Port-powered RS-232 to RS-485 Serial Converter(SW485WA)

Features

1)Optical isolation effectively protects RS-232/RS-485 devices from transient surges, ground loop, and remote lightning;

2)Plug-and-Play (Device is hot-pluggable, Data format Auto-sensing & Self-adjusting);

3) Maximum baud rate 38400bps, 1200m(9600bps);

4) Port-powered, no external power or TXD, RTS, DTR required;

5) Data direction auto-turnaround, no flow control is required;

6) 2500V isolation, no power supply needed.

Introduction

The SW485WA is an industrial grade bi-directional port-powered 2500V opto-isolated RS232 to RS485 converter in a 9 pin format. It can convert any standard full duplex RS232C port to any two-wire balanced half duplex RS485 port. In simple terms, it will convert any RS232 signal to a RS485 signal and vice versa. The unit is powered from the RS232 data lines. It also supports data direction auto-turnaround. Therefore, no external power or flow control is required. The data direction auto-turnaround automatically enables the RS485 driver when data is present on the RS232 side making the device plug-and-play, requiring no software drivers. The SW485WA has a DB9 female connector on the RS232 side and either a DB9 male connector or 3 bit terminal block on the RS485 side.

Specification

Parameter

Standards                               EIA RS-232C, RS-485 standard

RS-232 signal                       TX, RX, GND

RS-485 signal                       D+,D-,GND

Working mode                      Asynchronism, point to point or multi point, 2 wire half-duplex

Baud rate                               300~115200bps, auto test serial signal rate detect signal speed automatically, zero delay time

Flow control                           Data direction auto-turnaround, no flow control is required

Max number of drops          128 nodes

Transfer distance                 RS-485/422 side: 1.2Km

                                                 RS-232 side: no less than 5m

Optical isolation                    2500V

Port protect                            1500W surge protection,15KV ESD protection

Connector                              RS-232 side DB9 female

                                                 RS-485 side DB9M( DB9F to 3 bit terminal block)

Power

Power input                         No power supply need, powered from TXD, RTS,DTR

Consumption                     Static less than 10mA, dynamic less than 40mA

Environment

Operating temperature               -10°C to 60°C

Storage temperature                  -40°C to 85°C

Humidity                                        5% to 95% (no condensation)

Appearance

Dimensions                95.0mm×33.0mm×16.5mm

Material                        Plastic (shell)

Weight                         50g

Warranty                    5 years

Approvals                   FCC, CE, RoHS

Packing List

1) 3onedata Serial Converter SW485WA×1

2) Separate terminal block(DB9F to 3 bit)×1

3) User manual×1