ESRX Module Description

1. Overview

ESRX is a new generation of wireless control module from esRadio Technology, mainly used for wireless control of film and television and stage equipment with DMX512 or RDM.

Features:

• Wireless DMX512, with low latency over long distances
• High refresh rate
• Dimensions: 18.5mm x 33.5mm
• Antenna connector: IPEX
• Firmware OTA (Over-The-Air) updates

2. Pin Assignments

This section describes the pin assignments and functions.

ESRX Module PCBA

The ESRX module PCBA is shown. It features a compact printed circuit board assembly with two distinct views presented.

ESRX Pin Assignment Diagram

The ESRX module features a 38-pin layout arranged around the perimeter of the board. Pin numbering starts from the bottom left and proceeds clockwise. Pin 38 is located on the top right. An RF connector is also visible on the top side of the module.

Pin Functions

¹ If using RGB LED, it should be pulled high to VCC through a 4.7K ohm resistor.

FCC Warning

Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01.

2.2 List of applicable FCC rules

FCC Part 15.247

2.3 Specific operational use conditions

This transmitter/module and its antenna(s) must not be co-located or operating in conjunction with any transmitter. This information also extends to the host manufacturer's instruction manual.

2.4 Limited module procedures

Not applicable

2.5 Trace antenna designs

It is as trace antenna which is not used on the module.

2.6 RF exposure considerations

This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This compliance to FCC radiation exposure limits for an uncontrolled environment, and minimum of 20cm separation between antenna and body. The host product manufacturer would provide the above information to end users in their end-product manuals.

2.7 Antennas

The module supports various antenna types:

• ROB antenna-2: Gain 7.0dBi; Frequency 2402 - 2480 MHz.
• FPC antenna: Gain 3.5dBi; Frequency 2402 - 2480 MHz.
• ROB antenna-1: Gain 3.0dBi; Frequency 2402 - 2480 MHz.

2.8 Label and compliance information

The end product must carry a physical label or shall use e-labeling followed KDB 784748 D01 and KDB 784748 stating "Contains Transmitter Module FCC ID: 2BRM7-ESRX".

2.9 Information on test modes and additional testing requirements

For more information on testing, please contact the manufacturer.

2.10 Additional testing, Part 15 Subpart B disclaimer

The modular transmitter is only FCC authorized for the specific rule parts (FCC Part 15.247) listed on the grant, and that 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. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed when contains digital circuity.

Integration and Module Statement

2.11 Note EMI Considerations

Host manufacturers are recommended to use the D04 Module Integration Guide for best practice RF design engineering testing and evaluation, especially concerning non-linear interactions that may generate additional non-compliant limits due to module placement relative to host components or properties.

2.12 How to make changes

Since only Grantees are permitted to make permissive changes, module manufacturers should provide contact information and guidance to host providers for integration instructions if their module is expected to be used differently than granted.

Module Manufacturer Contact:

Sichuan esRadio Technology Co., Ltd

Tel: +86-18190706392

E-mail: suli@esradio.cn

FCC Statements

(OEM) Integrator must assure compliance of the entire end-product, including the integrated RF Module. For FCC Part 15 B (§15.107 and §15.109) compliance, the host manufacturer must show compliance with Part 15 while the module is installed and operating.

Furthermore, the module should be transmitting, and the evaluation must confirm that the module's intentional emissions (15C) are compliant (fundamental / out-of-band). The integrator must apply for appropriate equipment authorization (e.g., Verification) for the new host device per definition in §15.101.

Integrators are reminded to ensure these installation instructions are not made available to the end-user of the final host device.

The final host device, into which this RF Module is integrated, must be labeled with an auxiliary label stating the FCC ID of the RF Module, such as "Contains FCC ID: 2BRM7-ESRX".

The Integrator will be responsible for satisfying SAR/ RF Exposure requirements when the module is integrated into the host device.

Module statement

The single-modular transmitter is a self-contained, physically delineated component for which compliance can be demonstrated independently of the host operating conditions. It complies with all eight requirements of § 15.212(a)(1) as summarized below:

• 1) The radio elements have the radio frequency circuitry shielded.
• 2) The module has buffered modulation/data inputs to ensure compliance with Part 15 requirements with any type of input signal.
• 3) The module contains power supply regulation on the module.
• 4) The module contains a permanently attached antenna.
• 5) The module demonstrates compliance in a stand-alone configuration.
• 6) The module is labeled with its permanently affixed FCC ID label.
• 7) The module complies with all specific rules applicable to the transmitter, including all conditions provided in the integration instructions by the grantee.
• 8) The module complies with RF exposure requirements.

FCC Compliance Notes

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment causes harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:

• 1) This device may not cause harmful interference, and
• 2) This device must accept any interference received, including interference that may cause undesired operation.

Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.