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) (c. 799)

Please note that the date you requested in the address for this web page is not an actual date upon which a change occurred to this item of legislation. You are being shown the legislation from , which is the first date before then upon which a change was made.

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

Appendix 6

FRONT CONNECTOR FOR CALIBRATION AND DOWNLOAD U.K.

1. HARDWARE U.K.

1.1. Connector U.K.

INT_001 The downloading/calibration connector shall be a 6 pin connector, accessible on the front panel without the need to disconnect any part of the tachograph, and shall comply with the following drawing (all dimensions in millimetres): U.K.

The following diagram shows a typical 6 pin mating plug:

1.2. Contact allocation U.K.

INT_002 Contacts shall be allocated in accordance with the following table: U.K.

Pin	Description	Remark
1	Battery minus	Connected to the battery minus of the vehicle
2	Data communication	K-line (ISO 14230-1)
3	RxD — Downloading	Data input to tachograph
4	Input/output signal	Calibration
5	Permanent power output	The voltage range is specified to be that of the vehicle power minus 3V to allow for the voltage drop across the protective circuitry Output 40 mA
6	TxD — Downloading	Data output from tachograph

1.3. Block diagram U.K.

INT_003 The block diagram shall comply with the following: U.K.

2. DOWNLOADING INTERFACE U.K.

INT_004 The downloading interface shall comply to RS232 specifications. U.K.

INT_005 The downloading interface shall use one start bit, 8 data bits LSB first, one even parity bit and 1 stop bit. U.K.

Data byte organisation U.K.

Start bit

:

one bit with logic level 0;

Data bits

:

transmitted with LSB first;

Parity bit

:

even parity

Stop bit

:

one bit with logic level 1

When numerical data composed by more than one byte are transmitted, the most significant byte is transmitted first and the least significant byte last.

INT_006 Transmission baud rates shall be adjustable from 9 600 bps to 115 200 bps. Transmission shall be achieved at the highest possible transmission speed, the initial baud rate after a start of communication being set at 9 600 bps. U.K.

3. CALIBRATION INTERFACE U.K.

INT_007 The data communication shall comply to ISO 14230-1 Road vehicles — Diagnostic systems — Keyword protocol 2000 — Part 1: Physical layer, First edition: 1999. U.K.

INT_008 The input/output signal shall comply with the following electrical specification: U.K.

Parameter	Minimum	Typical	Maximum	Remark
U low (in)			1,0 V	I = 750 μA
U high (in)	4 V			I = 200 μA
Frequency			4 kHz
U low (out)			1,0 V	I = 1 mA
U high (out)	4 V			I = 1 mA

INT_009 The input/output signal shall comply with the following timing diagrams: U.K.