Hella FS191S Manual de usuario

HELLA GmbH & Co. KGaA

59552 Lippstadt

FS191S

Date:

2022-09-07

Processed:

O. Kushova E-CA-D-HW

Revision: 1.2

Page 1of 10

This document is confidential. Its contents are not to be exploited, passed on or disclosed to third parties without our express permission. All rights are reserved.

User Manual

FS191S

Passive Entry / Passive Start

radio identification devices

HELLA GmbH & Co. KGaA

59552 Lippstadt

FS191S

Date:

2022-09-07

Processed:

O. Kushova E-CA-D-HW

Revision: 1.2

Page 2of 10

This document is confidential. Its contents are not to be exploited, passed on or disclosed to third parties without our express permission. All rights are reserved.

Content

1FS191S family overview 3

2Safety warnings and precautions 3

3Communication technologies 4

4FS191S Technical data summary 5

5FS191S pictures 6

6FS191S Modes of operation 10

6.1 Remote keyless entry (RKE) 10

6.2 Keyless Entry / Keyless Go (PKE) 10

6.3 Transponder mode 10

7Statement: 10

HELLA GmbH & Co. KGaA

59552 Lippstadt

FS191S

Date:

2022-09-07

Processed:

O. Kushova E-CA-D-HW

Revision: 1.2

Page 3of 10

This document is confidential. Its contents are not to be exploited, passed on or disclosed to third parties without our express permission. All rights are reserved.

1 FS191S family overview

This document is to describe the FS191S family of Radio Identification Devices (RID) intended for use

in automotive Passive Entry / Passive Start systems. All family members use the same PCB layout

and basic type of housing. There are different variants regarding number of buttons, finish of the

housing, labelling of the housing etc. Images of the devices are given in chapter 5.

2 Safety warnings and precautions

Do not ingest battery, Chemical Burn Hazard

This product contains a coin / button cell battery. If the coin /

button cell battery is swallowed, it can cause severe internal

burns in just 2 hours and can lead to death.

Keep new and used batteries away from children. Should a

child swallow a battery, consult a physician immediately.

If the battery compartment does not close securely, stop

using the product and keep it away from children.

If you think batteries might have been swallowed or placed

inside any part of the body, seek immediate medical

attention.

CAUTION

Risk of explosion if the battery is replaced by an incorrect

type

Keep batteries away from direct sunlight, high temperature,

and high humidity

Please be sure to observe the following warnings. As batteries contains flammable substances such

as lithium or other organic solvents, they may cause heating, rupture or ignition

Warning

1. Do not charge, short, disassemble, deform or heat batteries. Do not throw batteries into fire.

2. When discarding batteries, insulate the positive and negative terminals of batteries with

insulating tape, etc. When disposed of improperly, lithium batteries may short, causing them

to become hot, burst or ignite.

Caution

1. Be sure to connect the positive and negative electrodes correctly.

2. Avoid mixed use of batteries, i.e. new, used or different types.

3. Avoid direct soldering to batteries.

HELLA GmbH & Co. KGaA

59552 Lippstadt

FS191S

Date:

2022-09-07

Processed:

O. Kushova E-CA-D-HW

Revision: 1.2

Page 4of 10

This document is confidential. Its contents are not to be exploited, passed on or disclosed to third parties without our express permission. All rights are reserved.

3 Communication technologies

There are two basic communication technologies implemented in the FS191S devices:

•Low Frequency (LF) communication, used for waking up the devices and for communication

with the immobilizer system of the vehicle

•RF (UHF) communication, used for communication between radio identification devices and

vehicle

HELLA GmbH & Co. KGaA

59552 Lippstadt

FS191S

Date:

2022-09-07

Processed:

O. Kushova E-CA-D-HW

Revision: 1.2

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This document is confidential. Its contents are not to be exploited, passed on or disclosed to third parties without our express permission. All rights are reserved.

4 FS191S Technical data summary

Markets

USA, Canada

Model name

FS191S

DC Supply voltage range

Approx. 2.2V to 3.2 V

Technology

RF (UHF)

Number of RF channels (1)

RF channel frequencies (1)

433.46 MHz

433.92 MHz

434.36 MHz

RF radiated power

Approx. 78 dBµV/m @ 3m (average)

Mode of operation

Simplex TX only (RKE mode)

Half duplex TRX (PKE mode)

Modulation method

FSK (F1D)

Frequency deviation

+/- 7.8 KHz (RKE mode)

+/ - 20 KHz (PKE mode)

Data rate

7.8 Kbit / s (RKE mode)

19.2 Kbit / s (PKE mode)

RF Antenna

Integrated PCB loop

Operating frequency

125 kHz

Modes of operation

LF detector

Passive Transponding

(1) Not all channels may be used for every RF mode of operation

Table 1: Versions of Hella FS191S

HELLA GmbH & Co. KGaA

59552 Lippstadt

FS191S

Date:

2022-09-07

Processed:

O. Kushova E-CA-D-HW

Revision: 1.2

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This document is confidential. Its contents are not to be exploited, passed on or disclosed to third parties without our express permission. All rights are reserved.

5 FS191S pictures

The following illustrations show the exterior view of the FS191S devices.

The images are exemplary, other designs e.g. with less buttons or less side buttons or different button

labels or different button positions or different colors or different customer label or different finish may

exist.

Picture 1: FS191S (3 top buttons, no side button) top Picture 2: FS191S (3 top buttons, no side button) top

Picture 3: FS191S (4 top buttons, no side button) top Picture 4: FS191S (4 top buttons, no side button) top

Picture 5: FS191S (4 top buttons, no side button) top Picture 6: FS191S (5 top buttons, no side button) top

HELLA GmbH & Co. KGaA

59552 Lippstadt

FS191S

Date:

2022-09-07

Processed:

O. Kushova E-CA-D-HW

Revision: 1.2

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This document is confidential. Its contents are not to be exploited, passed on or disclosed to third parties without our express permission. All rights are reserved.

Picture 7: FS191S (5 top buttons, no side button) top Picture 8: FS191S (5 top buttons, no side button) top

Picture 9: FS191S (3 top buttons, 2 side buttons) top Picture 10: FS191S (4 top buttons, 2 side buttons) top

Picture 11: FS191S (4 top buttons, 2 side buttons) top Picture 12: FS191S (5 top buttons, 2 side buttons) top

Side button

HELLA GmbH & Co. KGaA

59552 Lippstadt

FS191S

Date:

2022-09-07

Processed:

O. Kushova E-CA-D-HW

Revision: 1.2

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This document is confidential. Its contents are not to be exploited, passed on or disclosed to third parties without our express permission. All rights are reserved.

Picture 13: FS191S (VW, no side button) back Picture 14: FS191S (Seat, no side button) back

Picture 15: FS191S (Skoda, no side button) back Picture 16: FS191S (Cupra, no side button) back

Picture 17: FS191S (Ford, no side button) back

HELLA GmbH & Co. KGaA

59552 Lippstadt

FS191S

Date:

2022-09-07

Processed:

O. Kushova E-CA-D-HW

Revision: 1.2

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This document is confidential. Its contents are not to be exploited, passed on or disclosed to third parties without our express permission. All rights are reserved.

Picture 18: FS191S (VW, 2 side buttons) back Picture 19: FS191S (Seat, 2 side buttons) back

Picture 20: FS191S (Skoda, 2 side buttons) back Picture 21: FS191S (Cupra, 2 side buttons) back

Picture 22: FS191S (Ford, 2 side buttons) back

Side button

HELLA GmbH & Co. KGaA

59552 Lippstadt

FS191S

Date:

2022-09-07

Processed:

O. Kushova E-CA-D-HW

Revision: 1.2

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This document is confidential. Its contents are not to be exploited, passed on or disclosed to third parties without our express permission. All rights are reserved.

6 FS191S Modes of operation

The following chapters describe the modes of operation that can be carried out by the FS191S

devices.

6.1 Remote keyless entry (RKE)

The Remote Keyless Entry (RKE) functions enable the user to control the central locking system and

other functions of a vehicle from a distance. It is always manually activated by pressing one of the

buttons on the device. When activated, the device will transmit a sequence of RF messages on two of

the available RF channels.

6.2 Keyless Entry / Keyless Go (PKE)

Keyless Entry / Keyless Go functions allow the user control of the central locking system and engine

start / stop without manual operation of the key. For these functions the devices can be woken up by a

125 kHz low frequency (LF) signal generated by the vehicle. For recognition of LF signals the devices

contain a set of 3 orthogonal sensor coils (LF antenna array) and a detection circuit that is integrated

in the main μC. For Keyless Entry / Keyless Go functions RF communication takes place in half duplex

mode on two of the available RF channels.

6.3 Transponder mode

The transponder mode serves as ab backup means for communication with the immobilizer system if

the Keyless Go function is not available for any reason. In transponder mode the device is supplied

from the magnetic field generated by the immobilizer system of the vehicle and communicates with the

vehicle using damping modulation. The nominal working frequency of the transponder system is

125 KHz. No active RF communication is used in transponder mode. Therefore, the device does not

generate or emit any RF energy in this mode.

7 Statement:

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.

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