Smartbox, based on the Telit Chipset HE910 is a ready to use solution for connecting Modbus devices to the Cumulocity Fieldbus Cloud. It provides a Master Slave Communication on RS485 for connecting up to 10 devices as well as 10 Sensors (Current ,Temperature, Pressure). Easy configure the SetUp of building automation fielddevices like pumps, e-meters, Airhandling units in the Cumulocity Fieldbus cloud or connect different sensortypes to the box. Using the MQTT protocol the terminal comes up with a low traffic solution for decentralized applications.


4G LTE LTE Cat 4 (incl. 3G/2G)
LTE Cat 1 (incl. 3G/2G)
LTE Cat M1
NB-IoT (Cat NB1)
3G UMTS | HSPA+ (incl. 2G)
UMTS | HSPA (incl. 2G)
Regions EMEA / APAC / Latinamerica / NorthAmerica / Australia / Global (3G / 2G)
GPS Supported by 2G and 3G Variances
Production The selected Region,Technology and GPS can be defined during Production. The default assembly is 3G with supported regions EMEA / APAC


Fieldbus Modbus

Type Modbus RTU Master
Baudrate 4800, 9600, 19200, 38400, 57600, 115200
Parity Even, ODD, NONE
Stoppbits 2,1
Functioncodes Funct.1 (Read Single Coils)

Funct.2 (Read Input Status)

Funct.3 (Read Holding Registers)

Funct.4 (Read Input Registers)

Funct.5 (Write Coil)

Funct.6 (Write Holding Register)

Datapoints Max. 10 Modbus Slaves, with 100 datapoints per device or 1000 datapoints with 1 device
Sensors 10 Universal Inputs, 1 Relay Output
U1/U2/U3/U4/U5/U6 DIN [voltage free] /NTC/PT100/PT1000/0..10V
U7/U8/U9/U10 DIN [voltage free] /NTC/PT100/PT1000
RelayOutput 3A 24VDC / 3A 120VAC /2A 230V
LEDs GSM Flashing- connected to mobile network
RUN 2xflashing/pause: StartUp Phase

3xflashing/pause: Connected to Server, Data exchange

Act Flashing: Sensor Board Power
Link Flashing: Sensor Board is ready to process data
USB For programming, Logging and Trace the device

Cloud Connector

Availability All Cumulocity Based systems, Cloud der Dinge Deutsche Telekom
Realtime Clock Updating Realtime automatical from #NTP timeserver
Application CloudFieldbus (CFB Integrated in Devicemanagement)

For SetUp connected field devices

Online Operations Remote Restart

Fieldbus Configuration Cloud-Device

Change Transmitinterval from device to Cloud

Change Communication. Baudrate, Databits, Parity, Stopbits

Operate the connected Field device: Registervalues (R/W)

Operate the connected Field device: Change CoilValues (R/W)

Operate the device with AT Commands in the shell

Communication MQTT
Security TLS-Security 1.0 / TLS 1.2 (ab Version 2.4.x)
Notifications Realtime and Pending Operations
Shell Operate the device with AT Commands in the shell
Location Identification by cellular network or GPS Signal (selected- see Radio)
Tracking Location Route by cellular network or GPS Signal
Info Operator, Cell ID, LAC, MNC, MCC, Signal strength
Device Database Device database Support: Measurements, Event, Alarms, Values, Read, Read/Write, Signed/Unsigned, Decimal Places, Multiplier, Divisor, No of Bits, StartBit
OTA RemoteUpdate Software
Data-Exchange Values On Change
Alarms On Change
Events On Change
Measurements Default 900
Signal strength Is sent every 20 Min as a measurement
Offline Buffering Alarms, Events, Measurments ≈ 72h
SMS For Troubleshooting you can operate the device by SMS:


Change tenant



Dimensions 100 x 70 x 45 mm
Weight 89g
GSM Antenna SMA Connector
Power Supply Nominal voltage range: 12-24 VDC, 10%
Maximum continuous (average) supply power: 2.5 W
Maximum continuous (average) supply current: 200 mA at 12V, 100 mA at 24V
Mounting Via DIN Rail Adapter or Adapter for Wall Mounting
SIM Card Format 2FF
Operating temp. -20..60°C
Storage temp. -40..85°C
Oper.humidity Max. 85%
Storage humidity Max. 85%
IP Class IP20/IP54 (opt.)
Conformity Declerations 2014/53/EU (Radio Equipment Directive – RED)

EN301511 v12.5.1 for GSM 900 and 1800 MHz
EN301908 v11.1.1 for UMTS band 1 and 8

EN 301489-1 v2.1.1 general part
EN 301489-52 v0.0.7 for GSM and UMTS