Dolphin Stm 429j User manual

USER MANUAL

STM 429J –Scavenger Transmitter Module

Patent protected:

WO98/36395, DE 100 25 561, DE 101 50 128,

WO 2004/051591, DE 103 01 678 A1, DE 10309334,

WO 04/109236, WO 05/096482, WO 02/095707,

US 6,747,573, US 7,019,241

Observe precautions! Electrostatic sensitive devices!

USER MANUAL

STM 429J –Scavenger Transmitter Module

REVISION HISTORY

The following major modifications and improvements have been made to the first version of

this document:

Major Changes

1.0

Initial version

1.1

Added marking and STM 425J.

1.2

Editorial corrections.

1.3

Changed PCB / System Drawings –STM 425J and STM 429J. Added radio certifi-

cate.

1.31

Changed helical antenna picture

2.0

Update of revision with consolidation and small corrections.

Published by EnOcean GmbH, Kolpingring 18a, 82041 Oberhaching, Germany

www.enocean.com, info@enocean.com, phone ++49 (89) 6734 6890

Important!

This information describes the type of component and shall not be considered as assured characteris-

tics. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications

are subject to change without notice. For the latest product specifications, refer to the EnOcean web-

site: http://www.enocean.com.

As far as patents or other rights of third parties are concerned, liability is only assumed for modules,

not for the described applications, processes and circuits.

EnOcean does not assume responsibility for use of modules described and limits its liability to the

replacement of modules determined to be defective due to workmanship. Devices or systems contain-

ing RF components must meet the essential requirements of the local legal authorities.

The modules must not be used in any relation with equipment that supports, directly or indirectly,

human health or life or with applications that can result in danger for people, animals or real value.

Components of the modules are considered and should be disposed of as hazardous waste. Local

government regulations are to be observed.

Packing: Please use the recycling operators known to you.

USER MANUAL

STM 429J –Scavenger Transmitter Module

TABLE OF CONTENT

1GENERAL DESCRIPTION .................................................................................4

1.1 Basic functionality .........................................................................................4

1.2 Technical data...............................................................................................4

1.3 Physical dimensions .......................................................................................5

1.4 References ...................................................................................................7

1.5 Environmental conditions ...............................................................................7

1.6 Ordering Information .....................................................................................7

2FUNCTIONAL DESCRIPTION ............................................................................8

2.1 Block diagram ...............................................................................................8

2.2 Radio telegram..............................................................................................8

2.3 Secure radio telegram....................................................................................8

2.3.1 Switching between modes ..........................................................................8

2.3.2 Encrypted communication –enhanced security mode .....................................9

2.3.3 Security Teach-In –enhanced security mode ................................................9

2.3.3.1 PSK Security Teach-in - optional ......................................................... 10

2.4 Transmit timing........................................................................................... 10

2.5 Energy consumption .................................................................................... 11

3APPLICATIONS INFORMATION....................................................................... 12

3.1 Antenna Details........................................................................................... 12

3.2 Transmission range ..................................................................................... 13

3.3 Connecting an external backup battery .......................................................... 13

3.4 Mounting 429J into a housing........................................................................ 14

3.5 PSK Labelling .............................................................................................. 15

3.5.1 Included Information: .............................................................................. 15

3.5.2 QR-Code Specification .............................................................................. 15

4AGENCY CERTIFICATIONS ............................................................................ 16

5Label Information ........................................................................................ 17

USER MANUAL

STM 429J –Scavenger Transmitter Module

1GENERAL DESCRIPTION

1.1 Basic functionality

The radio transmitter modules and 429J from EnOcean

enable the implementation of a wireless magnet contact

sensor.

nance-free. An integrated energy store allows operation

for several days even in total darkness.

Key applications are window and door sensors.

STM 429J supervise an integrated reed contact and re-

port every status change immediately (open <>

closed). In addition a sign of life signal is transmitted

every 20-30 minutes.

A LRN button and a TX indicator LED are pre-installed on the PCB. On STM 429J they are

oriented upwards. When the LRN button is pressed then a special teach-in signal will be

sent.

STM 429J operate at 928.35MHz using FSK modulation.

STM 429J in enhanced mode provides enhanced security features with encrypted communi-

cation.

Features with built-in firmware

Pre-installed solar cell

On-board energy storage and charging circuit

On-board LRN button (operated from above on STM 429J)

On-board TX indicator LED (pointing upwards on STM 429J)

On-board reed contact

1.2 Technical data

Antenna

Pre-installed helical antenna installed

Frequency

928.35MHz

Data rate/Modulation type

125 kbps / FSK

Radiated Output Power

Typ. 0dBm

Power Supply

Pre-installed solar cell

Illumination 50-100000 lux

Initial operation time in

darkness @ 25°C

typ. 6 days, min 90 hours

if energy storage fully charged

transmission of telegram every 25 min on average1

Operation start up time with empty

energy store

typ. 2.5 min @ 400 lux / 25°C

incandescent or fluorescent light

Reed contact

1x internal, Meder MK23-90-BV14496 or MK01-I

Radio Regulations

ARIB STD-T108

Security Level Format

24-bit RLC, No RLC tx, 4-byte CMAC, VAES encryption

1Full performance of the PAS614L energy storage is achieved after several days of opera-

tion (up to two weeks) at good illumination level. Performance degrades over life time, es-

pecially if energy storage is exposed to higher temperatures. Each 10 K drop in tempera-

ture doubles the expected life span.

USER MANUAL

STM 429J –Scavenger Transmitter Module

1.3 Physical dimensions

PCB drawing STM 429J

PCB dimensions 43±0.2 x 16±0.3 x 1±0.1 mm

Module height 6 mm

Weight 5.2 g

USER MANUAL

STM 429J –Scavenger Transmitter Module

System drawing STM 429J

USER MANUAL

STM 429J –Scavenger Transmitter Module

1.4 References

[1] Security of EnOcean Radio Networks - http://www.enocean.com/en/security-

specification/

[2] Dolphin V4 Core Description - http://www.enocean.com/dolphin-v4-core-

description/

[3] Dolphin V4 API - http://www.enocean.com/en/enocean-software/

[4] AN509 Explanation of EnOcean security in applications -

http://www.enocean.com/en/application-notes/

[5] AN510 Adding Security to EnOcean Receivers -

http://www.enocean.com/en/application-notes/

[6] AN511 Advanced security in self-powered wireless applications -

http://www.enocean.com/en/application-notes/

[7] Microchip EEPROM Memory - www.microchip.com/serialeeprom/

[8] EnOcean Equipment Profiles - http://www.enocean-alliance.org/eep/

1.5 Environmental conditions

Operating temperature -20 °C … +60 °C

Storage temperature -20 °C … +60 °C, recommended2: +10 °C…+30 °C, <60%r.h.

Shelf life (in absolute darkness) 36 months after delivery3

Humidity 0% … 93% r.h., non-condensing

1.6 Ordering Information

Type

Ordering Code

STM 429J

S3061-D429

2Recommended for maximum life of energy storage capacitor

3Deep discharge of the PAS614L energy storage leads to degradation of performance.

Therefore products have to be taken into operation after 36 months. At least the PAS614L

needs to be recharged to 2.1 V.

The module shall not be placed on conductive materials, to prevent discharge of

the internal energy storages3. Even materials such as conductive foam (ESD pro-

tection) may have negative impact.

USER MANUAL

STM 429J –Scavenger Transmitter Module

2FUNCTIONAL DESCRIPTION

2.1 Block diagram

A change of the reed contact status or pushing the LRN button will wake the transmitter

unit to send a radio telegram immediately (reed contact position, LRN push button status,

unique 32-bit sensor ID (at profile teach-in 48 bit ID), checksum).

In addition a redundant retransmission signal is sent to announce the contact status even

in case of no input signal changes. This signal transmitted every 20-30 min, affected at

random. The transmit indicator LED flashes briefly at every radio transmission.

Between the wake-up phases, the device is in sleep mode for minimum power consump-

tion.

2.2 Radio telegram

429J transmits a radio telegram according to EnOcean Equipment Profile

EEP D5-00-01 as defined in the EnOcean Equipment Profiles specification.

2.3 Secure radio telegram

The STM 429J can be operated in:

Standard mode –no enhanced security is used. This is the common operation mode,

originally available. This is also the default factory mode.

Security mode –communication is protected by enhanced security features. This

mode was added later in module evolution.

2.3.1 Switching between modes

STM 429J can be switched from normal mode to secure mode and vice versa by long press

of the LRN Button (Wake 1).

The behaviour of the LRN button is following:

USER MANUAL

STM 429J –Scavenger Transmitter Module

1. Button is pressed –LED flashes briefly Teach-in is performed according to the actual

mode.

2. Button is hold

a. If released in period < 10 seconds then actual mode is kept. No further ac-

tion.

b. If hold for at least 10 seconds then the actual mode is changed (standard ->

secure or secure -> standard). LED flashes briefly. Teach-in is performed ac-

cording to the actual (new) mode.

3. Button is released –no action.

Upon entry into secure mode, a secure teach-in telegram is sent by STM 429J.

Mode change features can be suppressed by configuration flag. If flag set module

will not enter secure mode after long press, but stay in standard mode. By default

mode change feature is enabled.

Before changing the operating mode please make sure to clear the device from all

receivers which have been taught to work with this device before. Otherwise the

receiver will ignore the telegrams and the application will not work.

The flag for actual mode itself is stored in non-volatile memory. After power down

reset the previous selected mode is active. Therefore mode change is limited to 50

times. In normal application scenario only very few are required.

The factory delivery mode of the STM 429J is standard –not encrypted. This mode is com-

mon mode originally available. Secure mode was added in later product upgrades.

The mode change feature can be suppressed by a configuration parameter. By default

mode change is enabled.

2.3.2 Encrypted communication –enhanced security mode

In Enhanced mode the data link (DL) content is always protected with advanced security

features. Normal operation DL and also Teach-in DL are protected in the same way. The

security features used are configured by the Security Level format - SLF. This parameter is

set by default to the highest possible level:

24-bit RLC,

No RLC tx,

4-byte CMAC,

VAES encryption

To add security features to the communication the Normal operation DL and Teach-in DL

are encapsulated into a secured telegram. The data content of the telegram is not changed.

Please refer to the EnOcean Security Specification for details.

2.3.3 Security Teach-In –enhanced security mode

To enable security communication the STM 429J has to send a security teach-in telegram to

the other communication partner and so inform him about the used security profile, keys

and initial RLC. The security teach-in has to take place before any other communication can

be executed (profile teach-in included). To trigger the transmission of the teach-in telegram

LRN button is pressed. The security teach-in telegram is transmitted before the profile

USER MANUAL

STM 429J –Scavenger Transmitter Module

teach-in. The following profile teach-in telegram is already protected by advanced security

features.

The process of sending security teach-in telegram and profile teach-in telegram is triggered

by once pressing the LRN button.

The behaviour of the LRN button in enhanced mode is following:

1. Button is pressed

2. Security teach-in is send.

3. Profile teach-in is send.

2.3.3.1 PSK Security Teach-in - optional

The Security Teach-in telegram carries the information of KEY and RLC. This information is

either sent as plain text (as is) or it is protected by the pre-shared key - PSK. The PSK

must be in printed on the transmitting device. To use PSK teach-in, the PSK must be read

by the end-user and entered into the other communication partner. For this purpose the

EnOcean radio interface cannot be used. The PSK can be entered trough a user interface or

semi-automated by a code reader.

For details on the PSK Teach-in please refer to the EnOcean Security Speification.

PSK feature is disabled by default. To enable PSK feature the execute configuration in Dol-

phin Suite.

2.4 Transmit timing

The setup of the transmission timing allows avoiding possible collisions with data packages

of other EnOcean transmitters as well as disturbances from the environment. With each

transmission cycle, 3 identical subtelegrams are transmitted within 25 ms. The transmis-

sion of a subtelegram lasts approximately 1 ms. The delay between the three transmission

bursts is affected at random.

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