Siemens VDO Automotive AG SV C CE AIS LF IC: 267T-5WK47993 FCC ID:KR55WK47993 User Manual of the Siemens VDO Radio Frequency Transmitter type E60 File: S:\Postzula\BMW\E60\Func_E60.doc Page 1 of 6 Siemens VDO Automotive AG SV C CE AIS LF IC: 267T-5WK47993 FCC ID:KR55WK47993 General description of the RF transmitter E60 The RF remote control system E60 consists of a RF transmitter and a RF receiver mounted within the control unit. The RF transmitter is mechanically integrated in the head of the key. This transmitter is used to transmit an information for locking or unlocking the vehicle by an unidirectional RF transmission line for normal remote operation by pressing a button. In general the following functions are provided:
- Lock the car
- Unlock the car
- Unlock the trunk of the car Power supply The transmitter is provided with 1 Lithium accumulator (VL 2020) that gives a power supply of +3V. Buttons There are three buttons which enable to lock and unlock the doors and to unlock the trunk. During activation, the button is forced to the ground via a pull-up within the microcontroller. Typical usage pattern (for Europe only) 10 lock/unlock operations in 24 hours with a transmission duration of 0.28 seconds 4 lock/unlock operations in 24 hours with a transmission duration of 6 seconds total transmission duration of 8.8 seconds within 24 hours Transmitter ON 0.366 seconds / hour Transmitter OFF 3599.634 seconds / hour Duty Cycle: TON / T (ON+OFF) x 100% = 0.366 / 3,600 x 100 % = 0.01 %
File: S:\Postzula\BMW\E60\Func_E60.doc Page 2 of 6 Siemens VDO Automotive AG SV C CE AIS LF IC: 267T-5WK47993 FCC ID:KR55WK47993 Block diagrams of the transmitter 125 kHz LF Circuit
(L/C) 9,84375 MHz Crystal Button's C for LF communication /
RF - transmittion C reference frequency 616,54kHz Tx, RF data 4,807 kBit/sec PLL Transmitter IC 315 MHz Loop Antenna Power Supply 2,2 to 3,3 V 315 MHz 125 kHz LF Circuit
(L/C) 13,5687 MHz Crystal Button's C for LF communication /
RF - transmittion Power Supply 2,2 to 3,3 V C reference frequency 847,5kHz Tx, RF data 5,3 kBit/sec 434,2 MHz PLL Transmitter IC 434 MHz Loop Antenna File: S:\Postzula\BMW\E60\Func_E60.doc Page 3 of 6 Siemens VDO Automotive AG SV C CE AIS LF IC: 267T-5WK47993 FCC ID:KR55WK47993 125 kHz LF Circuit
(L/C) 13,5687 MHz Crystal Button's C for LF communication /
RF - transmittion Power Supply 2,2 to 3,3 V C reference frequency 847,5kHz Tx, RF data 5,3 kBit/sec 868,4 MHz PLL Transmitter IC 868,4 MHz Loop Antenna File: S:\Postzula\BMW\E60\Func_E60.doc Page 4 of 6 Siemens VDO Automotive AG SV C CE AIS LF IC: 267T-5WK47993 FCC ID:KR55WK47993 Variants Model 5WK4 7991 5WK4 7992 5WK4 7993 5WK4 7994 Technical Data Description 868.4MHz variant for Europe 434.2MHz variant for Europe 315MHz variant for USA 315MHz variant reduced power for Japan Carrier frequency model 5WK4 7991:
Carrier frequency model 5WK4 7992:
Carrier frequency model 5WK4 7993:
Carrier frequency model 5WK4 7994:
Output power model 5KW4 7991/2/3:
Field strength model 5WK47994:
Type of modulation model 5KW4 7991/2/3:
Type of modulation model 5KW4 7994:
Method of frequency generation:
Number of channels:
Power supply:
Type of akkku:
Transmission range:
868.4 MHz 0.05%
434.2 MHz 0.05%
315 MHz 0.05%
315 MHz 0.05%
< 10 mW
< 500V/m @ 3m FSK ASK PLL 1 akku (VL 2020) lithium
<10 m NOTE:
Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. File: S:\Postzula\BMW\E60\Func_E60.doc Page 5 of 6 Siemens VDO Automotive AG SV C CE AIS LF IC: 267T-5WK47993 FCC ID:KR55WK47993 Label design Europe: (433MHz + 868 MHz) Japan: (315MHz) Siemens VDO 5WK4 7991 or 5WK4 7992 Siemens VDO 5WK4 7994 USA/CAN: (315 MHz) Siemens VDO 5WK4 7993 IC: 267T-5WK47993 FCC ID:KR55WK47993 This device complies with part 15 of the FCC Rules. 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. File: S:\Postzula\BMW\E60\Func_E60.doc Page 6 of 6