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Annex No.5
Technical Description
Key: 5WK4 9264
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Siemens VDO Automotive AG SV C BC P2 RF
IC: 267T-5WK49264 FCC ID:KR55WK49264
User Manual / Functional Description
of the
Siemens VDO
Radio Frequency Transmitter
Type
5WK49264
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Siemens VDO Automotive AG SV C BC P2 RF
IC: 267T-5WK49264 FCC ID:KR55WK49264
1. SYSTEM OVERVIEW
The RF remote control system consists of a RF transmitter and a RF
receiver. The RF transmitter is mechanically integrated in the head of the
key. This transmitter is used to transmit information for locking or unlocking
the vehicle as also Trunk Lid/Approach Light/Panic/comfort open/Comfort
Close operations by an unidirectional RF transmission line for normal
remote operation by pressing a button. The information will be transmitted
on the first channel and afterwards also on the second channel.
2. POWER SUPPLY
The transmitter is provided with 1 Lithium battery (CR 2430) that gives a
tension of feeding of +3V.
The battery inversion is protected mechanically.
3. BUTTONS
All buttons are on the top side of the key housing. They are arranged in the
following way.
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Siemens VDO Automotive AG SV C BC P2 RF
IC: 267T-5WK49264 FCC ID:KR55WK49264
4. BLOCK DIAGRAMM
The block diagram below shows the main electronic units of the transmitter:
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Siemens VDO Automotive AG SV C BC P2 RF
IC: 267T-5WK49264 FCC ID:KR55WK49264
5. TYPICAL USAGE PATTERN
25 lock/unlock /Trunk Lid/Approach Light/Panic/comfort open/Comfort
Close operations in 24 hours with average transmission duration of
0.84 seconds → 1, 04 lock/unlock operations within one hour
Transmitter ON 0.875 seconds / hour
Transmitter OFF 3599.12 seconds / hour
Duty Cycle: TON / T
(ON+OFF)
x 100% = 0.875 / 3,600 x 100 % = 0.02 %
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Siemens VDO Automotive AG SV C BC P2 RF
IC: 267T-5WK49264 FCC ID:KR55WK49264
6. TECHNICAL DESCRIPTION
Carrier frequency (incl. Tolerance): 433, 67 MHz / 434,251MHz
Output power/field strength: < 10 mW
Type of modulation: GFSK
Method of frequency generation: fractional N PLL synthesizer
Number of channels: 2 ch
Power supply: battery (CR 2430)
Nominal voltage 3,0V
Voltage supply range: 2,4V ... 3,2V
Type of battery: lithium
Transmission range: 100 m (system range)
Type of antenna: PCB loop antenna
Length/size of antenna: ca. 4 ...5cm
7. LABEL DESIGN CANADA, EUROPE, USA
Siemens VDO
5WK49264
IC: 267T-5WK49264
FCC ID:KR55WK49264
8. ENTRY OWNERS MANUAL CANADA, USA:
NOTE
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.
COUTION
Changes or modifications not expressly approved by the manufacturer could
avoid the user's authority to operate the equipment.
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