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| Overview

The 75F edge devices are paired with the CCU to communicate back and forth with the CCU and the terminal-level equipment in the 75F system.

The pairing process was pretty simple the edge devices broadcast the MAC addresses over Bluetooth which the CCU picks, and a pairing pin is displayed on the edge device entered in the CCU.

If the Bluetooth connectivity fails for some reason, the user cannot pair the edge device to the CCU,  unless the process is restarted. 

To address such pairing failed scenarios, the 75F system introduces a new paradigm the alternate pairing which is otherwise called the manual pairing. 

This lets the user pair the edge device even when the Bluetooth connectivity fails, without restarting the process again.

| Automatic Pairing Failure & Switching to Manual Pairing in CCU.

From the CCU floor layout screen.

  • Click Pair Module+ to pair a module as a HelioNode terminal profile.

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  • Select HelioNode as the device type from the device selection screen.

  • Select any profile to pair from the profile selection screen.

  • Click Pair from the pairing steps screen.

A pop-up notifying that no devices advertising for pairing, and the option to connect for a manual pairing process displays, as below.

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Or the devices advertising the MAC address for pairing, and the option to connect for a manual pairing process,  displays, as below.

  • Click Connect Manually if the expected device MAC address is not displayed in the list.

 

The Manual Pairing steps screen displays, as below.

  • Follow the steps on the screen to pair the device manually.

| Manual Pairing Process Steps

The enablement for the manual pairing process step in the HelioNode is triggered after the device waits for 15 seconds, for the CCU to detect the MAC address.

  • Note the pairing address made available for pairing the device from the pairing steps screen, as below

From the advertising /waiting to pair screen of the HelioNode device.

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Having waited for 15 seconds the Manual Pairing enablement option displays, as below.

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  • Press the right arrow button on the HelioNode to enter the Manual Pairing option screen.

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  • Use the right arrow button on the HelioNode, to access the digits on the screen.

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  • Further, use the right arrow button on the HelioNode, to access the other digits on the screen.

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  • Use the up and down arrow buttons on the HelioNode to set a required value for LW MESH ADDRESS, as per the pairing address noted from the Manual pairing steps screen in the CCU.

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  • Use the right arrow button on the HelioNode again, to access till the last digit on the screen.
  • Use the up and down arrow buttons on the HelioNode to set a required value for LW MESH ADDRESS, as per the pairing address noted from the Manual pairing steps screen in the CCU.

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  • Press the left arrow button to set the pairing address in the device.

The device reboots and establishes communication with the CCU.

| Pairing Completion on CCU

To complete the manual pairing process.

  • Click Pair on the CCU.

The CCU lets the user configure and confirm the profile.

  • Configure the required configurations.
  • Click Set to confirm the configured profile.

 

The pairing completes in the CCU and the communication starts with the HelioNode.

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