ESRX Wireless DMX Module
“
Specifications
- Wireless control module for film and television and stage
equipment - Supports DMX512 or RDM protocols
- Wireless DMX512 with low latency over long distances
- High refresh rate
- Dimensions: 18.5mm x 33.5mm
- Antenna connector: IPEX
- Firmware OTA supported
Product Usage Instructions
1. Pin Assignments
The ESRX module has various pin assignments and functions as
listed:
| Pin | Name | Description |
|---|
2. FCC Warning
Ensure compliance with FCC RF radiation exposure limits and
maintain a minimum of 20cm separation between the antenna and the
body for safety.
3. Antennas
- ROB antenna-2: 7.0dBi; 2402 – 2480 MHz
- FPC antenna: 3.5dBi; 2402 – 2480 MHz
- ROB antenna-1: 3.0dBi; 2402 – 2480 MHz
4. EMI Considerations
Host manufacturers are advised to follow the D04 Module
Integration Guide for best practices in RF design engineering
testing to avoid non-compliant limits due to module placement.
5. Making Changes
Only Grantees are permitted to make changes, and module
manufacturers should provide contact information for guidance on
integration.
FAQ
Q: What is the purpose of the ESRX module?
A: The ESRX module is designed for wireless control of film and
television and stage equipment using DMX512 or RDM protocols.
Q: What are the key features of the ESRX module?
A: The ESRX module offers wireless DMX512 control with low
latency, high refresh rates, compact dimensions, antenna connector
IPEX, and firmware OTA support.
Q: How should I handle antenna placement for the ESRX
module?
A: Maintain a minimum of 20cm separation between the antenna and
the body to comply with FCC RF radiation exposure limits.
Q: Can I make changes to the ESRX module?
A: Only Grantees are permitted to make permissive changes to the
module, and it is recommended to contact the module manufacturer
for guidance on integration.
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ESRX Technical Documentation
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 18.5mm x 33.5mm Antenna connector IPEX Firmware OTA
2. Pin Assignments
This section describes the pin assignments and functions.
The ESRX module PCBA is showed as follow :
The ESRX pin assignment is as follows :
Copyright © esRadio
suli@esradio.cn
Page 1
ESRX Technical Documentation
Pin Functions
Pin
Name
1
VSS
2
IRQ
3
CS
4
SCK
5
MOSI
6
MISO
7
VSS
8
DMX_TXD
9
VSS
10
RS485_DE
11
RS485_RE
12
DMX_RXD
13
RDI_LVL0
14
RDI_LVL1
15
RDI_LVL2
16
RDI_LVL3
Copyright © esRadio
Pin type Power Digital output Digital input Digital input Digital input Digital output Power Digital output Power Digital output Digital output Digital input Digital output Digital output Digital output Digital output
suli@esradio.cn
Description Ground(0V) Interrupt signal,active low Chip select,active low SPI clock SPI Master Out,Slave In SPI Master In,Slave Out Ground(0V) DMX TXD Ground(0V) RS485 driver control signal RS485 driver control signal DMX RXD(3.3V max) Radio level LED Radio level LED Radio level LED Radio level LED
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17
RDI_LVL4
18
RDM
19
DMX
20
N.C
21
N.C
22
VSS
23
VSS
24
VSS
25
VSS
26
VSS
27
VSS
28
SCL
29
SDA
ESRX Technical Documentation
Digital output
Radio level LED
Digital output
RDM LED
Digital output
DMX LED
No connection
Do not connect
No connection
Do not connect
Power
Ground(0V)
Power
Ground(0V)
Power
Ground(0V)
Power
Ground(0V)
Power
Ground(0V)
Power
Ground(0V)
Digital input/output I2C clock to RGB LED driver1
Digital input/output I2C data to RGB LED driver1
30
VSS
31
N.C
32
LINK_SW
33
STATUS_LED
34
LINKED
35
RF_LINK
36
VDD
37
VSS
38
ARB
ANT RF ANT
Power No connection Digital input Digital output Digital output Digital output Power Power Digital input
RF
Ground(0V) Do not connect Link control switch input Status LED Linked to transmitter LED RF link LED Power supply (3.3V) Ground(0V) Arbitration function while using other 2.4G WIFI module in one system Antenna connector
1 If using RGB LED, it should be pulled high to VCC through a 4.7K ohm resistor.
Copyright © esRadio
suli@esradio.cn
Page 3
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.
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2.7 Antennas ROB antenna-2; 7.0dBi; 2402 – 2480 MHz
FPC antenna; 3.5dBi; 2402 – 2480 MHz
ROB antenna-1; 3.0dBi; 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.
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2.11 Note EMI Considerations Note that a host manufacture is recommended to use D04 Module Integration Guide recommending as “best practice” RF design engineering testing and evaluation in case non-linear interactions generate additional noncompliant limits due to module placement to host components or properties
2.12 How to make changes Since only Grantees are permitted to make permissive changes, it is recommended that module manufactures provide contact information and some guidance to host providers in the integration instructions if they expect their module will 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 has to assure compliance of the entire end-product incl. the integrated RF Module. For 15 B (§15.107 and if applicable §15.109) compliance, the host manufacturer is required to show compliance with 15 while the module is installed and operating.
Furthermore the module should be transmitting and the evaluation should confirm that the module’s intentional emissions (15C) are compliant (fundamental / out-of-band). Finally the integrator has to apply the appropriate equipment authorization (e.g. Verification) for the new host device per definition in §15.101.
Integrator is reminded to assure that these installation instructions will not be made available to the end-user of the final host device.
The final host device, into which this RF Module is integrated has to 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 to satisfy SAR/ RF Exposure requirements, when the module integrated into the host device.
Module statement
The single-modular transmitter is a self-contained, physically delineated, component for which compliance can be demonstrated independent of the host operating conditions, and which 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 that the device will comply with Part 15
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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 the conditions provided in the integration instructions by the grantee. 8) The module complies with RF exposure requirements.
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 does cause 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.
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Documents / Resources
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ESR ESRX Wireless DMX Module [pdf] Instruction Manual ESRX Wireless DMX Module, Wireless DMX Module, DMX Module, Module |