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RS232 to RS422/RS485 Converter

View : 247
Type : RS232 to RS422
Description :

This converter realizes RS-232-RS-485/422 active isolation conversion, based on FPGA design, and uses 2500V isolation voltage DC-DC isolation power supply, does not use serial port stealing technology, and the communication signal uses high-speed optocoupler isolation.

Overview

This converter realizes RS-232-RS-485/422 active isolation conversion, based on FPGA design, and uses 2500V isolation voltage DC-DC isolation power supply, does not use serial port stealing technology, and the communication signal uses high-speed optocoupler isolation.

The device has its own line short circuit and data error detection functions. The RS485/422 interface has three levels of lightning protection, and the communication distance is up to 1800 meters, which is widely used in complex industrial systems.

Photo

Features

Based on FPGA design, it can automatically generate a precise RS485 transceiver switch enable signal according to the sent data, and can automatically detect and control the RS-485 data stream. The performance is far better than the ordinary Schmitt trigger enable generation method;

Unique interface adaptive technology, no need to switch settings, freely switch RS-485/RS-422 interfaces;

Built-in line short circuit detection and data error detection function, can detect the line A and B short circuit in RS485, or T+ and T- short circuit and R+ and R- short circuit in RS422, and has indicator lights to indicate it, and can detect the received data error ( The data received by some nodes when the connection 0 is greater than the minimum baud rate (300) for the longest connection 0 time);

RS232-RS485/422 baud rate 300-115.2K and 300-921K adaptive two products are optional;

Adopting isolation voltage 2500V DC-DC power supply, not using serial port to steal electricity, which improves the applicability of the equipment, and the communication signal is isolated by high-speed optocoupler;

Serial port interface three-level lightning protection, anti-radar to IEC61000-4-5 (8/20μS) 6KV, impedance (2Ω) standard;

Wide input voltage range (DC9-55V, AC7-43V), and can automatically detect the polarity of the DC power supply, and built-in self-recovery fuse; support overload protection, anti-reverse protection;

Meet the requirements of industrial level 4 electromagnetic compatibility;

Super lightning protection function: lightning protection, anti-inductive high voltage, anti-surge, etc.;

Rail or wall-mounted installation;

Wide temperature type: working temperature -40℃~ +85℃;

All models have passed the 100% baking machine test.

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:

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: -10 ℃ – +60 ℃

Storage temperature: -40 ℃ – +85 ℃

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

MTBF: > 100,000 hours

Specifications

Product number

FCC-RD

Product Function Description

Adam type RS232 to RS422-485 smart converter

Service 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

Installation way:rail-mounted installation, wall-mounted installation

Weight 

0.25Kg / PCS

Application

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