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Commission Implementing Regulation (EU) 2016/799Show full title

Commission Implementing Regulation (EU) 2016/799 of 18 March 2016 implementing Regulation (EU) No 165/2014 of the European Parliament and of the Council laying down the requirements for the construction, testing, installation, operation and repair of tachographs and their components (Text with EEA relevance)

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2.ELECTRICAL AND PHYSICAL CHARACTERISTICS

TCS_01All electronic signals shall be in accordance with ISO/IEC 7816-3 unless specified otherwise.
TCS_02The location and dimensions of the card contacts shall comply with the ISO/IEC 7816-2.
2.1. Supply Voltage and Current Consumption
TCS_03The card shall work according to specifications within the consumption limits specified in ISO/IEC 7816-3.
TCS_04The card shall work with Vcc = 3V (± 0,3V) or with Vcc = 5V (± 0,5V).

Voltage selection shall be performed according to ISO/IEC 7816-3.

2.2. Programming Voltage Vpp
TCS_05The card shall not require a programming voltage at pin C6. It is expected that pin C6 is not connected in an IFD. Contact C6 may be connected to Vcc in the card but shall not be connected to ground. This voltage should not be interpreted in any case.
2.3. Clock generation and Frequency
TCS_06The card shall operate within a frequency range of 1 to 5 MHz and may support higher frequencies. Within one card session the clock frequency may vary ± 2 %. The clock frequency is generated by the Vehicle Unit and not the card itself. The duty cycle may vary between 40 and 60 %.
TCS_07Under conditions contained into the card file EF ICC, the external clock can be stopped. The first byte of the EF ICC file body codes the Clockstop mode conditions:
LowHigh
Bit 3Bit 2Bit 1
001Clockstop allowed, no preferred level
011Clockstop allowed, high level preferred
101Clockstop allowed, low level preferred
000Clockstop not allowed
010Clockstop only allowed on high level
100Clockstop only allowed on low level

Bits 4 to 8 are not used.

2.4. I/O Contact
TCS_08The I/O contact C7 is used to receive data from and to transmit data to the IFD. During operation only either the card or the IFD shall be in transmit mode. Should both units be in transmit mode no damage shall occur to the card. Unless transmitting, the card shall enter the reception mode.
2.5. States of the Card
TCS_09The card works in two states while the supply voltage is applied:
  • Operation state while executing commands or interfacing with Digital Unit,

  • Idle state at all other times; in this state all data shall be retained by the card.

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