2. The Device
in the eld "over the air" by means of LoRaWAN downlinks will soon also be available via
rmware update.
Please read the manual carefully before operating the device. A safe operation of the
device is only possible if you follow the guides provided in this manual. Using the device
dierently than intended by Lobaro my cause damage to people, the environment, or
the device.
2. The Device
2.1. Device installation
The device must be xed on a at surface using the lateral mounting holes of the case, see
chapter 6.1 for a detailed description of all housing dimensions. Alternatively we oer as
accessory a mounting clip for a standard 35mm DIN rail. The device can then easily snapped
on a such rails. It can therefore be added to a variety of racks alongside other devices.
Under any circumstances the device must not be mounted higher than 2 meters above
ground to avoid any risks in case of falling down!
For optimal RF performance (e.g. LoRa range) any metal obstacles near the internal antenna
should be avoided. In this case `near' is dened as keep-out distance of about 3-5 centimeters
around the antenna. The internal helix antenna can be identied by the winding pcb traces
near the white printed encircled `connectivity' symbol. In any case a device mounting directly
on top of a metal surface is not advisable since it will degrade the possible RF range. Stone
walls, wood or plastic standos are perfectly ok.
In case of challenging installation locations (e.g. in basements) or unavoidable long distances
to the next LoRaWAN gateway, Lobaro oers on request custom product variant equipped
with a `SMA' connector to support a external antenna connection.
2.2. Power Supply
The wMBUS over LoRaWAN Bridge default power supply consists of two series connected
o-the-shelf 1.5V `AA' sized batteries. Be sure to get the polarity right, see the `+'-Symbol on
the board. In general only AA cells of the types Alkali-Manganese (1.5V, LR6) and Lithium-
Iron-Sulphide (1.5V, FR6) are allowed to be inserted in the device. Lobaro recommends the
use of FR6 batteries like the Energizer Ultimate Lithium over LR6 types because of the higher
capacity and better discharge properties.
Other Batteries or accumulators with a nominal voltage of more than 1.5V must not
inserted into the device under any circumstances. In particular, lithium based cells with
a nominal voltage of 3.6V or 3.7V must not be used on the AA battery slots!
wMBUS over LoRaWAN Bridge
4
