Installation
Mount CMi6110 in either a L+G UH50 heat meter or L+G UC50 calculator.
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Mount a SIM card (size: Nano) in the SIM card holder (7).
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Grab the module by the outer edges.
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Gently press it into position in module slot 2.
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Route the cable according to following image.
Note
Internal antenna is only an option for battery powered devices.
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Connect an external antenna (released by the supplier) with MCX connector to the module in the UH50/UC50.
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Route the antenna cable.
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Push the connector gently into the socket on the module.
Caution
The battery supplying the meter must be connected before the battery supplying the NB-IoT module is connected to the CMi6110.
Caution
If using an external antenna, make sure to mount it at least 0.5 meters away from the meter in order not to cause interference.
Note
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The rubber gromets may not be cut.
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Punch a hole with 3mm diameter through the grommet. A 3mm hex key (Allen key), for example, is a suitable tool.
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Make sure to remove the strain relief (metallic clip) and do not remount it due to the risk of damaging the antenna cable. If you want to add additional strain relief, mount a cable tie on the antenna cable, close to the cable entry inside the enclosure.
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Connect the (longer) 2-wire cord from the power supply unit (24V or 110/230V) in the right compartment to the power connector (2). For more information about PSU, see manual for CMip2110/ WZU-AC230-xx.
Battery operation is available from FW 1.03. Models with earlier FW can be remotely updated.
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Remove the red flap inside the meter.
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If the right compartment for power supplies is equipped, remove that battery or power supply unit.
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For the meter supply, a Landis+Gyr WZU-BC+GUM battery must be inserted into the left compartment.
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Mount the Landis+Gyr WZU-NB-IoT-BAT (battery+holder) in the right compartment.
Caution
The battery supplying the meter must be connected before connecting the battery supplying the CMi6110.
Removing the meter’s red flap is only allowed for this purpose! The battery holder (made of isolating material) substitutes the function of the red flap. Once inserted into the meter it cannot be removed.
When activated, the module will attempt to connect to the NB-IoT network. This phase is indicated by the green and red LED lights up for 1 second, followed by short flashes on the green LED until the module has joined the network. When the module succeeds in connecting to the network, the green LED will be lit for 8 seconds, as illustrated in the image below. Upon successful connection, a meter readout will automatically be sent to the receiving system.
If the module fails to join the mobile network, it will perform retries until it succeeds. The time between each attempt will increase for every attempt until it is performed once every day. A new join attempt cycle can be manually started anytime by using the push button to reboot the module or by deactivating and activating the module using the Elvaco OTC App.
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