eao 09 Series Product information sheet

www.eao.com
Series 09 –I/O Universal Switch
Operating instructions and safety instructions
Operating instructions

www.eao.com 2
Operating and safety instructions
Project
Series 09, 1901 Universal Switch (Hardwired Standard Version)
Document Number
1901950001
Document
Description
Operating and safety instructions for the Series 09 Universal Switch (I/O
Hardwired Standard Version)
EAO Automotive GmbH & Co. KG
Richard-Wagner-Straße 3
08209 Auerbach/Vogtl.

www.eao.com 3
Change History
Version
Change Description
Status
Author
Date
01
initial
initial
HAS
13.01.2022
02
initial
review
ESF, HEP
16.02.2022
03
addition
review
HAS
03.08.2022
04
Chapter 3
review
ESF
26.09.2022
Referenced Documents
Reference
Document Number
Version
Author
Date
1901 product information
1901940001
08
EBJ
20.12.2021
EG/EC/CE Declaration of
Conformity
-
-
ESF
29.11.2021
Related Products
Version
Series 09 Universal Switch
I/O Hardwired Standard Variant
I/O Hardwired Dual Contact
(redudant switching signal)

www.eao.com 4
Table of contents
1. Safety warnings....................................................................................................7
2. Proper environment..............................................................................................8
3. General description..............................................................................................8
4. Technical specification.......................................................................................10
5. Scope of delivery................................................................................................12
6. Storage..............................................................................................................12
7. Mechanical installation/mounting........................................................................13
8. Electrical installation and pinning .......................................................................13
9. Typical failure modes and diagnosis option........................................................19
10. Cleaning.............................................................................................................20
11. Liability for quality defects ..................................................................................20
12. Service, repair....................................................................................................21
13. Market surveilance.............................................................................................21
14. Decommissioning, disposal................................................................................21
15. Declaration of Conformity...................................................................................21

www.eao.com 5
List of abbreviations and units
DIN
Deutsches Institut für Normung/German institute for standardization
EN
European standard
EU
European Union
HMI
Human-Machine-Interface
IP
International Protection
ISO
International Organization for Standardization
LED
Light emitting diode
MOT
Ministry of Transport
OEM
Original Equipment Manufacturer
VDA
Verband der Automobilindustrie/German Association of the automotive
industry

www.eao.com 6
Used symbols
Caution!
Indicates a hazardous situation which, if not avoided, may result in a
minor or moderate injury
Attention
Describes information on installation which, if ignored, can lead to
malfunctions
Note
Indicates a situation which, if not avoided, may result in property
damage
Indicates an executive activity
Indicates an application tip

www.eao.com 7
1. Safety warnings
The safe system handling requires knowledge of the operating instructions.
Caution!
Connect the power supply in accordance with the safety regulations
for electrical equipment.
Risk of injury
Damage of the pushbutton/indicator
Note
Avoid shocks and impacts to the pushbutton/indicator during installation
Damage to or destruction of the pushbutton/indicator
The supply voltage must not exceed the specified limit.
Damage to or destruction of the pushbutton/indicator
Protect the connector from damages
Damage to or destruction of the pushbutton/indicator
Intended use
The S09 Universal Switches/indicators were developed for E1 applications in vehicles. The
wide range of configuration and design features, as well as the possibility of easy adaptation
to customer-specific requirements, make the units the ideal choice for use in vehicle interiors
of passenger cars, special vehicles, trucks and buses.
The pushbuttons/indicators may only be operated within the parameters specified in the
technical data.
The pushbuttons/indicators must be used in such a way that no persons are endangered, or
machines or other equipment become damaged in the event of failure or malfunction.
Commissioning must be carried out by qualified personnel.

www.eao.com 8
2. Proper environment
See 4 Technical specification.
Note
If possible, avoid abrupt changes in the operating temperature of the
pushbutton/indicator, cable and connector.
Damage to the pushbutton/indicator, connector
Caution!
Do not operate the pushbutton/indicator in:
Potentially explosive atmospheres
Applications where the pushbutton/indicator and connector are
completely or partly submerged and situations where the switch is
exposed with a slug of liquid or splashes.
Situations in which the pushbutton/indicator and connector are
subjected to harsh external shocks and impacts
Risk of injury
Damage to the pushbutton/indicator, connector
3. General description
The Series 09 Universal Switch family has been developed for E1 applications, includes an
integrated connector recess and is ideally suited for use in vehicle interiors –in particular for
various switching controls in passenger cars, electric vehicles, trucks, buses and special
vehicles.
The S09 Universal Switch is available in different configurations and combinations for a large
range of applications. Thanks to the diagnostic capability through resistance coding (Namur),
for example cable breaks and switching states can be detected. There is also the option of two
redundant switching signals.
- White symbol illumination with three, one or without red LED status indicator
- Red Symbol Illumination e.g. for use as a hazard warning light
- Indicator version without mechanical function with and without illumination
- Two different haptic variants (firm or soft haptic)
- Two different connector coding’s
- ISO 7000 or customized symbols
- Standard Single Contact or Dual Contact (Two redundant switching signals)
- Optional diagnostic feature through resistance coding (Namur)

www.eao.com 9
Typical applications
Wide range of typical vehicle applications due to multi-status indication –in particular: Climate
Control, Menu navigation, central locking, Seat Heating and many others.
The universal switch can be also used for safety-relevant applications, for example Hazard
Warning Switch, Chassis- and Transmission Control or Parking Brake. Thanks to the
diagnostic capability through resistance coding (Namur), cable breaks and switching states
can be detected. Theredundancy of the switchingcontacts of the dual-contact versions speaks
for itself.
The customer must ensure the functional and product safety conformity of the integration of
the switch. Therefore, the customer must perform all security activities at the integration level
of the switch and confirm that all relevant functions are implemented to ensure that the
application handles critical issues in a secure manner.
Advantages and Key features
Ideal for safety-relevant applications
Wide range of designs and application-specific configuration options
Ergonomic modular design with IP5K4 protection (frontside)
ISO 7000 or customized symbols
Developed and manufactured in accordance with IATF 16949
White Symbol illumination and red Multi status indication
Wide range of applications due to multi-status indication
Snap-in mounting
Two different haptic variants (firm or soft haptic)
Single- or dual contact switching element
Optional diagnosable switch (Namur circuit with double contacts)

www.eao.com 10
4. Technical specification
Options
Standard Switch 12 V or 24 V (optional with NAMUR)
Dual Contact Switch NO/NO * or NO/NO-NC **
12 V or 24 V (optional with NAMUR)
Mechanical characteristics
Actuation force: approx. 4.5 N (Soft (long travel) haptics) *
approx. 6.5 N (Firm (short travel) haptics) **
Overload: 250 N
Mechanical lifetime: up to 250 000 cycles of operation
Electrical characteristics
Operating voltage range: 8-18 VDC (12 V variant)
18-32 VDC (24 V variant)
Maximal switching current: 50 mA (Total Power of 1 VA not be exceeded)
Minimal switching current: 1 mA (Wetting Current)
Maximal switching power: 1 VA (without Namur)
0.25 VA (with Namur)
Maximal switching voltage: 32 VDC
Contact resistance: <10 Ω (without Namur)
106 Ω-118 Ω (with Namur)
Illumination
LED symbol illumination
ocolour: White acc. CIE 1931,
chromaticity coordinates P (x, y) on request
Red (hazard warning version)
λdom ~ 633 nm
oLuminance: White: approx. 20 cd/m² at 28 VDC or 14 VDC,
23 °C ± 2 K
Red: approx. 90 cd/m² at 28 VDC or 14 VDC,
23 °C ± 2 K
LED indicator illumination
ocolour: Red λdom ~ 633 nm
oLuminance: approx. 200 cd/m² at 28 VDC or 14 VDC,
23 °C ± 2 K
Symbols
Standard: Symbols in accordance with ISO 7000
Customized: Customer-specific symbols on request
* NO/NO only as soft haptic version; **
NO/NO-NC only as firm haptic version

www.eao.com 11
Connections/interfaces
Connector: TE 8P-1745000-3 or 8P-1745000-4 –8 pole,
Male
Interface: hardwired interface with separate lines for
symbol illumination and each indicator
illumination
Ambient conditions
Operating temperature: -40 °C … +85 °C
Storage temperature: -40 °C … +85 °C
Protection degree
IP5K4 protection (front: IP5K4; back: IP20 without plugged connector). Protection degree for
horizontal assembled situation in responsibility of customer application. The installation
space of the switch must provide a drain for liquids on the plug contact side in order to
protect the switch from being flooded.
Attention
The protection degree of up to IP5K4 to be achieved, depends on the front
panel and type of mounting used, and must be ensured by the customer.
Flooding might cause Risk of injury
Damage to the pushbutton/indicator, connector

www.eao.com 12
5. Scope of delivery
1 Universal Switch or Indicator, with TE-8 pole connector
Note
The Symbols (ISO 7000 or customised) must be defined separately within
the configuration of the switch.
6. Storage
See 4 Technical specification.
Note
Avoid abrupt changes in the storage temperature of the Pushbutton or
indicator as well as condensing environment.
Damage to the pushbutton or indicator
Do not expose the open contacts of the unprotected connector to
condensing air humidity.
Damage to the pushbutton or indicator
Corrosion of electrical contacts
Check the delivery immediately after unpacking regarding completeness
and transport damages.
If any damage or incompleteness is found, please contact the supplier
immediately.

www.eao.com 13
7. Mechanical installation/ mounting
Installation in a panel by means of retaining clamps.
See drawing “1901940001 product information”
The switches are designed for one-time assembly. During disassembly, there is a risk of
abrasion or breakage of the mounting clips. This can lead to a reduction in the holding force.
We therefore recommend replacing the Universal Switch after it has been mounted/
dismounted and damages to the mounting clips are detectable to not endanger safe and tight
fit.
The Switch/Indicator must be pressed evenly into the panel of the customer application,
avoiding tilting. Do not overload the actuating surface of the cap, otherwise the mechanics and
electronics inside the button/indicator may be damaged. While assembling take care of ESD
protected environment and tools.
Note
−Damage to the buttons
−Damage to the tight fixation
The plug-in connection must be established with a suitable connector. The plug-in connection
can alternatively be established before or after mounting the Universal Switch into the panel.
Use outside closed vehicles
The S09 Universal Switch is designed for vehicle interiors, protected from environmental
influences. The product is validated in accordance with ISO16750 and designed for this
application scenario. Any other use is at the user´s own risk and out of warranty of EAO.
8. Electrical installation and pinning
Electrical installation shall only be done when the system is under no power.
Connection of the Pushbuttons is realized with the following components of Tyco Electronics:
Tyco-Art.-No. for housing: 1745000-3, 1745000-4
Tyco-Art.-No. for cage: 965601-2
Tyco-Art.-No. for contacts: 5-963715-1 (0.5 –0.75 mm²), 5-928999-1 (0.25 –0.35 mm²)
Please refer to “1901940001 product information”.
Following Picture 1 shows the internal electrical circuit of the Pushbutton. To reduce power
dissipation and to prevent overheating of the Pushbutton, variants for 12 V (supply voltage
range: 8 V –16 V) are available. The pinning of the connector of these voltage variants are
identically.

www.eao.com 14
three indicators, backlight
and switching element standard
one indicator, backlight
and switching element standard
backlight
and switching element standard
three indicators, backlight
standard
one indicator, backlight
standard
backlight
standard

www.eao.com 15
Three indicators, backlight and switching
element with NAMUR circuit
One indicator, backligth and switching
element with NAMUR circuit
Backlight and switching element with
NAMUR circuit
Three indicators, backlight with coding
resistor
One indicator, backlight with coding resistor
Backlight with coding resistor

www.eao.com 16
One indicator, backlight and switching
elements with NAMUR indicator
Backlight and switching elements with
NAMUR circuit
One indicator, backlight and switching
elements without NAMUR circuit
Backlight and switching elements without
NAMUR circuit
One indicator, backlight and switching
elements with NAMUR circuit
Backlight and switching elements with
NAMUR circuit

www.eao.com 17
One indicator, backlight and switching
elements without NAMUR circuit
Backlight and switching elements without
NAMUR circuit
Picture 1: Internal electrical circuit of the Series 09 Universal Switch.
The symbol and functional illumination of a button uses the same ground on pin 7 of TE
1745000-x. Each functional illumination can be switched on by connecting pin 2, 4, 8 of
connector with positive power supply. The symbol illumination can be switched on by
connecting pin 3 of the connector to positive power supply.

www.eao.com 18
Internal resistor values
The values of the resistors for the buttons are:
Without Namur Circuit
Rp = not placed
Rs = 0 Ω
With Namur Circuit
Rp = 1 kΩ
Rs = 120 Ω
Furthermore, it is necessary to debounce the switches. This can be done via software or
hardware in the control unit connected to the keypad and is in customers responsibility. The
debounce time should be greater than 10ms.

www.eao.com 19
9. Typical failure modes and diagnosis option
Function Type
Failure Mode
Possible Root Cause
Diagnosis Option
Switching function
Wrong switching signal out
of specification (limits see
datasheet)
Switching system defective
Resistance Monitoring
(values see technical
specification)
Fluid ingress
Resistance Monitoring
(values see technical
specification)
No switching signal (on)
Switching system defective
Resistance Monitoring
(values see technical
specification)
Fluid ingress
Resistance Monitoring
(values see technical
specification)
No switching signal (off)
Switching system defective
Resistance Monitoring
(values see technical
specification)
Fluid ingress
Resistance Monitoring
(values see technical
specification)
Haptic function
No provision/ revenge
Button stuck
Resistance Monitoring
(values see technical
specification) as a function
of time
Backlight illumination
Nonfunctional backlight –off
although should be on
Electronic defect
Monitoring current for
symbol illumination circuit
fluid ingress
Monitoring current for
symbol illumination circuit
Nonfunctional backlight –on
although should be off
Electronic defect
Monitoring current for
symbol illumination circuit
fluid ingress
Monitoring current for
symbol illumination circuit
Indicator illumination
Nonfunctional indicator
illumination –on although
should be off
Electronic defect
Monitoring current for
symbol illumination circuit
fluid ingress
Monitoring current for
symbol illumination circuit
Nonfunctional indicator
illumination –off although
should be on
Electronic defect
Monitoring current for
symbol illumination circuit
fluid ingress
Monitoring current for
symbol illumination circuit
Assembly function
Switch cannot be mounted
Unsuitable mounting hole
(too small, sharp edges,
built-in-panel to thin)
-
Damaged locking contour
(too often disassembled,
mounting hole to small,
sharp edges, built-in-panel
to thin)/ snap hooks
damaged
-
Holding force too small
when installed
Unsuitable mounting hole
(too small, sharp edges,
bracket to thin, built-in panel
to thin)
-
Damaged locking contour
(too often disassembled,
mounting hole to small,
sharp edges, built-in-panel
to thin)/ snap hooks
damaged
-

www.eao.com 20
10. Cleaning
Cleaning the Pushbutton cap with water and commercially available soft cloths is possible. Do
not use aggressive solvents or hose cleaning.
Attention
Avoid contact with liquids on the plug contacts
Avoid excessive use of liquids like splash
Damage to the buttons
Corrosion to electrical contacts
11. Liability for quality defects
The general function of the pushbutton/indicator has been tested at the factory before delivery.
However, if errors occur despite the careful quality control, they must be reported immediately
to EAO or the dealer.
The liability for quality defects is 12 months for the delivered products. Within this period, faulty
parts, except wear parts, the pushbutton/indicator has to be returned to EAO.
Damages caused by improper use, handling or the use of force are excluded from the liability
for quality defects. Damages caused by repairs or modifications to the Pushbutton are also
excluded. EAO is exclusively responsible for repairs to the pushbutton/indicator.
Further claims cannot be asserted. Claims arising from the purchase contract remain
unaffected.
EAO is not liable for consequential damages. The right to design changes, in the sense of
product improvement, is reserved by EAO.
Emergency Situations
No special measures are required in an emergency from the point of view of the Pushbutton. Required
measures are to be evaluated by the customer on the customer application side and implemented to
the application, if necessary.