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RF
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LW
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HUB
IoT LoRaWAN to BACnet IP/Modbus TCP/MQTT Hub
Issue Number 7.0
10/08/2022
Four Elms Road
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Edenbridge
Kent
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TN8 6AB
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UK
9 of 27
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Wait until the GSM LED flashes; if the LED does not flash after a few minutes, see the chapter of the GSM antenna.
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Check that the Hub appears on the console: the presence indicator of the Hub changes from red to green.
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If the Hub appears on the console, it is functional; you can go to the connection step of the Hub to the equipment and/or the network of
the building.
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If the Hub does not appear on the console, see the GSM Antenna chapter.
GSM Antenna
The Hub is supplied with a standard GSM antenna.
For the United States, please use an antenna with
a gain not exceeding that shown in the table:
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If the quality of the GSM signal is good: keep the original antenna installed on the Hub.
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If the signal quality is insufficient: move the original antenna out of the cabinet; use an RF extension cord with SMA connector, up to 2
meters, + 1 adhesive support to hold the antenna.
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If the signal quality is still insufficient: use a high
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gain antenna with a maximum of 10 meters of cable; this antenna can, for example,
be moved to the outside or to the other floors to obtain a better signal quality. Please note that, beyond 15 meters of cable, the GSM
signal is significantly weakened.
Frequency Band
Antenna Gain (dBi)
Frequency Band
Antenna Gain (dBi)
GSM850
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1
LTE Band5
7
GSM1900
6
LTE Band7
10
GPRS850 4TS
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1
LTE Band12
6
GPRS1900 4TS
6
LTE Band13
6
WCDMA band2
10
LTE Band25
10
WCDMA band4
9
LTE Band26
8
WCDMA band5
7
LTE Band41
9
LTE Band2
10
LTE Band66
9
LTE Band4
11
