Antennas Interfaces; Bluetooth - Advantech ICR-4161 Hardware Manual

2. Hardware Functionality

2.2 Antennas Interfaces

SMA female connectors (ANT0, ANT1, ANT2, and ANT3) are designated for connecting cellular anten-
nas to the router. Refer to Table
female connectors are shared with the cellular connectors, allowing connection to ANT3 for the L1 band
and to ANT1 for the L5 band. Additionally, 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-4161 Hardware Manual
14 for detailed module antenna mapping. The GNSS antenna's SMA
2.2 Antennas Interfaces
Bluetooth
Node-RED and the Node-RED
15