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7 NEF TIER 3 ENGINES Print P2D32N003GB Base - February 2006 Bonding and screening Negative leads connected to a system bonded point must be both as short and possible and “star“-connected to each other, trying Further, following warnings are to be compulsorily observed for electronic components: - Electronic central units must be connected to system bonding when they are provided with a metallic shell. - Electronic central units negative cables must be connected both to a system bonding point such as the dashboard opening - Analog bonding (sensors), although not connected to battery negative system/terminal bonding, must have optimal isolation. - Screened circuits braiding must only electrically contact the end towards the central unit entered by the signal (Figure 2). - If junction connectors are present, unscreened section d, near them, must be as short as possible (Figure 2). - Cables must be arranged such as to result to be parallel to reference plane, i.e. as close as possible to chassis/body structure. 1. NEGATIVE CABLES “ STAR “ CONNECTION TO SYSTEM BONDING M 2. SCREENING THROUGH METALLIC BRAIDING OF A CABLE TO AN ELECTRONIC COMPONENT — C. CONNECTOR 88039 Figure 1 Figure 2 |