Continental Automotive 5WK49308 User Manual

Annex No.5

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Page

Functional Description

Key: 5WK4 9308

Siemens AG
Siemens VDO Automotive SV I IC PE RF Design

IC: 267T-5WK49308 FCC ID:KR55WK49308

User Manual

of the

Siemens VDO

Radio Frequency Transmitter

Type

5wk4 9308

5wk4 9309
5wk4 9348
5wk4 9349
5wk4 9542

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Siemens AG
Siemens VDO Automotive SV I IC PE RF Design

IC: 267T-5WK49308 FCC ID:KR55WK49308

1. GENERAL DESCRIPTION OF THE RF TRANSMITTER

The RF remote control system 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 information for
locking or unlocking the vehicle by a 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

- Panic Alarm

Immobilizer Transponder

When the key is operating as an immobilizer transponder, communication is
done over a "contact less interface" depending on strong magnetic coupling.
The transponder is the passive side of the link and there is no RF
transmission from it involved in any aspect.

SW1

SW2

SW3

SW4

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