VEROTEC Electronics Packaging

OVERVIEW 1.03-1.14 An introduction to subracks & KM6 Eurocard dimensional criteria for KM6 subrack systems IEEE 1101.10/11 dimensional criteria A guide to EMC screening subracks Subrack materials and finishes TecServ+ (customising service) KM6-II Subrack piece parts TecServ+ (customising service) KM6-HD Subracks 1.44-1.46 KM6-HD Subrack piece parts

An introduction to subrack systems and KM6 INTRODUCTION Fully compatible with DIN 41494 part 5 and IEC 60297-3, KM6-II subracks are strong, versatile and easy to assemble. All tiebars have two screw fixing positions making the construction robust yet accurate and well suited to light and medium duty applications. The range is extensive, offering 3U, 4U, 6U and 9U heights in width of 24, 42, 60 & 84HP and depths of 160, 240, 300, 360 & 420mm. KM6-II Subracks are supplied either in kit form or individual component parts and are complimented by a wide range of accessories, including EMC conversion...

Eurocard dimensional criteria for KM6 subrack systems INTRODUCTION KM6 Subracks are designed around a number of dimensional standards that aim to provide a basic level of interchangeability between different versions and between manufacturers of similar systems. The basis is the DIN41494 Eurocard standard. The dimensions for the housing of Eurocards are described in IEC60297 section 3 SC48D. Plug-in units are modular in concept and are based on the first card position being 3,27mm from the left hand datum line of the working aperture; subsequent card positions are on multiples of 5,08mm (1HP)...

IEC 60297-3 dimensional criteria 1 KM6 Subracks First fastening location These illustrations show dimensions extracted from IEC 60297-3. They are not comprehensive, but should prove generally informative PCB Positions incrementally by 5,08 multiples Centre line first PCB Pitch line Rear attachment plane Scrap view of 6U showing dimensions available for centre rear extrusion with 6U plug-in units Subrack dimensions shown are for 3U x 84HP and single Eurocards Heights increment by 44,45mm (1U) Widths increment by 5,08mm (1HP) Pitch line

Motherboard fixing centres 122,5 Front panel fixing centres 122,5 *Rear attachment plane (i.e. Connector Mounting Face) For DIN 41612 types BCDMQRS For types FGUV add 10mm Front attachment plane 175,24 * Section 'A-A' DIN 41612 connector mounted on motherboard Alternative for direct mounting of DIN 41612 connectors Fixing holes incrementing on multiples of 5,08 as required 84 x 5,08 Motherboard dimensions showing Type 'B' & 'C' DIN 41612 connector positions Front view Pitch line Front attachment plane Pitch line Limit of component mounting area Fixing holes on multiples of 5,08 'U' Pitch line...

IEEE 1101.10/11 dimensional criteria 1 INTRODUCTION Box type plug in unit Injector / Extractor operating feature IEEE110.10 was driven by a number of requirements: The standardisation of EMC front panel geometry to ensure compatibility between various manufacturers’ products. EMC seals The standard also addresses the problems of electrostatic protection and a need to code plug-in units to prevent incorrect plug-up, where such actions could have catastrophic results (in particular in live insertion situations). Infill (blank) panel Coding / ESD feature Injector / Extractor IEEE1101.11 standardises...

Typical plug-in unit showing injector / extractor coding, ESD and front panel geometry IEEE 1101.10/11 dimensional criteria Protective cover (optional) Usable component space Plug-in unit detail

IEEE 1101.10/11 dimensional criteria 1 KM6 Subracks Subrack front view Board type Plug-in unit Rear View Alignment / ESD feature B C Empty Printed Board Keying Options Keying chamber (subrack mounted) Keying chamber front panel Front Extrusion Front attachment plane Guide rail 10 60 Guide rail ESD contact area Component side Component side Rear ESD contact breaks before connector engagement ESD contact maintained during connector engagement PCB ESD Contact strips top / bottom

IEEE 1101.10/11 dimensional criteria Typical arrangement of 1101.11 subrack with rear plug-up Rear (transition) plug-up unit Injector / extractor operating feature Midplane Infill (blank) panel Coding ESD feature Injector / extractor Rear (transition) plug-up unit/front panel Front (transition) plug-up unit/front panel In line configuration for rear (transition) plug-up EMC panels. Midplane Db Dimensions refer to 160 unit Front rear plug-up options

IEEE 1101.10/11 dimensional criteria 1 Rear plug-up dimensions (160 shown) Spacer (user defined) Rear free connector Rear fixed connector Front fixed connector Inspection Dimension Rear (transition) plug up detail 3U shown ESD / Electrical safety ground Frame mounted coding / ESD / location / electrical safety ground feature

A GUIDE TO THE EMC SCREENING SUBRACKS A guide to EMC screening subracks Whilst KM6-HD is designed / supplied with full line capability as standard, KM6-II subracks can be retrospectively screened by the addition of covers, gaskets, front panels and associated components – as detailed in the relevant section of this catalogue. Please note that any reference in this section to attenuation figures is theoretical, and examples have been obtained under laboratory conditions only. By its nature, an empty enclosure does not fall within the scope of any EMC performance regulation, since all the existing...

The increasing use of electronics in such applications as mobile, roadside, factory and earthquake environments has led to an increased awareness of the effects of shock and vibration on full systems. The use of subracks in these conditions is generally limited by a number of factors. 1) The loading - both total weight and its distribution; increased height to some extent improves the vertical stability; increasing width adversely affects its resistance to vibration in the vertical axis and the deflection of horizontal components; increasing depth encourages ‘parallelogramming’ in sideways shock...