ANNEX I C U.K.Requirements for construction, testing, installation, and inspection

Appendix 16

ADAPTOR FOR M1 AND N1 CATEGORY VEHICLES U.K.

4. CONSTRUCTION AND FUNCTIONAL REQUIREMENTS FOR THE ADAPTOR U.K.

4.1. Interfacing and adapting incoming speed pulses U.K.

ADA_011 The adaptor input interface shall accept frequency pulses representative of the vehicle speed and distance travelled. Electrical characteristics of the incoming pulses are: TBD by the manufacturer. Adjustments accessible to only the adaptor manufacturer, and to the approved workshop performing the adaptor installation shall allow the correct interfacing of the adaptor input to the vehicle, if applicable. U.K.

ADA_012 The adaptor input interface shall be able, if applicable, to multiply or divide the frequency pulses of the incoming speed pulses by a fixed factor, to adapt the signal to the k factor range defined by this Annex (4 000 to 25 000 pulses/km). This fixed factor may only be programmed by the adaptor manufacturer, and the approved workshop performing the adaptor installation. U.K.

4.2. Inducing the incoming pulses to the embedded motion sensor U.K.

ADA_013 The incoming pulses, possibly adapted as specified above, shall be induced to the embedded motion sensor, so that each incoming pulse shall be detected by the motion sensor. U.K.

4.3. Embedded motion sensor U.K.

ADA_014 The embedded motion sensor shall be stimulated by the induced pulses, thus allowing it to generate motion data accurately representing the vehicle movement, as if it was mechanically interfaced to a moving part of the vehicle. U.K.

ADA_015 The identification data of the embedded motion sensor shall be used by the VU to identify the adaptor [95]. U.K.

ADA_016 The installation data stored in the embedded motion sensor shall be considered to represent the adaptor installation data [122]. U.K.

4.4. Security requirements U.K.

ADA_017 The adaptor housing shall be designed so that it cannot be opened. It shall be sealed, so that physical tampering attempts can be easily detected (e.g. through visual inspection, see ADA_035). Seals shall follow the same requirements of motion sensor seals [398 to 406] U.K.

ADA_018 It shall not be possible to remove the embedded motion sensor from the adaptor without breaking the seal(s) of the adaptor housing, or breaking the seal between the sensor and the adaptor housing (see ADA_034). U.K.

ADA_019 The adaptor shall ensure that motion data may only been processed and derived from the adaptor input. U.K.

4.5. Performance characteristics U.K.

ADA_020 The adaptor shall be fully operational in the temperature range defined by the manufacturer. U.K.

ADA_021 The adaptor shall be fully operational in the humidity range 10 % to 90 % [214]. U.K.

ADA_022 The adaptor shall be protected against over-voltage, inversion of its power supply polarity, and short circuits [216]. U.K.

ADA_023 The adaptor shall either: U.K.

• react to a magnetic field disturbing vehicle motion detection. In such circumstances, the vehicle unit will record and store a sensor fault [88] or,

• have a sensing element that is protected from, or immune to, magnetic fields [217].

ADA_024 The adaptor shall conform to international regulation UN ECE R10, related to electromagnetic compatibility, and shall be protected against electrostatic discharges and transients [218]. U.K.

4.6. Materials U.K.

ADA_025 The adaptor shall meet the protection grade (TBD by the manufacturer, depending on the installation position) [220, 221]. U.K.

ADA_026 The colour of the adaptor housing shall be yellow. U.K.

4.7. Markings U.K.

ADA_027 A descriptive plaque shall be affixed to the adaptor and shall show the following details: U.K.

• name and address of the manufacturer of the adaptor,

• manufacturer's part number and year of manufacture of the adaptor,

• approval mark of the adaptor type or of the recording equipment type including the adaptor,

• the date on which the adaptor has been installed,

• the vehicle identification number of the vehicle on which it has been installed.

ADA_028 The descriptive plaque shall also show the following details (if not directly readable from the outside on the embedded motion sensor): U.K.

• name of the manufacturer of the embedded motion sensor,

• manufacturer's part number and year of manufacture of the embedded motion sensor,

• approval mark for the embedded motion sensor.