Continental Automotive Technologies 5WK47899 Keyless Car Entry User Manual Func CW170 5WK47899 v2
Continental Automotive GmbH Keyless Car Entry Func CW170 5WK47899 v2
User Manual
Siemens VDO Automotive AG SV I IC PE RF Design
IC:267T-5WK47899 FCC ID:KR55WK47899
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170_5WK47899_v2.doc
User Manual / Functional Description
of the
Siemens VDO
Radio Frequency Transmitter
type
5WK4 7899
5WK4 8025
Siemens VDO Automotive AG SV I IC PE RF Design
IC:267T-5WK47899 FCC ID:KR55WK47899
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170_5WK47899_v2.doc
1. SYSTEM OVERVIEW
The transmitter key consists of the fork (fork-shaped plastic component
with a steel shank and the slide-in module with a hole for the key ring, and
three buttons). The shank location is described below as "front", and the
side of the slide-in module which contains the buttons, is described as
"top". The key ring hole is thus located on the back on the left.
General functions of the buttons
Whenever a button is actuated, a telegram is emitted containing the
information as to which button has been actuated. Two successive button
actuations are only recognized if they are effected with an interval of at
least 65 ms. However, each button actuation gives rise to at least four
successive telegrams, even if another button is being actuated while they
are emitted. If the button is not released, max. 50 identical telegrams are
emitted. If the button is released after more than 4 telegrams have been
emitted, the telegram being generated is emitted, then the function is
aborted. Each new button actuation results in a new computation of the
alternate code, and in a new telegram sequence being sent. The control
unit receives the various telegrams generated by button actuation, and is
capable of distinguishing, via the alternate code, between continued
actuation and several separate, successive actuations of the button.
Designation and functions of the buttons
Button position Button
number
Name Effect
Front 1 Unlock Unlocking the vehicle
Center 2 Lock Locking the vehicle
Rear 3 Trunk Release Unlocking the trunk
Siemens VDO Automotive AG SV I IC PE RF Design
IC:267T-5WK47899 FCC ID:KR55WK47899
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170_5WK47899_v2.doc
3. TECHNICAL DESCRIPTION
Temperature range, storage : -40... +85 °C
Temperature range, operation: -20... +65 °C
Service voltage: 2.0... 3.4 V
Carrier frequency: 315.00 ± 100 kHz
Output power, unmodulated: < 75.6 dBµV/m
Oscillator build-up time: < 80 µs
Data transmission rate: 2000 Bd
Modulation: OOK (ASK)
Telegram length: 100 ms (52 ms data, 48 ms pause)
No. of telegrams: 4... 50
Bit coding: Biphase Code (Manchester Code)
Telegram: Ford Shark Protocol Version 1.3
4. VARIANTS
5WK4 7899 315 MHz - 3 buttons - Transponder DST Wedge
5WK4 8025 315 MHz - 3 buttons - Transponder DST Glass
5. LABEL DESIGN Canada, USA
Siemens VDO
5WK4 7899
IC:267T-5WK47899
FCC ID:KR55WK47899
Siemens VDO
5WK4 8025
IC:267T-5WK47899
FCC ID:KR55WK47899
Owner Manual:
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 any interference received, including interference that may cause undesired
operation.
Siemens VDO Automotive AG SV I IC PE RF Design
IC:267T-5WK47899 FCC ID:KR55WK47899
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170_5WK47899_v2.doc
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
Canada:
Operation is subject to the following two conditions: (1) this device may not cause
harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.