Antennas Interfaces; Bluetooth - Advantech ICR-4233 Hardware Manual

2. Hardware Functionality

2.2 Antennas Interfaces

The ANT and DIV SMA female connectors are designed for connecting the main and diversity cellular
antennas to the router. If required, connect a GNSS antenna to the GNSS SMA female connector. Addi-
tionally, RP-SMA female connectors labeled WIFI are provided for connecting WiFi antennas on models
that support WiFi.
Do not run the router without connected cellular antennas as the energy from the transmission is
effectively reflected by the open end and can damage the equipment.
Recommended tightening moment for screwing the antenna to the SMA connector is 0.9 Nm.

2.3 Bluetooth

The WiFi connector, situated on the right-hand side of the device, is engineered for compatibility with
Bluetooth antennas. For detailed information on the Bluetooth specifications supported by our router, please
refer to Chapter 4.7. The integration of Bluetooth functionality within our router encompasses three principal
components:
1. Kernel Support and Drivers: Integrated into the router's firmware, this includes kernel-level Blue-
tooth support and the necessary drivers to facilitate Bluetooth connectivity.
2. Bluetooth Router App: This application leverages the BlueZ Linux Bluetooth stack to extend the
router's Bluetooth functionalities. It is not pre-installed on the router. For activation, the
Router App must be downloaded and installed.
3. Node-RED Applications: To achieve advanced Bluetooth functionalities, Node-RED and its Blue-
tooth node can be employed. Similar to the Bluetooth Router App,
Bluetooth node are available for installation.
ICR-4233 Hardware Manual
2.2 Antennas Interfaces
Bluetooth
Node-RED and the Node-RED
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