Continental Automotive 5WK49046 Remote Control for Vehicle Access User Manual

Continental Automotive GmbH Remote Control for Vehicle Access

user manual

Annex No.5 Technical Description Key 5WK4 9046
Siemens VDO Automotive AG SV C BC P2 RF TG IC: 267T-5WK49046 FCC ID:KR55WK49046 I:\POSTZULA\MB_DC\DesignKey\Original_Doku\Func_Designkey.doc Page 1 of 7 User Manual of the Siemens VDO Remote Control Transmitter Type: Designkey
Siemens VDO Automotive AG SV C BC P2 RF TG IC: 267T-5WK49046 FCC ID:KR55WK49046 I:\POSTZULA\MB_DC\DesignKey\Original_Doku\Func_Designkey.doc Page 2 of 7 General description of the Designkey "Keyless Go" The Designkey incorporates two main functional features. 1. RF remote control system : activation by button press 2. Keyless go system : activation by an external LF-signal source. In both activation modes the Designkey answers with the available RF (radio frequency) interface. For remote control function additionally IR (infra red) communication is in use. In regular application the RF receiver is located within the control unit which is mounted in the car interior. The Designkey RF transmitter antenna is mechanically integrated in the key head. The RF transmitter is used to transmit different information by a unidirectional transmission line to the RF receiver within the control unit. In regular application the following functions are provided by the Designkey : - Lock the car - Unlock the car - Unlock the trunk of the car - Driver authentication ( Keyless Go ) - Panic activation ( USA only ) Power supply The transmitter is provided with 2 Lithium batteries (CR 2025) that both gives a power supply of +3V. Buttons There are three buttons which enable to lock and unlock the doors and to unlock the trunk and an extra button in case of required panic function (USA only). During activation, by button press the microcontroller port is forced to ground via a “pull-up” within the microcontroller.
Siemens VDO Automotive AG SV C BC P2 RF TG IC: 267T-5WK49046 FCC ID:KR55WK49046 I:\POSTZULA\MB_DC\DesignKey\Original_Doku\Func_Designkey.doc Page 3 of 7 Typical usage pattern (for Europe only) 96 lock/unlock operations in 24 hours with typical transmission duration of 0.8 seconds → 4 lock/unlock operations with one hour Transmitter ON 3.2 seconds / hour Transmitter OFF 3,596.8 seconds / hour Duty Cycle: TON / T (ON+OFF) x 100% = 3.2 / 3,600 x 100 % = 0.08 %
Siemens VDO Automotive AG SV C BC P2 RF TG IC: 267T-5WK49046 FCC ID:KR55WK49046 I:\POSTZULA\MB_DC\DesignKey\Original_Doku\Func_Designkey.doc Page 4 of 7 Block diagrams of the transmitter µC for RF Tx and IR RxTx data transmission µC for button and LF communication Button's Keyless Go - Control Unit IR- Transmitter IR - Receiver RF transmitter LED Power management Manchester coded Battery A Battery B standard µC interface 9,84375 MHz Crystal for 315,0 MHz 13,5687 MHz Crystal for 433.92 MHz Crystal
Siemens VDO Automotive AG SV C BC P2 RF TG IC: 267T-5WK49046 FCC ID:KR55WK49046 I:\POSTZULA\MB_DC\DesignKey\Original_Doku\Func_Designkey.doc Page 5 of 7 Variants Model Description 5WK4 9045 433.92 MHz variant for Europe 5WK4 9046 315.00 MHz variant for USA Technical Data Carrier frequency model 5WK4 9045: 433.92 MHz ± 0.05% Carrier frequency model 5WK4 9046: 315.00 MHz ± 0.05% Output power model 5KW49045 : < 10 mW Field strength model 5WK49046 : < 6000µV/m @ 3m Type of modulation: FSK Method of frequency generation: PLL Number of channels: 1 Power supply: battery (2x CR 2025) Type of battery: lithium Transmission range: <10 m NOTE: Changes or modifications not expressly approved by the manufacturer could void the users authority to operate the equipment.
Siemens VDO Automotive AG SV C BC P2 RF TG IC: 267T-5WK49046 FCC ID:KR55WK49046 I:\POSTZULA\MB_DC\DesignKey\Original_Doku\Func_Designkey.doc Page 6 of 7 Label design Europe: (433.92 MHz) USA/CAN: (315 MHz) Siemens VDO 5WK4 9045 Siemens VDO 5WK4 9046 IC: 267T-5WK4 9046 FCC ID: KR55WK49046 This device complies with part 15 of the FCC Rules and RSS-210. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept interference received, including interference that may cause undesired operation.
Siemens VDO Automotive AG SV C BC P2 RF TG IC: 267T-5WK49046 FCC ID:KR55WK49046 I:\POSTZULA\MB_DC\DesignKey\Original_Doku\Func_Designkey.doc Page 7 of 7 Homologation functionality For homologation use the Designkey samples are programmed with a special software which allows to set the RF transmission in following modes : 1 ) Constant carrier high frequency 2 ) Constant carrier low frequency 3 ) 1 kBit Modulation 4 ) 10 kBit Modulation The following diagram shows how to activate the different homologation modes. OFFConstantLOWFREQ.(LED Blink200ms)ConstantHIGHFREQ.(LED Blink200ms)Modulated1kbit/s(LED Blink20ms)Modulated10kbit/s(LED Blink50ms)trunk buttonany buttonopen buttonclose or panic or trunkbuttonclose buttonclose button trunk or open or panicbuttonany buttonpanic buttonopen button

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