KM6-II Universal Subracks: EMC Conversion 4U AND 7U COMPONENTS In addition to the conventional methods of screening sensitive electronic equipment for EMC, it is possible to enclose normal plug-in units and cards together with the interface wiring within a fully screened area by using 4U or 7U endplates and other relevant components. For a typical EMC build please refer to the chart below for selection of piece parts and page cross reference. Typical 4U build with a 3U inner subrack confi gured Item Qty Page KM6-II EMC conversion EMC front panel fi ngers 19 4U Endplates of required depth 2 25 Front tie bar 4U/7U Closing 4U Endplate angles 2 25 4U/7U Mounting angles and end plates panels EMC cover kit 4U/7U Closing angles Front tie bars of required width 6 26 Rear backplane or connector tie bars of required width 2 27 and 28 EMC top and bottom cover kits of required width 1 22 Rear tie bar Rear closing angle kit 1 22 Front and rear closing panels 2 23 Normal subrack internal components 3U or 6U Tapped strips of required width 8 31 Tie bar to endplate screws pack of 100 Pack 45 Space for cabling Rear tie bar ACCESSORIES Order separately Product Page Front tie bars Figure 5 EMC Covers/conversion kit 18 20 Overall EMC closing panels 23 Backplane spacers 31 DIN 41612 connector mounting 31 PCB or Plug-in module guides 32 PCB Grounding clips 33 Positive guide retention tapped strips 33 PCB Retainers and guide nose extensions 34 PCB Ejectors 35 Divider Kits 38 40 Top and Bottom covers non-EMC 41 Horizontal mounting modules 42 Subrack handles 43 Fixing screws 45 and 75 Front panels and Plug-in units 50 77 Note: The conductive nish fi gives excellent electrical conductivity but is more easily marked than anodising. During assembly care should therefore be taken to avoid the deposition of grease and oil, particularly on the visible surfaces. 20 21KM6-II Universal and KM6-EC Subracks: EMC Conversion - piece parts KM6-II EMC CONVERSION: TOP AND BASE COVERS OVERALL DEPTH RFI The Overall EMC conversion kits are also available in their constituent parts. Plain rear tie bar (84HP) or additional front Finger tie bar (42 or 60HP) strip In addition to the 84HP versions, a small range of ventilated overall covers is available in 42HP and 60HP widths. In order to fit these, it is necessary to order reduced width Top/bottom cover front extrusions and tapped strips, M4 fixing screws and rear closing angles. Contents of kit Front tie bar Description Qty. Material/Finish Covers 2 0,9mm aluminium alloy, conductive clear chromate All fixings Rear closing angle Ordering Information Width Ventilated PCB Depth (mm) End Plate (mm) Order code No 160 240 42HP Yes 160 240 950-259417H M3 x 5 No 160 240 60HP Yes 160 240 950-259418F No 160 240 950-240557K 84HP Yes 160 240 950-240553G No 160/220 300 42HP Yes 160/220 300 950-259419D No 160/220 300 950-240556A Yes 160/220 300 950-240552J No 160/220 360 950-240559F 84HP Yes 160/220 360 950-240554E No 160/220 420 950-240558H Yes 160/220 420 950-240555C REAR CLOSING ANGLES These are fitted at the rear in conjunction with rear mounting tie bars. EMC Beryllium copper fingers should be ordered separately to maintain the shield between the subrack and EMC panels. Contents of kit Description Qty. Material/Finish Angles 2 AL extrusion, conductive clear chromate Ordering information Description Order code 3U Rear closing angles 950-240549J 4U Rear closing angles 950-259278G 6U Rear closing angles 950-240550B 7U Rear closing angles 950-259279E 9U Rear closing angles 950-240551L REAR MOUNTING TIE BARS Two should be ordered per subrack. 84HP version use a plain tie bar. Other widths use standard front tie bars. Sold in singles. Two tapped strips and eight fixings are also required. Ordering information Description: Rear mounting bars Width Type Order code Plain tie bar 950-221909A 84HP Tapped strip 950-202001E Front tie bar top 950-202743E 60HP Front tie bar bottom 950-202742G Tapped strip 950-202740L Front tie bar top 950-202736B 42HP Front tie bar bottom 950-202735D Tapped strip 950-202739G Tie bar fixing screws: Pack 100 (4 per tie bar required) 950-202734F 22 23