UniRC 7 Pro RF Module Product Manual
1 Product Introduction
1.1 Overview
The UniRC 7 Pro RF Module utilizes 2.4GHz and 5.8GHz band communication with a high-power design and a dual transmission scheme to ensure the stability of the graph transmission link.
1.2 Basic Specification
| Sort | Specification | Detailed Description |
| Hardware | Power | Typical power supply 12V/2A; Supports wide voltage 5-16V power input. |
| Configure serial port | UART0, TTL 3.3V, can issue AT commands. | |
| Communication serial port | COMUART, TTL 3.3V, for data transmission. | |
| Antenna interface | 2.4 GHz and 5.8 GHz pair of antenna ports. | |
| Function | Automatic frequency hopping | Supports automatic frequency hopping: 1) Automatically selects less interference channels to work, with smooth frequency hopping switching. 2) Supports custom frequency hopping bandwidth range and custom frequency lock work. 3) Supports custom transmit power configuration. |
| Serial port data transmission | Serial port transmission priority is higher than network port priority. | |
| Networking mode | Supports star networking, with a maximum support of 32 nodes. | |
| AT instruction transmission through network port | 1) Supports web UI transmission mode. 2) Supports AT instruction transmission through socket mode. | |
| Upgrade features | Supports OTA upgrade. | |
| Performance | Limit distance | 10 KM. |
| Reliability | 2) Open circuit protection design. 3) Over-temperature protection function to ensure the device enters a protection state without damage when the temperature is too high. | |
| Delay | 1) Average delay of serial transmission is ≤ 30 ms. 2) Average delay of network port transmission is ≤ 50 ms. 3) Start-up delay (until the completion of chain establishment) is ≤ 35 s. |
2 External Interface
2.1 40pin Connector Port
2.2 Type of Connector
Wire-to-board connector model: DF40HC(3.5)-40DS-0.4V(51)
2.2.1 Connector Mechanical Parameters
A textual description of the connector's mechanical parameters is provided, including dimensions and pick-up areas for automated assembly.
2.2.2 Connector Interface PIN Definition
| Pin | Signal Name | Interface | Type | Description |
| 1 | DP | USB2.0 | I/O | USB2.0 signal |
| 2 | DM | USB2.0 | I/O | USB2.0 signal |
| 3 | COMUART-RX | 3.3 V | I | COMUART signal |
| 4 | COMUART-TX | 3.3 V | O | COMUART signal |
| 5 | UART0 RX | 3.3 V | I | UART0 RX |
| 6 | UART0 TX | 3.3 V | O | UART0 TX |
| 7 | GND | GND | GND | |
| 8 | 12V | 12 V | O | 2 A |
| 9 | UART1 RX | 3.3 V | I | UART1 RX |
| 10 | UART1 TX | 3.3 V | O | UART1 TX |
| 11 | KP-BOOT | 2.85 V | I | DOWNLOAD START |
| 12 | VBUS-V | 5 V | IO | USB POWER |
RX0/TX0: Configures the serial port for transmitting AT instructions.
RX1/TX1: Data pass-through, system log, used to print system startup information.
USB: Debug configuration interface.
3 Electrical Characteristics and Reliability
3.1 Electrical Characteristics
| Pin | Parameters | Typical Value |
| VBAT | Vin | 12 V |
| Iin | 2 A |
3.2 Temperature Characteristic
Storage temperature: -40 ~ +85°C
Working environment temperature: 20 ~ +60°C
Working environment humidity: 5% ~ 95%
3.3 ESD Protection Characteristics
Contact: ±6 kV (GND)
Air: ±8 kV
4 RF Characteristics
| Operating Frequency Band | Max Transmit Power (tolerance ±2 dB) | Bandwidth | Modulation |
| 2400 ~ 2483.5 MHz | 25 dBm | 10 MHz | QPSK |
| 5725-5850 MHz | 19 dBm | 10 MHz | QPSK |
Index of Sensitivity
| Sensitivity (access) | 2.4GHz band (2441.5MHz) | 10 MHz -103dBm |
| Sensitivity (BLER ≤ 3%) | 2.4GHz band (2441.5MHz) | 10 MHz -91dBm (10Mbps) |
| Sensitivity (access) | 5.8GHz band (5750MHz) | 10 MHz -103dBm |
| Sensitivity (BLER ≤ 3%) | 5.8GHz band (5750MHz) | 10 MHz -91dBm (10Mbps) |
The Module is designed to comply with the FCC statement. FCC ID is 2BN8IUNIRC7PRORFMD. The host system using the Module should have a label indicating it contains the modular's FCC ID: 2BN8IUNIRC7PRORFMD. This radio module must not be installed to collocate and operate simultaneously with other radios in the host system; additional testing and equipment authorization may be required for simultaneous operation with other radios. The Module and its antenna must not be co-located or operating in conjunction with any other transmitter or antenna within a host device.
The modular must be installed in the host assigned by Company name: Siyi Technology (Shenzhen) Co.,Ltd., Model no.: UniRC 7 Pro RF Module. If other host types are used, further evaluation and possible C2PC may be required if they are not significantly similar to the one tested. The WIFI Module is designed for a compact PCB design. It should be installed and operated with the host or other minimum distance of 20 centimeters between the radiator and your body. To comply with FCC regulations limiting both maximum RF output power and human exposure to RF radiation, the maximum antenna gain including cable loss in a mobile-only exposure condition must not exceed 4.07 dBi in the 2.4G band, 4.91 dBi in the 5.8G band, and 6.98 dBi in the 5.8G band. The module uses Omnidirectional Antenna, Directional Antenna (Rod-shaped), and Directional Antenna (Double-layer board); these antennas are sold with the module.
Notice to OEM Integrator
The end-user manual shall include all required regulatory information/warnings as shown in this manual. The OEM integrator is responsible for testing their end-product for any additional compliance requirements required with this module installed. If the final product contains circuits of other FCC PART 15 Subparts, the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. The intended use is generally not for the general public; it is generally for industry/commercial use. The connector is within the transmitter enclosure and can only be accessed by disassembly of the transmitter, which is not normally required. The user has no access to the connector. Installation must be controlled. Installation requires special training.
This device complies with Part 15 of the FCC Rules. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and your body.
2.4G:
Antenna type: Omnidirectional Antenna
The max antenna gain (in dBi):
Antenna 1: 4.07 dBi
Antenna 2: 4.07 dBi
5.8G:
Antenna type: Directional Antenna (Rod-shaped):
The max antenna gain (in dBi):
Antenna 1: 4.91 dBi
Antenna 2: 4.91 dBi
Antenna type: Directional Antenna (Double-layer board):
The max antenna gain (in dBi):
Antenna 1: 6.98 dBi
Antenna 2: 6.98 dBi
2.2 Module Compliance
This module has been assessed against the following FCC rule parts: CFR 47 FCC Part 15 C (15.247 DTS) and CFR 47 FCC Part 15 E (NII). It is applicable to the modular transmitter.
2.3 Antenna Usage
This radio transmitter, UniRC 7 Pro RF Module, has been approved by the Federal Communications Commission to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device.
The concrete contents to check are the following three points:
- Maximum antenna gains are shown in item 2.7 below.
- Should be installed so that the end user cannot modify the antenna.
- Feed line should be designed in 50 ohm.
Fine-tuning of return loss etc. can be performed using a matching network. The antenna shall not be accessible for modification or change by the end user.
2.4 Single Module Approval
The module complies with FCC Part 15.247 / Part 15.407 and applies for Single module approval.
2.5 Trace Antenna Designs
Trace antenna designs are applicable. Any deviation(s) from the defined parameters of the antenna trace, as described by the instructions, require that the host product manufacturer must notify the module grantee that they wish to change the antenna trace design. In this case, a Class II permissive change application is required to be filed by the grantee, or the host manufacturer can take responsibility through the change in FCC ID (new application) procedure followed by a Class II permissive change application.
The device must be professionally installed. The intended use is generally not for the general public; it is generally for industry/commercial use. The connector is within the transmitter enclosure and can only be accessed by disassembly of the transmitter, which is not normally required. The user has no access to the connector. Installation must be controlled. Installation requires special training.
2.6 RF Exposure Compliance
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
2.7 Antenna Specification List
The following antennas have been certified for use with this module. Only antennas of the same type with equal or lower gain may also be used with this module. Other types of antennas and/or higher gain antennas may require additional authorization for operation. The installer should use a unique antenna connector. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. The manufacturer of the module will inform the installer to meet with FCC Part 15.203 in the warning part.
2.4G Customize
| Antenna | Frequency (MHz) | Antenna Type | MAX Antenna Gain (dBi) |
| 1 | 2406.5 MHz to 2476.5 MHz | Omnidirectional Antenna | 4.07 |
| 2 | 2406.5 MHz to 2476.5 MHz | Omnidirectional Antenna | 4.07 |
5.8G Customize
| Antenna | Frequency (MHz) | Antenna Type | MAX Antenna Gain (dBi) |
| 1 | 5734.5 MHz to 5839.5 MHz | Directional Antenna (Rod-shaped) | 4.91 |
| 2 | 5734.5 MHz to 5839.5 MHz | Directional Antenna (Rod-shaped) | 4.91 |
| 3 | 5734.5 MHz to 5839.5 MHz | Directional Antenna (Double-layer board) | 6.98 |
| 4 | 5734.5 MHz to 5839.5 MHz | Directional Antenna (Double-layer board) | 6.98 |
2.8 FCC Identification
Please notice that if the FCC identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as "Contains FCC ID: 2BN8IUNIRC7PRORFMD"; any similar wording that expresses the same meaning may be used.
2.9 Host Product Testing Recommendation
Testing of the host product with all the transmitters installed - referred to as the composite investigation test - is recommended to verify that the host product meets all the applicable FCC rules. The radio spectrum is to be investigated with all the transmitters in the final host product functioning to determine that no emissions exceed the highest limit permitted for any one individual transmitter as required by Section 2.947(f). The host manufacturer is responsible to ensure that when their product operates as intended, it does not have any emissions present that were not present when the transmitters were tested individually. If the modular transmitter has been fully tested by the module grantee on the required number of channels, modulation types, and modes, it should not be necessary for the host installer to re-test all the available transmitter modes or settings. It is recommended that the host product manufacturer, installing the modular transmitter, perform some investigative measurements to confirm that the resulting composite system does not exceed the spurious emissions limits or band edge limits (e.g., where a different antenna may be causing additional emissions). The testing should check for emissions that may occur due to the intermixing of emissions with the other transmitters, digital circuitry, or due to physical properties of the host product (enclosure). This investigation is especially important when integrating multiple modular transmitters where the certification is based on testing each of them in a stand-alone configuration.
2.10 Host Device Compliance
Any company of the host device which installs this modular should perform the test of radiated & conducted emission and spurious emission etc. according to FCC Part 15C: 15.247 and 15.209 & 15.207, Part 15 E 15.407 class B requirement. Only if the test results comply with FCC Part 15C: 15.247 and 15.209 & 15.207, Part 15 E 15.407, 15B class B requirement, then the host can be sold legally. The host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. If the grantee markets their product as being Part 15 Subpart B compliant (when it also contains unintentional-radiator digital circuitry), then the grantee shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed.
