101VMEJ103 ELMA | Alldatasheet

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J1, J2, J3 VME BACKPLANE MECHANICAL SPECIFICATIONS BOARD SPECIFICATIONSFEATURES

  • 3U height
  • 3-21 Slots

DESCRIPTION

  • 8-layer board
  • 2 oz. copper power and ground
  • PCB UL recognized 94V-0
  • PCB FR-4 or equivalent
  • PCB .125" thick
  • Exceeds ANSI/VITA 1-1994 and IEEE P1014 specifications
  • 8-layer stripline design
  • Optional BUSGRANT/IACK daisy chain connectors on J1
  • Superior power distribution
  • Virtually zero crosstalk For VME backplanes, we used 8-layer construction, stripline design, decoupling capacitors at every slot, inboard terminators, h eavy power and ground planes, transient analysis simulation programs, and years of experience designing, building, and using backplanes. Although the design could have been done with four layers, we chose to use eight layers so that we could have three layers of ground, two layers of VCC, and three separate signal layers. Three 2 oz. copper ground layers are used to fully shield the backplane to minimize RFI/EMI emissions and crosstalk, and to max imize power distribution. Furthermore, the outer ground layers serve to prevent signals or VCC from being exposed where they could be shorted or damaged. Two 2 oz. copper VCC layers are used to maximize power distribution and to act as virtual ground planes for the signals in orde r to minimize noise and crosstalk. Measured results verify that Bustronic backplanes are among the quietest in the industry. The combination of multiple heavy layers of VCC and ground and the many distributed capacitors allows the Bustronic backplanes to have superior power distribution as verified by measured comparison with our competition. Furthermore, there are conveniently distributed power bugs compatible with simple but effective busbars. For lightly loaded backplanes, power can be inserted through the Friction-Lock (AMP MTA) connectors. All status signals such as ACFAIL, RESET, and SYSFAIL are also available on that same connector. Stripline construction is used exclusively for the highest possible performance. By utilizing stripline construction only, we eliminate a severe source of RFI/EMI radiation and make all signals have similar characteristic impedances and minimum signal skew. This in turn allows significantly higher data transfer rates since signal skew factors four times into the transfer rate calculations.

J1, J2, J3 VME BACKPLANE LINE DRAWING Slots Width (in.) Height (in.) Part # Part # Part # Part # J1 Backplane J2 Backplane J3 Backplane J2 A+C Bussed .288 3.512 .122 4.945 3 2.200 5.067 101VMEJ103 101VMEJ203 101VMEJ303 101SBPJ203 4 3.000 5.067 101VMEJ104 101VMEJ204 101VMEJ303 101SBPJ204 5 3.800 5.067 101VMEJ105 101VMEJ205 101VMEJ305 101SBPJ205 6 4.600 5.067 101VMEJ106 101VMEJ206 101VMEJ306 101SBPJ206 7 5.400 5.067 101VMEJ107 101VMEJ207 101VMEJ307 101SBPJ207 8 6.200 5.067 101VMEJ108 101VMEJ208 101VMEJ308 101SBPJ208 9 7.000 5.067 101VMEJ109 101VMEJ209 101VMEJ309 101SBPJ209 10 7.800 5.067 101VMEJ110 101VMEJ210 101VMEJ310 101SBPJ210 11 8.600 5.067 101VMEJ111 101VMEJ211 101VMEJ311 101SBPJ211 12 9.400 5.067 101VMEJ112 101VMEJ212 101VMEJ312 101SBPJ212 13 10.200 5.067 101VMEJ113 101VMEJ213 101VMEJ313 101SBPJ213 14 11.000 5.067 101VMEJ114 101VMEJ214 101VMEJ314 101SBPJ214 15 11.800 5.067 101VMEJ115 101VMEJ215 101VMEJ315 101SBPJ215 16 12.000 5.067 101VMEJ116 101VMEJ216 101VMEJ316 101SBPJ216 17 13.400 5.067 101VMEJ117 101VMEJ217 101VMEJ317 101SBPJ217 18 14.200 5.067 101VMEJ118 101VMEJ218 101VMEJ318 101SBPJ218 19 15.000 5.067 101VMEJ119 101VMEJ219 101VMEJ319 101SBPJ219 20 15.800 5.067 101VMEJ120 101VMEJ220 101VMEJ320 101SBPJ220 21 16.600 5.067 101VMEJ121 101VMEJ221 101VMEJ321 101SBPJ221

VME J1, J2, J3 BACKPLANES (Example: 101VMEJ121-0590R) COMMON CONFIGURATION EXAMPLES 101 -_ _ _ _ _Configuration Product Form Slots Product VME Form J1 = 3U, J1 J2 = 3U, J2 J3 = 3U, J3 02-21 = Slots Configuration Power Interface 0 = 10 pin power tap with 6/32 screw 1 = M4 threaded stud 2 = 10 pin power taps with busbar kit 8 = Not applicable 9 = Custom (-9XXX sequential Numbers) J0 and J1 Connector Tail Length if Applicable 0 = 13mm first and last slots, 6mm all other slots 1 = 17mm first and last slots, 6mm all other slots 2 = 6mm all slots 3 = 13mm all slots 4 = 17mm all slots 5 = 13mm first and last slots, 6mm ADC all other slots 6 = 160 pin, 17mm VME extension connector, all slots 7 = 96 pin, 6mm earless DIN 8 = 160 pin, 13mm VME extension connector, all slots 9 = Not applicable A = 160 pin, 13mm F & L, 6mm ADC, all other slots B = 160 pin, 17mm F & L, 6mm ADC, all other slots C = 96 pin, 6mm with ADC J2 and J3 Connector Tail Length if Applicable 0 = 96 pin, 13mm all slots 1 = 96 pin, 17mm all slots 2 = 96 pin, 6mm all slots 6 = 160 pin, 17mm VME extension connector, all slots 8 = 160 pin, 13mm VME extension connector, all slots 9 = Not applicable Shrouds 0 = All slots shrouded where applicable 1 = No slots shrouded 2 = All J2 slots shrouded 5 = J2, first and last slots 6 = Locking shrouds where applicable 7 = Locking shrouds J2 only RoHS Compliance R = RoHS compliant -0000 -0500 -0590 -0900 -0000R -0500R -0590R -0900R

J1, J2, J3 VME BACKPLANE DESIGN ELEMENTS Power Distribution The versatile power distribution consists of power bugs at every other slot, an optional busbar may be installed directly across the power bugs without interfering with the mounting holes. In lieu of power bugs, studs may be installed. A 16-pin Molex connector is provided for power distribution and to provide control signal interfacing. High frequency decoupling capacitors are provided at every slot while low frequency decoupling is distributed throughout the PCB. Signal Layout Onboard and inboard terminators are provided to reduce signal length and reduce possible signal reflections. A minimum stub length is utilized in routing and interconnecting to the terminators. The bus grant jumpers are arranged between each slot and are centered for easy installation and removal. All bus grant jumpers are accessible from the front and rear. Bustronic backplanes have been designed with the customers' system designs in mind in order to give the highest performance, reliability, and value in the industry. Automatic Daisy Chaining Optional automatic daisy chain eliminates a major source of problems when configuring a VME system, while eliminating the need for access to the backplane. J2 Backplane A+C Bussed The J2 backplane with A+C rows bussed is another option. The A+C rows are bussed in all slots. Also, row B has onboard, inboard termination. Power Bugs Busbar Connector Keys Screw Stud Ejector shroud