ATIM ARM-SE User manual

www.atim.com
[email protected]
[phone]
ATIM Radiocommunications
Chemin des Guillets
38250 Villard de Lans
France
Advanced Radio Modules
Serial / Ethernet radio Modem
ARM-SE
User Guide
Concerned model:
ARM/868-SE

1
ATIM_ARM-SE_UG_EN_V2.5
TABLE OF CONTENTS
Document version history....................................................................................................................... 3
Disclaimer................................................................................................................................................ 3
Trademarks and copyright....................................................................................................................... 3
Declaration of compliance ...................................................................................................................... 4
Environmental recommendations........................................................................................................... 4
Explosive atmosphere ......................................................................................................................... 4
Environment........................................................................................................................................ 4
Radio.................................................................................................................................................... 5
Generalities ............................................................................................................................................. 6
Radio regulation ...................................................................................................................................... 7
Context ................................................................................................................................................ 7
Information on the regulation of conformity...................................................................................... 7
1. Technical characteristics.................................................................................................................. 9
2. Installation ..................................................................................................................................... 11
a) Warnings.................................................................................................................................... 11
b) Antenna..................................................................................................................................... 13
c) Mounting................................................................................................................................... 14
i. On cabinet .............................................................................................................................. 14
ii. Exterior antenna (mast)......................................................................................................... 15
d) Radiation pattern ...................................................................................................................... 16
e) Alignment of the antenna ......................................................................................................... 18
f) Radio channel selection............................................................................................................. 19
3. Connections and links.................................................................................................................... 20
a) Power supply............................................................................................................................. 21
b) Installation instructions............................................................................................................. 21
c) Ethernet link.............................................................................................................................. 22
d) Serial link RS232 ........................................................................................................................ 22
e) Serial link RS485 ........................................................................................................................ 23
f) Dry contacts............................................................................................................................... 24
4. Configuration................................................................................................................................. 25
a) Configuration by embedded web pages ............................................................................. 25
b) Homepage and password ................................................................................................... 27
5. Operating mode............................................................................................................................. 28
a) Serie.................................................................................................................................... 28

2
ATIM_ARM-SE_UG_EN_V2.5
i. Setup....................................................................................................................................... 29
b) Repeater ............................................................................................................................. 31
i. Synoptic .................................................................................................................................. 31
ii. Filtering.................................................................................................................................. 32
iii. Limitations ............................................................................................................................ 32
iv. Setup..................................................................................................................................... 33
c) Gateway Modbus ................................................................................................................ 34
i. Local target............................................................................................................................. 35
ii. Serial link target..................................................................................................................... 35
iii. Target on remote radio modem ........................................................................................... 35
iv. Settings ................................................................................................................................. 36
6. Firmware update ........................................................................................................................... 39
7. Update of embedded web pages .................................................................................................. 41
8. Save parameters and return to factory settings............................................................................ 43
9. Radio frequency table.................................................................................................................... 44

3
ATIM_ARM-SE_UG_EN_V2.5
Document version history
Disclaimer
The information contained in this document is subject to change without warning and does not
represent a commitment on the part of ATIM radiocommunications. ATIM radiocommunications
provides this document ‘as-is’ with no warranty of any kind, express or implied, including but not
limited to implied warranties of merchantability or fitness for a particular purpose. ATIM
radiocommunications may make changes and/or improvements to this manual or to the product(s) or
program(s) described in this manual, at any time.
Trademarks and copyright
ATIM radiocommunications®, ACW ATIM Cloud Wireless® and ARM Advanced Radio Modem® are
registered trademarks of ATIM SARL in France. The other trademarks mentioned in this document are
the property of their respective owners.
Version
Date
Description
Author
2.2
22/10/2015
Creation of the User Guide
TL
2.3
05/12/2019
Datalogging option deletion
MD

4
ATIM_ARM-SE_UG_EN_V2.5
Declaration of compliance
All ACW Atim Cloud Wireless® products comply with the regulatory requirements of the R&TTE
Directive (1999/5/EC), article 3:
1 SAFETY (Article 3.1a of the 1999/5/EC Directive)
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 the 1999/5/EC Directive)
EN 301489-3 v1.4.1, EN 301489-1 V1.9.2
3 Efficient use of the radio frequency spectrum (Art.3.2 of the 1999/5/EC Directive)
ETSI EN300 220-2 v2.4.1 and EN300 220-1 v2.4.1
Environmental recommendations
Explosive atmosphere
Except for the ACW-ATEX line specifically intended for this purpose, do not use ARM radio modems in
the presence of flammable gases or fumes. Using the equipment in such an environment constitutes a
safety hazard.
Environment
Respect the temperature ranges for storage and operation of all products. Failing to respect these
guidelines could disrupt device operation or damage the equipment. ACW products in IP65 water- and
dust-resistant housings may be placed outdoors, but must not, under any circumstances, be
submerged.
Follow the instructions and warnings provided below to ensure your own safety and that of the
environment and to protect your device from any potential damage.

5
ATIM_ARM-SE_UG_EN_V2.5
General hazard –Failure to follow the instructions presents a risk of equipment damage.
Electrical hazard –Failure to follow the instructions presents a risk of electrocution and physical injury.
Direct-current symbol
WARNING: do not install this equipment near any source of heat or any source of humidity.
WARNING: for your safety, it is essential that this equipment be switched off and disconnected from mains power
before carrying out any technical operation on it.
WARNING: the safe operation of this product is ensured only when it is operated in accordance with its intended
use. Maintenance may only be performed by qualified personnel.
Waste disposal by users in private households within the European Union. This symbol appears
on a product or its packaging to indicate that the product may not be discarded with another
household waste. Rather, it is your responsibility to dispose of this product by bringing it to a
designated collection point for the recycling of electrical and electronic devices. Collection and
recycling waste separately at the time you dispose of it helps to conserve natural resources and
ensure a recycling process that respects human health and the environment. For more
information on the recycling centre closest to your home, contact your closest local government
office, your local waste management service or the business from which you purchased the
product.
Radio
Modems in the ARM line are radio-communication modems that use the ISM (industrial, scientific and
medical) bands, which may be used freely (at no cost and with no authorization required) for industrial,
scientific and medical applications.

6
ATIM_ARM-SE_UG_EN_V2.5
Generalities
ARM radio modems are manufactured in accordance with the current state of the art and in
compliance with the rules of recognized safety and in force in the labor code.
General safety requirements must be observed during all phases of equipment use and repair. Failure
to comply with the rules or warnings in this manual is contrary to the safe use and normal operation
requirements of ARM radio modems.
As a user of this product, it is necessary to strictly follow all warnings and requirements in your work
environment to perform safe operations on ARM radio modems.
Be sure to read this entire manual before operating an ARM-SE radio modem. This manual is part of
the ARMSE radio modem and comes with it. The rules for the prevention of risks and accidents as well
as the safety rules must be respected!
1. The purpose of a radio modem is to replace a wired link by establishing H.F. (High Frequency)
communication between 2 or more remote points.
2. The A.R.M. Radio Modem responds to strong demand in this area by offering excellent
performance. It remains open to many expansion and configuration possibilities as well as a
choice of the frequency band used
3. A.R.M. can intervene in multiple situations such as remote control,monitoring, telemetry, data
transfer, etc. It can be used wherever the wiring is delicate and expensive (dams, isolated
weather stations, ski slopes, ...), as well as in mobile applications (vehicles, Conveyors, cranes,
cranes, robotics, etc.).
4. Its versatility allows it to either convey information from one point to another, or to manage
different types of input outputs over long distances. Its modularity allows it to add standard
input / output modules or even specific modules on request.

7
ATIM_ARM-SE_UG_EN_V2.5
Radio regulation
Context
Modems of the ARM and ACW family are part of radiocommunications using ISM (Medical Scientific
Industry) bands which can be used freely (free of charge and without authorization) for industrial,
scientific and medical applications.
As a result, regulation at the national and global level is carried out with the aim of controlling the
problems caused by interference and saturation of the frequency bands. At the national level,
legislation is provided by both ANFR (National Frequency Agency) and ART (Telecommunications
Regulatory Authority). ANFR, created in 1996, develops and publishes the national frequency band
distribution table based on the radiocommunication regulations developed within the ITU.
Concerning the field of civil applications, the conditions of use are fixed by the ART which decides the
allocation of the frequencies according to a planning. The planning consists of a division by region in
which a division by band is established. Then the dedicated radiocommunication services and the list
of operators or operators are defined. A distinction by category is made, there are the ministries
(Defense, Research, Interior), the ART and the CSA.
Information on the regulation of conformity
The use of radio frequencies is limited by national regulations. The radio modules are designed to
comply with the EU Radio & Telecommunications Terminal Equipment Directive 1999/5 / EC and can
be used freely in the European Union. Nevertheless, restrictions on RF power or duty cycle may apply.
The ARM-N8 is a radio module designed to be incorporated into other products (also called "Finished
Products"). According to the R & TTE Directive, the declaration of conformity with
essential requirements of the R & TTE Directive are the responsibility of the manufacturer
of the final product. A declaration of conformity for the radio module is available at ATIM on request.
Applicable regulatory requirements are subject to change. ATIM does not take any responsibility for
the accuracy and precision of the above information.
National laws and regulations, as well as their interpretation, may vary by country. In case of
uncertainty, it is recommended to consult the local authorities.
Figure 1 : Use of ISM tapes in the world

8
ATIM_ARM-SE_UG_EN_V2.5
Frequency Band
Power/Magnetic
Field
Spectrum access and
mitigation
requirements
Modulation/
maximum occupied
bandwidth
ECC/ERC
Decision
Notes
g1
863-870
MHz (notes
3 and 4)
25 mW e.r.p.
≤ 0.1% duty cycle or
LBT (notes 1 and 5)
≤ 100 kHz for 47 or
more channels (note
2)
FHSS
25 mW e.r.p. Power
density:
-4.5 dBm/100kHz
(note 7)
≤ 0.1% duty cycle or
LBT+AFA
(notes 1, 5 and 6)
No spacing
DSSS and other
wideband techniques
other than FHSS
25 mW e.r.p.
≤ 0.1% duty cycle or
LBT+AFA
(notes 1 and 5)
≤ 100 kHz,
for 1 or more
channels
modulation
bandwidth
≤ 300 kHz
(note 2)
Narrow /wide-band
modulation
g1.1
868-868.6
MHz
(note 4)
25 mW e.r.p.
≤ 1% duty cycle or
LBT+AFA (note 1)
No spacing,
for 1 or more
channels
(note 2)
Narrow / wide band
modulation.
No channel spacing,
however, the whole
stated frequency band
may be used
g1.2
868.7-869.2
MHz
(note 4)
25 mW e.r.p.
≤ 0.1% duty cycle or
LBT+AFA
(note 1)
No spacing,
for 1 or more
channels
(note 2)
Narrow / wide band
modulation.
No channel spacing,
however, the whole
stated frequency band
may be used
g1.3
869.4-
869.65 MHz
500 mW e.r.p.
≤ 10% duty cycle or
LBT+AFA
(note 1)
No spacing,
for 1 or more
channels
Narrow / wide band
modulation
The whole stated
frequency band may be
used as 1 channel for
high speed data
transmission
g1.4
869.7-870
MHz
(note 11)
5 mW e.r.p.
25 mW e.r.p.
No requirement
≤1% duty cycle or
LBT+AFA
(note 1)
No spacing
for 1 or more
channels
Narrow / wide band
modulation.
No channel spacing,
however, the whole
stated frequency band
may be used
Frequency bands applicable in the 868MHz band for « Non-specific short-range devices » specified in Recommendation ERC
70-03, [2].

9
ATIM_ARM-SE_UG_EN_V2.5
1. Technical characteristics
i. General features
Gestion Liaison Ethernet et Liaison série
Transferts Radio Half Duplex
Fréquence 868Mhz
Débit radio 1200bps à 57600bps
Liaison série RS232 RS485 Débit : 1200bps à 115000bps
Puissance radio de 0 à 27dBm à 868Mhz
Mode de Fonctionnement Ethernet, Série, Passerelle
Configuration par Page Web
Mode répéteur simple
Contrôle radio LBT (Listen Before Talk)
ii. ARM-SE
Dimensions
105 x 105 x 31 mm
Antenna
SMA Connector
Temperature
-20°C to +55°C (operating)
-40°C à +70°C (storage)
Fixing
DIN Rail
Power supply
+10/30 Vdc
Weight
300g
Frequency
865 –870 MHz
Radio output power
500 mW (27 dBm)
Data baudrate
1.2 to 115 Kbit/s
Normal mode power consumption
Tx
800 mA/300ms
Rx
150 mA
Sleep mode power consumption
NC
iii. Radio module
Frequency band
868 –870 MHz
N° of channels [868 –870 MHz]
553 channels available (narrow band)
Modulation type
2GFSK or 4GFSK
Power
5mW, 25mW, 500mW depending on the radio
channel
Power stability
+/- 1dBm
Reception sensibility
-124 dBm (1k2), -116 dBm (19k2)
Antenna connector
SMA

10
ATIM_ARM-SE_UG_EN_V2.5
iv. Link interface
Ethernet Interface
Connector RJ45 10 Base T Isolated
Interface RS232
SUB-D 9 female pins
Interface RS485
Terminal block connector
Serial link rate
1200 bps to 115000 bps
MOSFET output
+10/30 Vdc
v. Time delays
Modem wake-up time
3.2s
Turnaround time Rx/Tx and Tx/Rx
2.4ms
Time delays RS232 Rx/Tx and Tx/Rx
0ms
Time delays RS485 Rx/Tx and Tx/Rx
<1ms
Transmission delay in Transparent Series
Mode
5.6ms
vi. LED meaning
LED ON
The modem is powered and has started up
LED SYS
Modem malfunction
LED OUT
Logical state of the output
LED IN
Logical state of the input
vii. Various
Buffer Ethernet
8Ko shared
Flash memory for web pages storage
2Mo
Maximal consumption
150mA (reception) / 400mA (emission)
Casing
Aluminum

11
ATIM_ARM-SE_UG_EN_V2.5
2. Installation
a) Warnings
During installation please observe the following instructions:
The power supply of the equipment must be connected to an electrical installation that
complies with the standardization in force in the country (NFC 15-100 in France). It must
be equipped with protections against overcurrent, over voltages, earth faults (maximum
16A rating).
All equipment connected to the product must conform to EN 60950-1 Ed. 2006 or their
product standard.
The power supply of the equipment must have a disconnecting device in accordance
with IEC 60947. The disconnecting device must be as close as possible to the power
supply and must disconnect all active poles.
Do not install the equipment near a heat source or near a source of moisture.
For your safety, it is imperative that before any technical intervention on the equipment
it be turned off and not connected to the mains.
The security provided by this product is only assured for a use that is in accordance with
its intended purpose. Use only the recommended power supply TRACO POWER, model
TCL24 - 124 or a power supply in accordance with EN60950-1: 2006, limited power.
The security provided by this product is only assured for a use that is in accordance with
its intended purpose. Maintenance can only be performed by qualified staff members.
Do not use the radio box directly outdoors, it is not waterproof and is intended to be
integrated in a box or in an electrical cabinet (optional on request).
Do not connect the Din Rail bracket to ground so that the radio box is grounded. If an
external mast antenna is used, it must also be earthed and possibly added a surge
arrester.
Observe the standards using only the cables and antennas recommended, so as not to
exceed the effective radiated power (P.A.R.) allowed.

12
ATIM_ARM-SE_UG_EN_V2.5
Antenna connection
The use of coaxial cable type RG58 (-1dB / m) is not recommended (high loss).
Antenna
Ground
Ground
Ground
Low loss cable

13
ATIM_ARM-SE_UG_EN_V2.5
b) Antenna
A bad choice of antenna can have considerable consequences on the quality of the radio link. It is
important to use a suitable antenna and, if necessary, a low loss cable to place it in a slightly obstructed
area. The table below shows the antennas available on order:
ANT868-14S3.8
Antenna 1/4 roof wave with 3m80 cable + SMAM plug
(Length 0.5, 1 or 3m80)
ANT868-12FSC
Whip Antenna 1/2 SMA angled wave (direct mounting on
A.R.M.)
ANT868-12S3.8
Antenna 1/2 roof wave with cable length 3m80 + SMAM
plug
ANT868-BZ
Omni-directional antenna "Bazooka" 4.15dBi female N
connector for mast mounting (with mounting flange)
ANT868-Y12
Yagi 6-element 11.5 dBi directive antenna, male FME
connector
(Be careful to respect the standards in force!)
ANT868-Y15
Yagi 10-element 15 dBi directive antenna, male FME
connector
(Be careful to respect the standards in force!)

14
ATIM_ARM-SE_UG_EN_V2.5
c) Mounting
i. On cabinet
A.R.M. radio modems can be supplied with a ½ wave whip antenna angled so that the antenna is
positioned vertically directly on the modem.
This antenna is interesting if A.R.M. is mounted in a plastic box. In this case the antenna must not be
placed against a metal plate (bottom plate for example). ½ Wave antennas do not require a ground
plane and can therefore be mounted directly on a non-metallic surface.
If the radio modem is mounted in a cabinet or metal cabinet, you can use the antenna ANT868-14S,
antenna ¼ roof wave with its cable and SMA plug.
The antenna should be mounted vertically (up or down, depending on the area to be watered). For
best results, it is advisable to place it high and clear of any metallic obstacle in a radius of 1 meter if
possible.
Placement of the modem
2m
(conseillé)
Aucun obsatcle
métallique
dans cette zone
1m
Advised
No metallic obstacles
in this area

15
ATIM_ARM-SE_UG_EN_V2.5
ii. Exterior antenna (mast)
In this case, you can use the antenna referenced ANT868-BZ with a cable type CFP10 (low loss diameter
10mm). With this type of cable, you can deport the antenna 10 or 20m or more depending on the link
budget (we can calculate it for you to know the distance between the two or more points, the type of
antenna and the desired cable length). Do not use any coaxial cable or RG58 which, at this frequency,
causes a colossal loss.
The Fresnel zone is a radio propagation zone represented by an ellipse between the 2 antennas. The
more we wish to transmit far, the more it will mount antennas (About 1m / km, a height of 5m for
5km), this to avoid any obstacle in this area. In free field and at sight, with antennas installed according
to these recommendations, the range of A.R.M radio modems can go up to several km
Fresnel zone (Source: Wikipedia)
If is the distance AB between the antennas, in the center of the link (about the middle of AB), the
radius of this ellipsoid is equal to:
(Source: Wikipedia)

16
ATIM_ARM-SE_UG_EN_V2.5
d) Radiation pattern
« A radiation or emission diagram is the graphical representation of the spatial distribution of a
quantity characterizing the radiation of a radio antenna ...
The radiation pattern of an antenna makes it possible to visualize the emission lobes in all three
dimensions, in the horizontal plane or in the vertical plane including the largest lobe. The proximity
and conductivity of the ground or conductive masses surrounding the antenna can have a significant
influence on the radiation pattern. The measurements on the antennas are made in free space or in
anechoic chamber. »
1
Antenna type
Horizontal Plan (Azimut)
Vertical Plan (Elevation)
Dipole (FSC)
Directive (Yagi)
Figure 2 : Different two-dimensional antenna emission diagrams
1
Source: Wikipedia : https://en.wikipedia.org/wiki/Radiation_pattern

17
ATIM_ARM-SE_UG_EN_V2.5
The antennas available in our catalog are characterized and their radiation patterns are known. Refer
to the antenna user manuals to get the best out of your equipment.
Vertical radiation
Horizontal radiation

18
ATIM_ARM-SE_UG_EN_V2.5
e) Alignment of the antenna
Depending on their radiation pattern and their orientation with respect to the transmitter (or the
receiver), the antennas have different performances in terms of radio propagation.
On the ARM-SE modems configuration web pages, it is possible to launch test tools to assess the
positioning of the antennas. For this, use the transmitter-side pure transmitter emission tests and the
receiver-side spectrum analyzer. The "Spectrum Analyzer" tool allows you to view the received signal
level and optimize the positioning of the antennas accordingly.
Tableau 1 : Alignment of Yagi’s antennae
Bad
(misdirected)
Bad
(misdirected)
Bad
(crossed
polarization)
Good

19
ATIM_ARM-SE_UG_EN_V2.5
f) Radio channel selection
The selection of the radio channel is normally done by the coding wheel placed at the rear of the
modem otherwise by software configuration. This is only read when the power is turned on, so you
must turn off the power, select the radio channel and switch on again for any change. The encoder
wheel has 16 positions from 0 to F (hexadecimal), each corresponding to a different carrier frequency,
spaced in steps of 50kHz and variable power.
In compliance with the standard, the information coming from the user must respect an imposed duty
cycle or stick to the Listen Before Talk (LBT) protocol. These specificities are configurable by Web pages.
Depending on the radio channel chosen, ARM modems can operate over distances of several km.
Channel
Frequency (MHz)
Normalized power
Duty Cycle
Reach
0
869,8
5mW
100%
<1km
1
868,075
2
868,125
3
868,175
4
868,225
5
868,275
6
868,325
7
868,375
25mW
1%
<2km
8
868,425
9
868,475
A (10)
868,525
B (11)
869,85
C (12)
869,9
5mW
100%
<1km
D (13)
869,475
E (14)
869,525
500mW
10%
~5km
F (15)
869,575
Characteristics per radio channel for compatible rates
Refer to the FREQUENCY TABLE chapter for a complete list of frequencies.
To communicate ARM modules together, you must assign them the same channel number.