DTU4x0 GPRS/NB-IoT Data Loggers
User Guide. r. 2.01 | 2022-05-17
Tel.: +420 234 076 670
20
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5.
Connect antenna to SMA-f connector (
optional
)
NOTE:
Base models already contain an internal flexible antenna mounted on the u.FL connector.
If you need a higher power antenna or if you purchased a model without an antenna (
DTU410.F
,
DTU420.F
), you can install an external antenna on the SMA-f connector. In this case, the internal
antenna must be disconnected from the u.FL connector.
6.
Connect the battery backup power supply (
if needed
)
Install jumper on
JP1
connector.
Data logger will automatically detect the levels
and thresholds at the inputs, afterwards will
connect to
server and transmit
the data to the server.
To track the beginning and end of data
transmission, see
7.
Connect the external power cable to data logger
DTU410-C, DTU420-C
(100-240 VAC power supply):
Connect the power wires to
N
and
L
pins of the
~230 VAC
connector.
DTU410, DTU420
(7-30 VDC power supply)
Connect the 7-30 V power supply to the
G
and
V
pins of
7-30VDC
connector, observing the
correct polarity of the wires:
CAUTION!
For this type of power supply, the polarity of wires does not matter.
CAUTION!
Max. input voltage can not exceed 30V.
Reverse polarity will not cause damage,
but the data logger will not operate.
