HELLA FS191S Passive Entry and Passive Start Radio Identification Devices User Manual
- June 3, 2024
- HELLA
Table of Contents
HELLA FS191S Passive Entry and Passive Start Radio Identification Devices
HELLA GmbH & Co. KGaA
59552 Lippstadt
| FS191S Co|
pyright Protection: Confidenti
---|---|---
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.
**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.
Date:
2022-09-07
| Processed:
O. Kushova E-CA-D-HW
| Revision: 1.2| Page 3 of 10
HELLA GmbH & Co. KGaA
59552 Lippstadt
| FS191S Co|
pyright Protection: Confidenti
---|---|---
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
Date:
2022-09-07
| Processed:
O. Kushova E-CA-D-HW
| Revision: 1.2| Page 4 of 10
HELLA GmbH & Co. KGaA
59552 Lippstadt
| FS191S Co|
pyright Protection: Confidenti
---|---|---
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)| 3
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
LF
| 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
Date:
2022-09-07
| Processed:
O. Kushova E-CA-D-HW
| Revision: 1.2| Page 5 of 10
HELLA GmbH & Co. KGaA
59552 Lippstadt
| FS191S Co|
pyright Protection: Confidenti
---|---|---
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.
Date:
2022-09-07
| Processed:
O. Kushova E-CA-D-HW
| Revision: 1.2| Page 6 of 10
HELLA GmbH & Co. KGaA
59552 Lippstadt
| FS191S Co|
pyright Protection: Confidenti
---|---|---
Date:
2022-09-07
| Processed:
O. Kushova E-CA-D-HW
| Revision: 1.2| Page 7 of 10
HELLA GmbH & Co. KGaA
59552 Lippstadt
| FS191S Co|
copyright Protection : Confidential
---|---|---
Date:
2022-09-07
| Processed:
O. Kushova E-CA-D-HW
| Revision: 1.2| Page 8 of 10
HELLA GmbH & Co. KGaA
59552 Lippstadt
| FS191S Co|
pyright Protection: Confidenti
---|---|---
Date:
2022-09-07
| Processed:
O. Kushova E-CA-D-HW
| Revision: 1.2| Page 9 of 10
HELLA GmbH & Co. KGaA
59552 Lippstadt
| FS191S Co|
pyright Protection: Confidenti
---|---|---
FS191S Modes of operation
The following chapters describe the modes of operation that can be carried out by the FS191S devices.
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.
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.
**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.
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.
Date:
2022-09-07
| Processed:
O. Kushova E-CA-D-HW
| Revision: 1.2| Page 10 of 10
Documents / Resources
|
HELLA FS191S Passive Entry and Passive Start Radio Identification
Devices
[pdf] User Manual
FS191S, NBGFS191S, FS191S Passive Entry and Passive Start Radio Identification
Devices, Passive Entry and Passive Start Radio Identification Devices, Passive
Start Radio Identification Devices, Start Radio Identification Devices, Radio
Identification Devices, Identification Devices
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