 101 103 Fig A by loosening the latch locking screw counter clockwise until turning stops Remove any previously used crimp contact locator Insert the open end of crimp contact locator P N 910 104 133 into crimp tool contact locat2. Downloadable Documents Adobe Acrobat TM format Click on the links below to view or download copies of VPC User Manual in Adobe Acrobat PDF format Note If you would like printed copies of any of these documents please send a message with your name address and daytime telephone number to Requests Section 1 Module amp Contact I nstallation Removal I nstructions Ear 1 0 Receiver TAC Contact I nsertion Extraction Ear 2 0 TAC Receiver Module I nstallation Removal Pe PDF 3 0 Wiring Contact I nsertion Extraction Ear 4 0 Receiver Wiring Module I nstallation Removal Exar 5 0 ID Wiring Module I nstallation Removal Ear 6 0 Blank Module I nstallation Removal Exar 7 0 Exploded View of MITT Interface System Components Section 3 Care amp Maintenance System Precautions amp TAC Contact Cleaning Section 2 Se PDF Engagement of ID with Receiver Section 4 Contact Assembly I nstructions VPC P Ns Description Type SE PDF 610127110 Signal Wiring Contact RCVR 1D Crimp Solder 20 AWG max Se PDF 610134101 Coaxial Wiring Contact RCVR ID Solder Sleeve RG316 Er 610134101 Coaxial Wiring Contact RCVR ID Solder Sleeve RG178 Section 5 PWB Assembly Recommendations Ear 1 0 Assembly of PWB to Receiver or ID Ear 2 0 Pad Recommendations for PWB Development Note Please be advised that all drawings within each section are not to scale Ver 2 0 MIT USER S MANUAL Modu
3. Class 2 000150 Min thick Board material is left to the user as the material used will depend upon vari ables such as anticipated environmental SIGNAL COAXIAL 50 OHM 110 1 pe 060 DIA PAD DIA conditions temperature humidity THRU HOLE ede chemical resistance etc and electrical ee eeu E parameters voltage breakdown dielec ii tric constant and others Specific circuitry may also limit the desired flex ing VPC supplies the force per contact POWER COAXIAL 75 OMM exerted upon the board and the contact 270 array dimensions Once the operational p 1909 190 contact array Is determined we recom paras weed mend that the complete environmental OPT HRU HOLE a0 BMA pees electrical and mechanical requirements be given to a professional board de signer for design review Contact Forces Signal TAC Contact Coaxial TAC Contact 50 OHM Coaxial TAC Contact 75 OHM 7 ounces maximum Power TAC Contact 20 ounces maximum Deflection at no time should exceed 020 16 P N VMMIT100
4. ID upon being inspected is now ready for engagement with the Receiver The Receiver should be checked one last time for any foreign objects that may hinder the engagement To attach the ID to the Receiver place ID over captive fittings applying pressure to the ID towards the front of the Receiver and slide down until the top of the ID is flush with the top of the Re ceiver The handle may then be rotated to the closed position e Always protect the contacts when the system is not in use The contacts are protected when either the ID or the Receiver Protective Cover is engaged to the Receiver Upon complet ing use of ID rotate the receiver handle to the open position remove the ID reinstall the protect ive cover and rotate the handle to the closed position e It is recommended that all module positions of the MIT are filled with configured modules This will prevent any uneven engagement of the MIT Receiver mechanism Virginia Panel Corporation MIT USER S MANUAL Ver 2 0 Care and Maintenance Section 3 1 0 System Precautions In the event of complications such as improper alignment of Modules or the ID a trained tech nician should be notified immediately to avoid any damage to the system This should also apply to any difficulties that my be experienced during the engagement The MIT is designed to be maintenance free However there are a few precautions to take in order to prolong the life of the system Caution
5. PWB to the back side of the MIT a PWB that covers both TAC Module positions a PWB for either left or right TAC Module position or two PWBs one for left TAC Module position and one for the right TAC Module position The mounting holes for the PWBs are indicated below Caution needs to be taken when mounting the MIT to another surface while using a PWB The mount ing holes that are used for attaching the PWB s also need to be used to attach the Receiver to a chassis or mounting arms Use spacers if only half of the Receiver s back side is occupied by a PWB so that the Receiver will mount to a flat surface properly 220 je Js COUE 2 HOO 460 othe ate When mounting a Backplane or ce PWB thicker than 1 8 the flat pS ness of the Backplane or PWB needs to be less than 010 4 070 Saya 2 200 P De 4 FS 600 A ae poy yy TP Ls FSD 1 12 40UNC 2B X 20 DP EYP 6 REGS i eee C 2B THRU TO 187 DIA HOLE Tier 2 PES O86 S6UNC 2B xX 20 DP _ TYP 4 PLCS Virginia Panel Corporation MIT USER S MANUAL Ver 2 0 PWB Assembly Pad Recommendations Section 5 2 0 Pad Recommendations for PWB Development All contact pads are to be gold plated per MIL G 45204 Type 1 Grade C 000120 Min thick over Nickel plating per QQ N 290
6. pos Signal Module 510 131 139 220 24 pos Signal Coaxial Module 510 131 144 46 pos Power or Coaxial Module 510 131 145 180 10 pos Signal Coaxial 75 OHM Module To install Module into ID place module in the ID with the screening facing downward Align top of the module with the designated top of the ID and the locating pins on the module with the appropriate holes in the ID The modules should be installed such that the numbers can be read from top to bot tom Insert the 2 Socket Head Cap Screws 50 length in the module fastening holes Using a 5 64 Allen Hex Wrench tighten the top screw 1 to 2 full revolutions while pushing lightly against the face of the module Maintain this pressure while tightening the bottom screw 1 to 2 full revolutions Repeat this sequence until the module is seated Torque the screw until it is 4 to 5 inch pounds SCREENED SIDE OF MODULE To remove loosen the screws until the module is separated from the ID 6 0 Blank Module Receiver ID Installation Removal P N 510 130 123 510 131 113 The Blank Module is used in the Receiver or ID when module spaces are not in use Place the Blank Module in the respective Receiver ID Insert 2 Screws in the module fastening holes and tighten To remove loosen the screws until the module is separated from the Receiver ID Virginia Panel Corporation MIT USER S MANUAL Ver 2 0 M
7. d no loose 7 a ajea ore h strands are extending out across the exposed dielectric or Braid folded back cable jacket 6 Smooth the braid ends flat against the cable jacket Fig A 7 Slip the contact over the end of the prepared cable and carefully push the contact onto the cable until it stops Rotating the contact slightly during cable insertion will help prevent the braid from catching ie 8 Inspect for proper insertion Fig C The center conductor N must be visible through one of the forward inspection windows The distance from the rear of the contact outer body to the 1 15 015 cable jacket insulation should be 015 015 Fig B 9 Install the adapter onto the holding fixture Fig D Insert a contact in the adapter and set up the dimensions as shown in Figure D 10 Insert the contact cable assembly into the adapter Clamp eS sH the cable in the holding fixture The cable must remain fully inserted in the contact and the contact must be fully inserted Q in the adapter for the adapter to act as a heat sink The cab must be straight between the contact and the cable clamp tans 11 Attach the appropriate reflector to the heating tool see separate Tue eek Heat Gun instruction sheet included with tool for tool operation Fig C and precaution 12 Using the holding fixture position the contact in the heating tool reflector with the forward inspection window centered in the reflector Continue heating until the small solde
8. da 130 162 510 130 174 510 130 181 insert the ID WIRING IN contacts in from the screened side of the module MODULE SHOWN When installing Wiring Contacts in the ID Wiring Module P N 510 131 138 510 131 139 510 131 144 510 131 145 insert the contacts from the screened side of the module as well To remove the Wiring Contacts place the appropriate Extraction Tool Signal P N 910 110 110 Coaxial Power P N 910 112 112 Coaxial 75 OHM 910 112 116 over the contact into the counter bore on the mating side of the Extraction module Press into the contact until the retaining ring is released and contact begins to emerge from ID WIRING LLtY MODULE SHOWN the rear of the module Remove the contact by hand CAUTION TWIST POWER COAXIAL AND SIGNAL EXTRACTION TOOLS SLIGHTLY TO ENSURE THAT RETAINING CLIP EARS HAVE FULLY COLLAPSED BEFORE APPLYING PRESSURE TO HANDLE TO AVOID DAMAGE TO CONTACTS ALWAYS ENSURE THAT TOOL IS PERPENDICULAR TO MODULE FACE 910110110 910112112 Virginia Panel Corporation MIT USER S MANUAL Ver 2 0 Module amp Contact Insertion Extraction Section 1 4 0 Receiver Wiring Module Installation Removal P N 510 130 161 380 pos Signal Module 510 130 162 220 24 pos Signal Coaxial Module 510 130 174 46 pos Power or Coaxial Module 510 130 181 180 10 pos Signal Coaxial 75 OHM Module Place
9. dule Installation Removal P N 510 130 117 380 pos Signal Module 510 130 121 220 24 pos Signal Coaxial Module 510 130 173 46 pos Coaxial or Power Module 510 130 180 180 10 pos Signal Coaxial 75 OHM Module To install a module into the Receiver place two 2 Socket Head Cap Screws 50 in length in the TAC Receiver Module Place the Module in the front of the Receiver aligning the locating pins on the module with the appropriate holes in the Receiver Frame so that the upper and lower module screws touch the mating holes the Receiver Frame install modules such that the numbers can be read from top to bottom making them right side up Using a 5 64 Allen Hex Wrench tighten the top screw 1 to 2 full revolutions while lightly applying pressure against the face of the module Maintain this pressure while tightening the bottom screw 1 to 2 full revolutions Repeat this sequence in order until the module is seated As the module is being seated watch to ensure that it does not become cocked at any time as a result of the guide pins not being properly aligned with the receiver or binding of the pins due to one screw being advanced ahead of the other more than 1 to 2 turns If this should occur back the screws off until the module Is level and repeat the tightening process Torque the screw until it is 4 to 5 inch pounds Place the Protective Module Cover on the front of the Receiver with the counter sunk holes facing upward and verify ali
10. e the contact and cable from the holding fixture 14 Inspect the completed termination for correct assembly The cable Q shield must extend into the contact at least as far as the front edge of the rear nspection windows The center conductor must be visible through one of the forward inspection windows Pe PEE Center Conductor Fig C revised 3 13 02 Virginia Panel Corporation 13 MIT USER S MANUAL Ver 2 0 Contact Assembly Instructions Section 4 Coaxial Terminal Assembly P N 610 134 101 RG178 PARTS REQUIRED Solder Kit for TAC includes holding fixture and adapter P N 910 121 162 or Adapter for those who already own a holding fixture P N 910 121 163 Steinel Heat Gun with Reflector P N 910 121 160 INSTRUCTIONS 1 Prepare the coaxial cable to the dimensions shown Fig A 2 Straighten the center conductor making sure the stranded center conductor is twisted into its original lay eed eas aie See 3 Pretin stranded center conductor with Sn63 solder per QQ S 571 Use RMA flux per MIL F 14256 Alpha 611 or equivalent o 4 Fold the center conductor back on itself as shown Fig B 5 Make sure the shield braid is trimmed evenly an
11. gnment of the clearance holes with the contacts in the TAC Receiver Module COVER PLATE TAC RECEIVER MODULE pra ee PKS a o LD PROTECTIVE Ci MODULE COVER aS ae ATTACHES TO B FACE OF RECEIVER e lice cl ee eel a ponese E Jimm 2 o INSERT TAC MODULE SUCH THAT THE RETAINING PLATE FACES BACK OF RECEIVER SCREENED SIDE UP Using the 2 Flat Head Phillips screws secure the cap in place until screws are firmly seated Prior to Module removal the Protective Module Cover must be removed To remove unfasten the two 2 Flat Head Phillips screws and remove the cover 5 s pt ericae tE eeN N pe A i l cee TAC Module P N 510 130 121 shown in place screened side up Protective Module Cover has not been secured to the face of the Receiver P N VMMIT100 Ver 2 0 MIT USER S MANUAL Module amp Contact Insertion Extraction Section 1 3 Q__ Wiring Contact Insertion Extraction P N 610 127 110 Signal Crimp Solder Contact 610 127 111 Signal Wire Wrap Contact 610 134 101 102 103 104 105 Coaxial Contacts 610 136 101 102 Power Contacts To insert Contact into Module first terminate contact by crimping soldering wire wrapping see termination instructions in Section 4 or using SMB SSMB connectors Insert terminal into module until top of contact is flush with module When installing Wiring Contacts in the Insertion Receiver Wiring Module P N 510 130 161 510 an
12. hould be 065 015 8 Install the adapter onto the holding fixture Fig C Insert a contact bias sie in the adapter and set up the dimensions as shown in Figure C E 9 Insert the contact cable assembly into the adapter Clamp the ay cable in the holding fixture The cable must remain fully inserted in the contact and the contact must be fully inserted in the adapter for the adapter to act as a heat sink The cable must be straight between the Ae contact and the cable clamp Fig B 10 Attach the appropriate reflector to the heating tool see separate Heat Gun instruction sheet included with tool for tool operation and precaution 11 Using the holding fixture position the contact in the heating tool reflector with the forward inspection window centered in the reflector Continue heating until the small solder preform in the forward inspection window has melted and flowed The large solder preform in the rear inspection window should have melted and flowed by this time if it has not direct hot air at the rear inspection window until it does 12 If contact is UNDERHEATED there will be visible remnants of the 0 5 0 7 inch original shapes of the solder preforms An underheated contact mus E _ be reheated If contact is OVERHEATED solder will wick away frorr tp the joint areas leaving no solder fillets An overheated contact must be removed and a new contact installed 13 After the contact has cooled for at least 10 seconds remov
13. le Never attempt to disassemble tool Never tighten or loosen stop nuts on back of tool 12 P N VMMIT100 Ver 2 0 MIT USER S MANUAL Contact Assembly Instructions Section 4 Coaxial Terminal Assembly P N 610 134 101 RG316 PARTS REQUIRED Solder Kit for TAC includes holding fixture and adapter P N 910 121 162 or Adapter for those who already own a holding fixture P N 910 121 163 Steinel Heat Gun with Reflector P N 910 121 160 INSTRUCTIONS 170 015 at 190 015 1 Prepare the coaxial cable to the dimensions shown Fig A 7 eee 2 Straighten the center conductor making sure the stranded center conductor is twisted into its original lay 3 Pretin stranded center conductor with Sn63 solder per QQ S 571 Use RMA flux per MIL F 14256 Alpha 611 or equivaler 4 Make sure the shield braid is trimmed evenly and no loose strands are extending out across the exposed dielectric or cable jack 5 Smooth the braid ends flat against the cable dielectric Fig A 6 Slip the contact over the end of the prepared cable and carefully push the contact onto the cable until it stops Rotating the contact slightly during cable insertion will help prevent the braid from catching 7 Inspect for proper insertion Fig B The center conductor must be visible through one of the forward inspection windows The distance from the rear of the contact outer body to the cable jacket insulation s
14. le amp Contact Insertion Extraction Section 1 1 0 Receiver Twin Access Contacts TAC Insertion Extraction P N 610 122 101 Signal S TAC 610 133 101 Coaxial C TAC 50 OHM 610 133 102 C TAC 75 OHM 610 135 101 Power P TAC To insert Contact into Module remove the contact retaining plate from the bottom of the module by unfastening the 2 Flat Head Phillips Screws Insert contacts Into the rear of the module with the stop ring of the contact facing the back of the module The contacts will automatically drop into alignment Replace the contact retaining plate and us secure with two 2 Flat Head Phillips Screws The contact retaining plate must be removed prior to the extraction of the contacts To remove the contact retaining plate unfasten the 2 Flat Head Phillips Screws and remove the contact retaining by plate The contacts are then easily extracted hand Insert TAC s longer end from stop ring into module first Once populated refasten the Retaining Plate onto the TAC Module Virginia Panel Corporation for the insertion of TAC Contacts 5101530121 RECEIVER TAC MODULE STOP RING OF PIN ALWAYS TOWARD RETAINING PLATE 610153101 610135101 610122101 Q CONTACT RETAINING PLATE COMPLETED TAC MODULE T MIT USER S MANUAL IAA Module amp Contact Insertion Extraction Section 1 2 0 TAC Receiver Mo
15. odule amp Contact Insertion Extraction Section 1 7 0 Exploded View of MIT Interface System Components TAC MODULE P N 510 130 117 510 130 121 SHOWN 510 130 173 510 130 180 DESCRIPTION 380 POS SIGNAL RECEIVER 220 24 POS SIG PWR OR CX P N 310 117 128 310 117 120 46 POS PWR OR CX 180 1Q POS SIG CX 75 OHM Se 417 129 310 117 121 310 117 122 P N 510 130 161 510 130 162 510 130 174 510 130 181 DESCRIPTION MICRO INTERFACE TECHNOLOGY MIT RECEIVER 2 MODULE POSITIONS MICRO INTERFACE TECHNOLOGY MIT RECEIVER 4 MODULE POSITIONS RECEIVER WIRING MODULES DESCRIPTION 380 POS SIGNAL 220 24 POS SIG PWR OR CX SHOWN 46 POS PWR OR CX 180 10 POS SIG CX 75 OHM ID WIRING MODULES P N DESCRIPTION 510 131138 380 POS SIGNAL 510 131139 220 24 POS SIG PWR OR CX SHOWN 510 131 144 46 POS PWR OR CX Da TACERE ON ACE DEVICE ID 510 131 145 180 10 POS SIG CX 75 OHM DESCRIPTION ii 115113 MICRO INTERFACE TECHNOLOGY MIT INTERFACE DEVICE ID 2 MODULE POSITIONS 410 115114 MICRO INTERFACE TECHNOLOGY MIT INTERFACE DEVICE ID 4 MODULE POSITIONS P N VMMIT100 Ver 2 0 MIT USER S MANUAL Engagement of ID with Receiver Section 2 Caution When engaging the ID with the Receiver caution must be taken to ensure that the ID is parallel with the Receiver upon engagement and that the Receiver bayonet fittings are engaged simultaneo
16. or retainer Slide the TERE Ao PE LATCH ASSEMBLY retaining latch toward contact locator until rae contact is securely locked into place The contact locator may have to be twisted to allow latch to retain contact locator Tighten latch locking screw CONTACT LOCATOR Using the table below adjust the crimp tool setting by pulling adjusting knob and turning it at the same time clockwise increases Fig A counter clockwise decreases setting until the desired setting is achieved on the microcrimp indicator Wire Gauge Strip Length 05 0 0 Crimp Max Crimp Min Pullout Force Ib O o 24 19 S og o5 S o 24 a w 2 26 20 041 037 4 Using the table above determine the strip length according to wire gauge Strip wire Fully insert stripped wire into contact P N 610 127 110 Fig B With the crimp tool in the open position insert the prepared contact and wire through the indenter opening While keeping the wire fully inserted into the contact squeeze the handles of the crimp tool until a positive stop is reached Tool will release and return into fully open position Remove crimped contact and wire 047 70 is ee E ae 065 Fig B DIA NOTE Observe precision ratchet action by opening and closing tool fully several times Note that tool cannot be opened without completing cyc
17. pos Signal Coaxial 75 OHM Module To install Module into ID place module in the ID with the screening facing downward Align top of the module with the designated top of the ID and the locating pins on the module with the appropriate holes in the ID The modules should be installed such that the numbers can be read from top to bot tom Insert the 2 Socket Head Cap Screws 50 length in the module fastening holes Using a 5 64 Allen Hex Wrench tighten the top screw 1 to 2 full revolutions while pushing lightly against the face of the module Maintain this pressure while tightening the bottom screw 1 to 2 full revolutions Repeat this sequence until the module is seated Torque the screw until it is 4 to 5 inch pounds SCREENED SIDE OF MODULE To remove loosen the screws until the module is separated from the ID 6 0 Blank Module Receiver ID Installation Removal P N 510 130 123 510 131 113 The Blank Module is used in the Receiver or ID when module spaces are not in use Place the Blank Module in the respective Receiver ID Insert 2 Screws in the module fastening holes and tighten To remove loosen the screws until the module is separated from the Receiver ID Virginia Panel Corporation Ver 2 0 MIT USER S MANUAL Module amp Contact Insertion Extraction Section 1 5 0 Interface Device ID Wiring Module Installation Removal P N 510 131 138 380
18. r preform in the forward 0 5 0 7 inch 4 EEIN MES inspection window has melted and flowed The large solder preform B a in the rear inspection window should have melted and flowed by this ie o time if it has not direct hot air at the rear inspection window until it does 13 If contact is UNDERHEATED there will be visible remnants of the B original shapes of the solder preforms An underheated contact must be reheated If contact is OVERHEATED solder will wick away O from the joint areas leaving no solder fillets An overheated contact awl must be removed and a new contact installed 14 After the contact has cooled for at least 10 seconds remove the Pe PEN contact and cable from the holding fixture aa 15 Inspect the completed termination for correct assembly The cable shield J Fig D must extend into the contact at least as far as the front edge of the rear inspection windows The center conductor must be visible through one of the forward inspection windows Center Conductor revised 3 13 02 14 P N VMMIT100 Ver 2 0 MIT USER S MANUAL PWB Assembly Pad Recommendations Section 5 10 Assembly of PWB to Receiver ID There are three options for mounting a
19. the module on the rear of the Receiver aligning the locating pins on the modules with the appro priate holes in the Receiver Frame Install the modules such that the numbers can be read from top to bottom making them right side up Insert the 2 Socket Head S Cap Screws 50 length in the module fastening holes L O Using a 5 64 Allen Hex Wrench tighten the top screw O E 1 to 2 full revolutions while lightly applying pressure A CO against the face of the module Maintain this pressure while tightening the bottom screw 1 to 2 full revolutions Repeat this sequence until the module is seated SCREENED Torque the screw until it is 4 to 5 inch pounds D SIDE OF MODULE To remove loosen the top screw 1 to 2 full revolutions Loosen bottom screw 1 to 2 full revolutions Repeat this L sequence until the module is separated from the Receiver NOTE IT IS IMPORTANT TO ALTERNATE THE i Cm TIGHTENING LOOSENING OF MODULE SCREWS D cm L TT Back side of Receiver with Receiver Wiring Module P N 510 130 162 shown 6 P N VMMIT100 Ver 2 0 MIT USER S MANUAL Module amp Contact Insertion Extraction Section 1 5 0 Interface Device ID Wiring Module Installation Removal P N 510 131 138 380 pos Signal Module 510 131 139 220 24 pos Signal Coaxial Module 510 131 144 46 pos Power or Coaxial Module 510 131 145 180 10
20. usly All power supplies for the system should be properly disconnected prior to handling Caution should always be used during engagement making sure that all foreign objects are removed from the system Serious damage can be caused to the TAC contacts if they are not protected when the system is disengaged It is recommended that either the ID or Receiver Protective Cover is engaged to the Receiver at all times Listed below are the required steps to be taken prior to the engagement of the ID and Receiver e Prior to engaging an ID with the Receiver for the first time the user may find it to be good practice to check that all the Modules ID and Receiver have been installed prop erly This would involve the inspection of the module ends ensuring the even height of all module ends relative to one another While checking this the user should verify the positioning of the modules themselves The top of each module is marked with a T It is crucial for all modules to be installed properly e Improper installation will cause damage to the Modules and possibly to the ID and or Receiver All ID Modules have to match the Receiver Modules This means that upon engage ment an ID Module will mate with its respective Receiver Module Signal ID to mate with Signal Receiver etc e The handle may now be rotated to the open position Remove the Receiver s Protective Cover by sliding it up and pulling it away from the Receiver e The
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