Document ID: chunk:federal_register_of_legislation:F2018C00339:body:0:p24
Version: federal_register_of_legislation:F2018C00339
Segment Type: other
Provision Reference: 
Character Range: 69889–73139

(ie pin 3 or pin 4).

       3.4   Each 'Antilock System' must connect pin 5 to -ve (eg pin 3 or pin 4) when initially energised and disconnect pin 5 from -ve after not less than 2 seconds or at the latest when the trailer reaches a speed of 15 km/h and no defect is present.

       3.5 Where the trailer also receives an electrical 'Control Signal' via an electric 'Control Line', the electrical connection shall conform to ISO 11992-1 and 11992-2:2003 and be a point-to-point type using the seven pin connector according to ISO 7638-1 or 7638-2:1997. The data contacts of the ISO 7368 connector shall be used to transfer information exclusively for braking (including the 'Antilock System') and running gear (steering, tyres and suspension) functions as specified in ISO 11992-2:2003.

        The braking functions have priority and shall be maintained in the normal and failed modes. The transmission of running gear information shall not delay braking functions. The power supply, provided by the ISO 7638 connector, shall be used exclusively for braking and running gear functions and that required for the transfer of trailer related information not transmitted via the electric 'Control Line'.

        However, in all cases, whenever power supplied by the ISO 7638:2003 connector is used for the functions defined in this paragraph above, the braking system shall have priority and be protected from an overload external to the braking system. This protection shall be a function of the braking system. The power supply for all other functions shall use other measures. Whenever power supplied by the ISO 7638:1997 connector is used for the functions defined above, the braking system shall have priority and be protected from an overload external to the braking system. This protection shall be a function of the braking system.

APPENDIX 2
        Example of Markings for Trailers
        Fitted with a 'Variable Proportioning Brake System'

         1.  MARKING REQUIREMENTS

         1.1   An example of markings for a mechanically controlled device in a trailer fitted with a compressed air 'Brake System' that meets clause 6.8.1 is shown below.

Control data  Vehicle loading  Axle No. 2 load at the ground  Inlet pressure   Nominal outlet pressure [kPa]
                               [kg]                           [kPa]
              Laden            7000                           600              600

              Unladen          2000                           600              240

         1.2   An example of markings for an air pressure controlled device in a trailer fitted with a compressed air 'Brake System' that meets clause 6.8.2 is shown below.

Control data              Vehicle loading  Axle No. 2 load at the ground  Suspension Pressure [kPa]  Nominal outlet pressure [kPa]
                                           [kg]
Inlet pressure [kPa] 600  Laden            7000                           300                        600

                          Unladen          2000                           100                        240

NOTES

This compilation of Vehicle Standard (Australian Design Rule 38/04 – Trailer Brake Systems) 2013 includes all the instruments set out in the Table of Instruments.