Full-duplex Wireless RS485/RS232/TTL Module

Specifications

Instruction:

SG-303 is a data radio module, adopts double phase-lock loop, double VCO structure, high stability TXCO. With advanced arithmetic fault-rectify system in software design, it has high stability and reliability. This module is usually used for industry control, water conservancy, electric, oil field management, wireless alarm so on. Moreover, we can extend its functions and ODM products for you according to your specific application.

Special Features:

Specification:

Usage:

1 Interfaces: 

2 Connection Definition with terminal

The definitions and connection methods with terminals are shown in the following:

3 Setting of frequency, interface, and data format

Before using SG-303, users can use our software to setting frequency value, interface rate and data format.

A. Users can program any frequency value in the frequency range. Before ordering, clients need confirm the frequency range.

B. Users can choose the interface rate according to requirement.

C. Users can change the data format individually.

4 Supported  protocol  and  Transmit  capability

SG-303 transceivers offer transparent protocol to support various applications and protocols of users. If the user needs to decrease his cost or ease the workload of terminal CPU, we can add other specific functions based on the transparent protocol, such as addressing, data acquisition, command interpretation and so on.

5 Description of Indicator light

a. The red and green lights will keep on about 50Ms when power suppy.

b. The red light is normally on when transmitting data, while the red light will crush out after ending the data.

c. The green light is normally on when receiving the air signal, while the green light will crush out after receiving the air signal.

Replacement

Influence the second sale of products do not belong to the category of return within 30 days you get this product. Such as appearance injury, High-voltage fuse, Damp, Broken seals, soaking,and so on. Transportation costs of replacement, repairment etc. Paid by the buyer!!!

Warranty

One year free warranty, 3 months for spare parts. We only charge for replacement parts cost when exceed one year.

Shippment

1.      Items are only shipped after all payments are received by DHL, UPS, FEDEX etc. within 1~7 work day.

2.      Free shipping to select countries, please check carefully the shipping & packing in detail.

3.      For dispatching smoothly and safety, we have the final decision on the selection of shipping company.

4.      Please do kindly notice that there maybe a little difference in transportation time by the reason as climate, accident or other issues, sorry for not responsible for any reason of delays.