Product Category

Got any Questions? Call us Today!

+8618758069661

service@fctel.com.cn

Or leave us a message

Online Message

Industrial RS232 to RS485/RS422 Converter

View : 949
Type : RS232 to RS485 Converter
Description :

This device implements active isolation conversion from RS-232 to RS-485/422, designed based on FPGA technology and powered by a 2500V isolation voltage DC-DC isolation power supply.

Overview

This device implements active isolation conversion from RS-232 to RS-485/422, designed based on FPGA technology and powered by a 2500V isolation voltage DC-DC isolation power supply without using serial port power theft technology. The communication signal is isolated by high-speed optocouplers. The device has built-in circuit short-circuit and data error detection functions. The RS-485/422 interface is protected by three levels of lightning protection and can communicate over distances up to 1800 meters, making it widely used in complex industrial systems.

Features

The device is designed based on FPGA technology and is capable of automatically generating precise RS485 transmit and receive switching enable signals based on the transmitted data. It can automatically detect and control RS-485 data flow, which performs much better than ordinary enable generation methods using Schmitt triggers.

It also has a unique interface adaptive technology that allows users to switch between RS-485/RS-422 interfaces without any switch settings.

The device comes with built-in circuit short-circuit and data error detection functions. It can detect RS485 A-B line short circuit or RS422 T+ and T- short circuit and R+ and R- short circuit. It also has an indicator light to show the detection results and can detect data receiving errors (caused by the longest continuous 0 time greater than the minimum baud rate (300) received when some nodes fail).

It supports two types of RS232-RS485/422 baud rates: 300-115.2K and 300-921K.

It uses a 2500V isolation voltage DC-DC power supply to avoid serial port power theft. The communication signal is isolated by high-speed optocouplers.

The serial port interface has three levels of lightning protection that can withstand up to 6KV impedance (2Ω) standard according to IEC61000-4-5 (8/20μS).

The device has a wide input voltage range (DC9-55V, AC7-43V), and can automatically detect the polarity of the input DC power supply. It has built-in self-recovering fuses, overload protection, and reverse connection protection.

It meets industrial level-four electromagnetic compatibility requirements.

It has excellent lightning protection performance, making it capable of withstanding lightning strikes, high voltage induction, surges, and other interferences.

Rail or wall-mounted installation.

Working temperature -40℃~ +85℃.

The device has passed 100% burn-in tests.

Parameters

● Serial Interface          

Standard

EIA/TIA-232 RS-232 (ITU-T V.28)

EIA/TIA-422 RS-422 (ITU-T V.11)

EIA/TIA-485 RS-485 (ISO/IEC8284)

Serial port Interface

RS-232: socket DB9;

RS-422: 4-wires;

RS-485: 2/4-wires

Followed: SG = Signal Ground

RS-232: TxD(DB9-2), RxD(DB9-3), SG(DB9-5)

Internal loop: RTS to CTS, DTR to DSR and DCD

RS-422: TxD+, TxD-, RxD+, RxD-, SG

RS-485 4 wires: TxD+, TxD-, RxD+, RxD-, SG

RS-485 2 wires: A (corresponding TX+), B (corresponding TX-), SG

RES+, RES-: terminal 120 Ω match resistance enable. The matching resistance device is built-in, and RES+ and RES- can be short-circuited when in use.

 

Indicator Lights           

Name

Color

Status

Description

PWR

 

Green

 

on

Power is connected

off

Power is not connected

TXD

 

Green

 

on

RS232 serial port has data to send

off

RS232 serial port has no data to send

RXD

 

Green

 

on

RS232 serial port has data to receive

off

RS232serial port has no data to receive

ERR

 

 

 

Red

 

 

 

Fast flash

2 data wires of RS422/485 Tx+,Tx- are short-circuited

Slow flash

RS422 Rx+, Rx- data wires are short-circuited

Always on

The data received by some nodes when the connection 0 is greater than the minimum baud rate (300), the longest continuous 0 time

off

Normal working

 

● Environmental Indicators 

Working temperature: -40 ℃ — +85 ℃

Storage temperature: -40 ℃ — +85 ℃

Working humidity: 0% -95% ( no condensation)

MTBF: > 100,000 hours

Specifications

Product Model

FCC-RD

Function Description

Adam type RS232 to RS422-485 smart converter

Port Description

1 RS232 interface; 1 RS485/RS422 interface

Power

Power input DC9-55V AC7-43V,power consumption is less than 2W

Overload protection: support; anti reserve connection: support;

Access terminal: 2-core 5.08mm pitch plug-in terminal

Size

Shell: Adam module

(L*W*H) 72*125*26mm

Weight

0.25Kg / PCS

Application

application of RS232 to RS422/RS485 Converter

                   

Leave a Message

If you are interested in any product, please contact us. We will introduce our products to you in more detail