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915mhz Telemetry Modem RS232 / RS485 800m - 1200m For Led Display

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Good quality Wireless RF Module for sales
Good quality Wireless RF Module for sales
We got package and tested today ,thanks for your prompt delivery, the modules are in stable performance .Great!

—— K. Sardadvar

Thank you for your technical support ,the modules work well .And Looking forward the next cooperation .

—— Nissim

With many thanks to JZC ,we are satisfied with the low price but high quality module.We would place an large order for our next project .Thanks!

—— Olivier

915mhz Telemetry Modem RS232 / RS485 800m - 1200m For Led Display


Large Image :  915mhz Telemetry Modem RS232 / RS485 800m - 1200m For Led Display Get Best Price

Product Details:
Place of Origin: Guangdong,China
Brand Name: JZX
Certification: CE
Model Number: JZX871
Payment & Shipping Terms:
Minimum Order Quantity: 20Pieces
Price: Contact us
Packaging Details: Cardboard Box
Delivery Time: 2-3 working days
Payment Terms: Western Union, T/T
Supply Ability: 10000pcs / Month
Detailed Product Description
Voltage: 5V Interface: TTL, RS232, RS485
Case: No Sensitive: -121dbm
Range: 800-1200m Antenna: SMA Antenna
High Light:

wireless transmitter and receiver module


Long Range rf module


915mhz Telemetry Modem RS232 / RS485 800m  - 1200m For Led Display


JZX871 set parameters, the market is no longer used wireless modules used in the traditional way to 

change the parameters of the jumper, causing long-term use because it brings bad, options less dynamic 

change is not easy, a lot of inconvenience. JZX871 using the serial port setting parameters easy and 

quick, easy set refers to the chip embedded in the user program and operating software in the 

background. Meanwhile module 1200/2400/4800/9600/19200/38400bps six kinds of rate and 8 frequency provide UART / TTL, RS232, RS485 three kinds of interfaces. 

Choice for users.


In the work on, JZX871 There are two ways of working, first for the conventional model, which Module is 

powered On, is in receive mode; you also can be sending data. The second is sleep mode, that is, 

through the power module in a dormant state, it must be user-controlled mode Wake-up pin block, 

the module can send and receive data.    In the application of JZX871 module, the module uses a wide 

voltage range, but also be divided into two kinds of voltage, the first for the 5V power supply module, 

also known as conventional module, the voltage of DC 4.5-5.5V. 


The second is 3V power supply modules, custom module for the user, the voltage of DC 2.7-3.3V; 

users in the use of power to DC power supply, the current must be greater than 50mA, but to choose 

a good power supply ripple.



Quick Details:


※Frequency: 430-434MHz

※ Distance:1200m(1200Bps)

※ Modulation:GFSK

※ Transparent transmission

※ Built-in watchdog to ensure long-term reliable operation

※ UART/TTL,RS232,RS485  Interface

※ Convenient and flexible

※  Almost 512bytes data buffer

※ Suitable for built-in installation



915mhz Telemetry Modem RS232 / RS485 800m  - 1200m For Led Display915mhz Telemetry Modem RS232 / RS485 800m  - 1200m For Led Display
 915mhz Telemetry Modem RS232 / RS485 800m  - 1200m For Led Display


Trouble and solve ways:


Troubles: Between devices not communicated


Cause and Remedy:

1.  Communication at both ends of the air rate, parity inconsistency

2.  Frequency inconsistency

3.  Without power

4.  Module has destroyed

5.  The pin of sleep mode not set

Contact Details
Shenzhen JZC Telecom Technology CO.,LTD

Contact Person: Miss. Candy

Tel: 86 755 86714296

Fax: 86-755-22676585

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