ATIM LTEM User manual

ATIM Radiocommunications
Chemin des Guillets
38250 Villard de Lans
France
www.atim.com
[email protected]
[phone]
Atim Cloud Wireless
Multi sensor
LTEM
User's guide
Models concerned:
ACW/LTEM-CNT
ACW/LTEM-DA
ACW/LTEM-T

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ATIM_ACW-LTEM_UG_EN_V1.0
Table of contents
VERSION HISTORY OF THIS DOCUMENT.............................................................................................................................................. 3
DISCLAIMER OF LIABILITY .................................................................................................................................................................... 3
TRADEMARKS AND COPYRIGHTS......................................................................................................................................................... 3
DECLARATION OF CONFORMITY ......................................................................................................................................................... 4
ENVIRONMENTAL RECOMMENDATIONS ............................................................................................................................................ 4
A.EXPLOSIVE ATMOSPHERE ...................................................................................................................................................................... 4
B.ENVIRONMENT.................................................................................................................................................................................... 4
TECHNICAL DATA................................................................................................................................................................................. 6
PRODUCT ........................................................................................................................................................................................... 6
DIMENSIONS ....................................................................................................................................................................................... 7
PRODUCT COMMISSIONING................................................................................................................................................................ 8
SENSOR CONNECTION........................................................................................................................................................................... 8
CONNECTION EXAMPLES....................................................................................................................................................................... 9
OPERATING MODE ............................................................................................................................................................................... 9
PRODUCT COMMISSIONING................................................................................................................................................................. 10
FRAME FORMAT................................................................................................................................................................................ 11
INTEGRATION.................................................................................................................................................................................... 12
ATIM CLOUD WIRELESS PLATFORM..................................................................................................................................................... 12
Analog sensor.................................................................................................................................................................................... 13
Pulse sensor....................................................................................................................................................................................... 13
LIVE OBJECTS PLATFORM (ORANGE)..................................................................................................................................................... 16
CONFIGURATION............................................................................................................................................................................... 17
DOWNLINK....................................................................................................................................................................................... 17
CONFIGURATOR ................................................................................................................................................................................ 19
TECHNICAL SUPPORT ........................................................................................................................................................................ 20
APPENDIX .......................................................................................................................................................................................... 21

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ATIM_ACW-LTEM_UG_EN_V1.0
Version history of this document
Version
Date
Description
Author
1.0
10/06/2020
Document creation
JA
Disclaimer of liability
The information contained in this document is subject to change without notice and does not represent a commitment
on the part of ATIM.
Trademarks and copyrights
ATIM, ACW ATIM Cloud Wireless®, ARM Advanced Radio Modem® are registered trademarks of ATIM Sarl in France.
Other trademarks mentioned in this document are the property of their respective owners.

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ATIM_ACW-LTEM_UG_EN_V1.0
Declaration of conformity
All ACW Atim Cloud Wireless® products comply with the regulatory requirements of R&TTE Directive 1999/5/EC
Article 3 :
1 SAFETY (Article 3.1a of Directive 1999/5/EC)
NF EN60950-1 Ed. 2006/A1:2010/A11:2009/A12:2011 (health)
EN62479: 2010 (power <20mW) or EN62311:2008 (power > 20mW)
2 Electromagnetic compatibility (Article 3.1b of Directive 1999/5/EC)
EN 301489-3 v1.4.1, EN 301489-1 V1.9.2
3 Efficient use of the radio frequency spectrum (Article 3.2 of Directive 1999/5/EC)
ETSI EN300 220-2 v2.4.1 and EN300 220-1 v2.4.1
Environmental recommendations
a. Explosive atmosphere
With the exception of the ACW-ATEX range, do not use ACW radio modems in the presence of flammable gases or
fumes. Use of the equipment in this environment constitutes a hazard.
b. Environment
Observe product storage and operating temperature ranges. Failure to comply with these instructions could disrupt
operation and even damage the equipment.
Follow the precautions and instructions below to ensure your safety and that of your environment, and to prevent
damage to your equipment.

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ATIM_ACW-LTEM_UG_EN_V1.0
This symbol on the product or its packaging indicates that this product must not be disposed of with your other
household waste. Instead, it is your responsibility to dispose of your waste by taking it to a designated collection
point for the recycling of electrical and electronic appliances. Separate collection and recycling of your waste at
the point of disposal will help conserve natural resources and ensure recycling that respects the environment
and human health. For more information on your nearest recycling center, contact your local town hall, your
household waste disposal service or the store where you purchased the product.
General danger :- If the instructions are not followed, there is a risk of damage to equipment.
Electrical hazard : If the instructions are not followed, there is a risk of electric shock and personal injury.
WARNING : do not install near sources of heat or moisture.
WARNING : for your own safety, before carrying out any technical work on the equipment, it must be
disconnected from the mains.
WARNING : do not install near sources of heat or moisture.

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ATIM_ACW-LTEM_UG_EN_V1.0
Technical data
Product
Dimensions
100 x 100 x 35 mm
Antenna
Integrated (patch type)
Temperature
0°C to +50°C (Operation)
0°C to +30°C (storage)
Mounting
Wall
Box
IP 66**
Power supply
2 x Lithium A batteries [ER18505M] [ER18505M
Poids
220 g
Frequency
800 –1800 MHz
Power
21 dBm (Class 5 type)
Flow
LTE-M : 1Mbit bits/s
Emission current
LTE-M: 400 mA max - 200 mA continuous
Sleep mode
30 µA*
* Standby power consumption may vary depending on the state of charge of the super capacitor.
** Opening and closing the modem casing and connecting the sensor may alter the protection rating.

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ATIM_ACW-LTEM_UG_EN_V1.0
Dimensions
Minimum cable diameter in cable gland : 3mm
Maximum cable diameter in cable gland : 7mm
35
83,5
4 x Ø4
100
100
83,5

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ATIM_ACW-LTEM_UG_EN_V1.0
Product commissioning
Sensor connection
•If the LTE-M modem is supplied without a sensor, it can be connected to terminal block J2 on the circuit board.
•The sensor cable must first be inserted into the housing via the cable gland. Ensure that the cable runs to the
left of the terminal block, so as not to obstruct the passage of the battery when closing the housing.
•The cable gland is limited to a cable diameter of between 3 and 7mm.
•The modem's IP rating cannot be guaranteed if the sensor is not connected during manufacture.
VDC
GND
AN
DI1
DI2
GND
VPP
1W
Terminal
Description
VDC
External power supply (+5VDC or +12VDC)
GND
Ground
AN
Analog measurement input
DI1
Digital input 1
DI2
Digital input 2
GND
Ground
Terminal block
Cable gland

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ATIM_ACW-LTEM_UG_EN_V1.0
VPP
1WIRE power supply
1W
1wire data
Connection examples
LEFOO T3000 0-5V]
level sensor
[DIEHL IZAR] Pulse I water flow
sensor
Temperature sensor [DS18B20
1wire] [DS18B20 1wire
Operating mode
If the magnet is held for more than 2 seconds on the location indicated by the QR code, the operating mode will change
according to the order defined below :
To find out the status of the product, simply pass a magnet briefly (<2 sec) over the above location, causing the LED to
light up in the corresponding color.
OFF mode : Modem off (default mode)
ON mode : The modem is activated and sends MQTT data frames
CONFIG mode : The modem connects to the configuration server
Magnet

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ATIM_ACW-LTEM_UG_EN_V1.0
Once the mode has been changed, the modem processes an associated function. The LED then lights up continuously
while the function is being processed, for example :
•In ON mode, the modem starts sending a life frame before going into standby mode until the next frame is
sent (PSM for Power Sleep Mode).
•In CONFIG mode, the module connects to a server to download the latest configuration.
When the modem is processing one of these functions (green LED on), it is impossible to change modes.
Product commissioning
The modem is delivered in OFF mode. To switch it on, move the magnet until you see the GREEN LED (ON mode).
The modem then connects to the LTE-M network and the remote MQTT broker, retrieves any configuration (MQTT
subscribe) and sends a message (MQTT publish), before disconnecting and registering with PSM.
When the modem is properly connected, the LED flashes and gives an indication of the strength of the signal received
:
i. 4x times in GREEN if RSSI > -50dBm
ii. 4x times in YELLOW if RSSI is between -60dBm and -80dBm
iii. 4x times in ORANGE if RSSI < -60dBm
If a step is not carried out correctly, the LED flashes RED:
i. 3x if battery voltage is too low (below 3V)
ii. 4x times if network connection is impossible
iii. 5x times if the MQTT broker cannot be reached
iv. 6x times if the modem fails to reach PSM mode
In all four error cases, the start-up phase is considered incomplete, the modem automatically switches to OFF mode
and the RED LED remains lit until the magnet is used.
Start-up algorithm

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ATIM_ACW-LTEM_UG_EN_V1.0
Frame format
When the modem is in ON mode, it operates in PSM (Power Sleep Mode), connecting to the network at regular
intervals to send MQTT frames.
Between two connections, the modem is in standby mode to minimize power consumption.
The period between two transmissions (T3412) is adjustable.
The graph below shows the consumption curve for three network connections :
Blue areas represent data transmission periods, the most power-hungry periods (150mA average).
Gray areas represent data reception periods (40mA average).
The green zones represent standby periods, which consume the least power (around 30uA).
In addition, the modem takes regular sensor readings. The period between two readings is adjustable.
Each reading is stored in a table, which is then sent in a frame when the modem is connected to the network.
The size of the table makes it possible to store and send the last 100 readings.
Analog sensor
The raw value [0-4095] is stored directly in the reading table.
Case of a pulse sensor
The current index value is sent to a separate field in the table. Due to the large size of the index (up to
4,294,967,296), only index differences are stored in the table.
Case of a DS18B20 temperature sensor
The temperature value in degrees Celsius, with 1 decimal digit, is stored in the table.

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Integration
When the modem is connected to the network, it publishes MQTT requests to an external broker.
To enable connection to the broker, all MQTT identifiers and any TLS security certificates must be set up on the
modem.
Two integrations are currently available:
1. ATIM Cloud Wireless® platform
2. Live Objects platform.
ATIM Cloud Wireless platform
When ACW integration is selected, the life frame format is as follows:
{
"IMEI":"861340040029330",
“RSRP”:-115,
“RSRQ”:-16,
"RSSI":-66,
"SINR":11,
"VOLTAGE":3437,
"FPERIOD":4,
"MPERIOD":10,
"CNT":1
}
The IMEI number identifies the modem.
RSSI (received signal strength indicator) is a signal strength indicator.
SINR (signal noise ratio) is the signal-to-noise ratio.
VOLTAGE is the last battery voltage measured in mV.
FPERIOD is the period between two frames in minutes.
MPERIOD the period between two measurements in minutes.
CNT is a counter incremented with each life or reading frame.

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ATIM_ACW-LTEM_UG_EN_V1.0
The format of statement frames is as follows:
Analog sensor
{
"CNT":2,
"MPERIOD":10,
"TAB":
[
440,431,441,439,429,440,431,430,429,442,445,431,435,445,431,436,433,447,
435,441,436,445,433,440,433,430,435,431,438,440,441,431,432,443,429,434,
427,439,435,431,431,433,447,433,440,444,430,442,444,433,441,429,439,435,
437,440,444,437,427,432,432,440,441,437,439,445,432,444,431,429,433,447,
435,436,432,440,437,434,445,435,447,436,427,431,431,431,435,432,430,433,
439,439,432,448,446,439,435,430,445,433
]
}
Pulse sensor
{
"CNT":2,
"MPERIOD":10,
"IDX":183,
"TAB":
[
0,0,7,0,0,0,5,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
]
}

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ATIM_ACW-LTEM_UG_EN_V1.0
DS18B20 temperature sensor
{
"CNT":2,
"MPERIOD":10,
"IDX":183,
"TAB":
[
18.2,17.5,17.6,17.6,17.5,17.5,17.5,17.5,17.4,17.4,17.5,17.5,17.4,17.4,
17.4,17.4,17.4,17.4,17.3,17.3,17.3,17.3,17.3,17.3,17.3,17.3,17.3,17.3,
17.3,17.3,17.3,17.3,17.3,17.3,17.3,17.3,17.3,17.4,17.3,17.4,17.4,17.4,
17.4,17.4,17.4,17.4,17.4,17.4,17.4,17.4,17.4,17.5,17.5,17.5,17.5,17.5,
17.5,17.5,17.5,17.5,17.5,17.5,17.5,17.5,17.5,17.5,17.6,17.6,17.6,17.6,
17.6,17.6,17.6,17.6,17.6,17.6,17.6,17.6,17.6,17.6,17.6,17.7,17.7,17.7,
17.7,17.7,17.7,17.8,17.8,17.8,17.8,17.8,17.8,17.8,17.8,17.8,17.8,17.8,
17.8,17.8
]
}
The CNT field is the frame counter, incremented each time a reading or life frame is sent.
The MPERIOD field is the period between two measurements in minutes.
The TAB table is filled in each time a measurement is taken.
The IDX field is the current index or pulse counter.

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ATIM_ACW-LTEM_UG_EN_V1.0
The first "Device" page of the ACW platform displays the latest readings:
In addition, the top-left frame shows the latest RSRP, RSSI, SINR and battery voltage values.
The second "Index Change" page displays raw frames in JSON format :

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Live Objects platform (Orange)
When Liveojects integration is preferred, the format of life frames published in MQTT is as follows:
{
"model":"atim-sample",
"value":
{
"IMEI":"861340040029330",
“RSRP”:-115,
“RSRQ”:-16,
"RSSI":-66,
"SINR":11,
"VOLTAGE":3437,
"FPERIOD":4,
"MPERIOD":10,
"CNT":1
}
}
An additional model parameter is then available to identify modems under Live Objects.
Under the platform it is possible to view published MQTT frames in the Data messages (Uplink) menu that
correspond to the content of the "value" field in the above frame.

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ATIM_ACW-LTEM_UG_EN_V1.0
Configuration
Modem functional parameters can be modified via Downlink from the ATIM Cloud Wireless or Live Objects platforms.
On the other hand, MQTT identification and APN parameters require the use of the ATIM configurator.
On both platforms, configuration changes will take effect the next time the modem sends a frame.
Downlink
On the first device page of the ACW platform, the Measure Period in minutes and the Frame Period in hours can be
adjusted:

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ATIM_ACW-LTEM_UG_EN_V1.0
On the Live Objects platform, it is also possible to edit the period for measuring and sending frames via the
Commands menu (Downlink).
To do this, fill in the fields as shown in the example below, where the requested sending period is 5 hours:

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Configurator
When the ATIM configurator is launched, the program first checks the Internet connection in order to connect to the
remote configuration server.
If the connection with the server has been established, the identifiers of the modem to be configured (IMEI, etc.) can
be entered before clicking on the download arrow. .
The current parameters are then displayed in the various fields :
Identifiers can then be edited and, if required, certificates can be loaded to secure the MQTT connection.
The parameters can then be updated by clicking on Upload. .

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ATIM_ACW-LTEM_UG_EN_V1.0
Technical support
For any information or technical question, please open a ticket on our dedicated support web page.