Vega Absolute SH-2 User manual

www.vega-absolute.ru
LORAWAN®UNIVERSAL
MODEM
VEGA SH-2
USER MANUAL
DOCUMENT REVISION
FIRMWARE VERSION
07 2.0.1 and higher

Vega SH-2 / User Manual
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CONTENTS
INTRODUCTION............................................................................................................................................................................4
1 DESCRIPTION AND OPERATION ............................................................................................................................................5
Device description ....................................................................................................................................................................5
Comunication and data collection algorithm .....................................................................................................................5
Functional ...................................................................................................................................................................................7
Marking ........................................................................................................................................................................................7
2 SPECIFICATION ..........................................................................................................................................................................8
Device specification..................................................................................................................................................................8
Default device settings .............................................................................................................................................................9
3 OPERATION...............................................................................................................................................................................10
Device appearance..................................................................................................................................................................10
Contacts ....................................................................................................................................................................................12
Indication ..................................................................................................................................................................................14
Button on the board ...............................................................................................................................................................15
Mounting Recomendations...................................................................................................................................................15
4 COMMUNICATION PROTOCOL ...........................................................................................................................................18
Vega SH-2 modem transmits the following types of packets to the LORAWAN®NETWORK.................................18
1. Packet with telemetry...............................................................................................................................................18
1.1. Standard subpacket ..............................................................................................................................................18
1.2. Subpacket timestamp...........................................................................................................................................19
1.3. Subpacket 1-Wire ..................................................................................................................................................19
1.4. Subpacket ModBus ...............................................................................................................................................20
2. Settings packet...........................................................................................................................................................21
3. Informational packet ................................................................................................................................................22
4. Packet with time correction request......................................................................................................................22
VEGA SH-02 modem receives packets of the following types by LORAWAN®..........................................................23
1. Packet with time correction ....................................................................................................................................23
2. Packet with request of settings...............................................................................................................................23
3. Packet with settings ..................................................................................................................................................23
5 STORAGE AND TRANSPORTATION REQUIREMENTS ......................................................................................................24

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6 CONTENT OF THE PACKAGE ................................................................................................................................................25
7 WARRANTY ................................................................................................................................................................................26

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INTRODUCTION
This manual is designated for Vega SH-2 modem (hereinafter – the modem)
manufactured by Vega-Absolute OOO and provides information on powering and activation
procedure, control commands and functions of the modem.
This manual is targeted at specialists familiar with installation work fundamentals of
electronic and electrical equipment.
Vega-Absolute OOO reserves the right to make changes to the manual related to the
improvement of equipment and software, as well as to eliminate typos and inaccuracies,
without prior notice.

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1 DESCRIPTION AND OPERATION
DEVICE DESCRIPTION
Vega SH-2 universal modem is designed for collection the data from external
connected devices, further accumulating and transmitting of this information in the
LoRaWAN®network.
The modem has two digital inputs which may be configured as pulse or security.
Besides the device has two analog inputs, 1-Wire and RS-485 interfaces.
The modem is powered by a one or two 6400 mAh built-in battery or an external
power supply 5…55 V.
The internal clock is set automatically when device connected to the "Vega LoRaWAN
Configurator" via USB, also adjustable via LoRaWAN®.
The modem can transmit collected data via LoRaWAN1technology.
COMUNICATION AND DATA COLLECTION ALGORITHM
Before using the modem, it must be activated in the LoRaWAN®network.
Vega SH-2 supports two activation methods in the LoRaWAN®network - ABP and
OTAA.
ABP method. After pressing the start button, the device immediately starts working in
the "Active" mode.
OTAA method. After pressing the start button, the device makes three attempts to
connect to the network within the set frequency plan. After the activation in the LoRaWAN®
network is confirmed, the device sends a signal (LED flashing for 3 seconds) and switches to
the "Active" mode. If all attempts are fail, the modem will go into a low power mode for a day,
after which it will try to register in the network again. The modem will try again once a day
until it registers successfully.
The device forms the data packet with current state with a configurable period from 5
minutes to 24 hours. The packets stored in the device memory and transmitting during the
next communication session with the LoRaWAN®network.
Examples
If the data collection period is set to 24 hours the packet is formed at 00.00 on the
internal clock of the device
If the data collection period is 12 hours then at 00.00 and at 12.00, and so on.
1The device can operate using NB-IoT technology. To do this, you need to install the firmware for the NB-15 on the
device. For details, see the NB-15 “User manual”.

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The adjustable data transfer period can be 5, 15, 30 minutes and 1, 6, 12 and 24 hours.
When beginning of communication session, the device starts sending packets with readings
from the earliest packet. The time of data transmitting cannot be specified, it’s defined in
random way for every device in chosen period of transmission from the moment of
connection to the network.
Example
The data transmission period is set to 30 minutes, the settings are applied at 16:40. The
device randomly selects the packet transmission time in a half-hour period from 16:40 to 17:10,
for example, 16:41. Thus, packets from this device will be transmitted at 16:41, 17:11, 17:41,
18:11, and so on every 30 minutes according to the device's internal clock.
The internal clock is set automatically when you connect to the device through USB,
also can be adjust via LoRaWAN®network.

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FUNCTIONAL
Vega SH-2 universal modem is an A class device (LoRaWAN®classification) and has the
following features:
ADR support (Adaptive Data Rate)
Sending of confirmed packets (configurable)
Inputs switching to the “Security” mode for connection of external sensors etc.
Saving non-transmitted packets in device memory
Time referencing readings by internal clock
Communication in case of security inputs actuation
Temperature measurement
Charge measuring of the built-in battery (%)
MARKING
Device marked with sticker that contain the next information:
oDevice model;
oDevEUI;
oMonth and year of manufacture;
Sticker located in three places – on device case, in factory certificate and on
the packing box.
Besides, there is an additional sticker located on the packing box and contains:
oInformation about firmware version;
oQR-code containing DevEUI and keys for device registration in network via
OTAA method.

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2 SPECIFICATION
DEVICE SPECIFICATION
MAIN
Digital inputs 2
Analog inputs 2
Interface 1-Wire / RS-485 (modbus)
USB-port micro-USB, type B
Operating temperatures -40…+85 °С
Communication channels LoRaWAN®
Internal temperature sensor yes
Communication period 5, 15, 30 minutes, 1, 6, 12 or 24 hours
Data collection period 5, 15, 30 minutes, 1, 6, 12 or 24 hours
Memory amount for storing packets 100 packets
LoRaWAN®
LoRaWAN®class A
Quantity of LoRaWAN®channels 16
Frequency plans supported by default RU868, EU868, KZ865, custom
(EU868 based)
Frequency plans available as order option IN865, AS923, AU915, KR920, US915
Activation type ABP or OTAA
Type of the LoRaWAN®antenna external
Sensitivity -138 dBm
Radio coverage in restrained urban conditions up to 5 km
Radio coverage within line of sight up to 15 km
Transmitter power by default 25 mW (configurable)
POWER
Built-in battery 6400 /12800 mAh
External power supply 5…55 V
CASE
Housing dimensions (without cable gland and SMA-
connector)
96 х 96 х 50 mm
Ingress protection rating
IP67
PACKAGE
Package dimensions
165 x 118 x 57 mm
Weight
0,410 kg

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DEFAULT DEVICE SETTINGS
PARAMETER
VALUE
Frequency plan RU868
Activation type OTAA
Adaptive Data Rate ON
Confirmed Uplinks OFF
Rx 1 Delay 1 second
Join Accept Delay
5 seconds
Uplink number of transmissions 1
Data rate DR0
Power 14 dBm
Communication period 24 hours
Data collection period 24 hours
Time zone UTC +00:00
Inputs operate in mode pulse
For changing the device settings, you need to connect to it with “Vega LoRaWAN
Configurator” application. You can download app on the iotvega.com site in SOFT section as
well as User Manual for configurator. Go to the app page.

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3 OPERATION
DEVICE APPEARANCE
Vega SH-2 is represented in gray plastic case screwed together. The case of the device
is equipped with a cable gland of standard size M12. A seal is installed inside the gland, which
ensures compliance with the declared degree of protection of the device case.
1 – screw ø 4 mm х
2 – cable gland of standard size M12 for installation of round cable ø 5-6 mm
3 – external antennas input
All of elements for manage and indication as well as connecting contacts are placed on
the board inside the case.
Internal structure of the cable gland
1
3
2