1-port RS232/485/422 to 4-port RS485/422 HUB(SW4485)

Feature

1) Support two RS-232 and RS-485 PC interfaces , and 4 RS-485 lower position controller ports;

2) Support baud rate from 300bps to 115200bps;

3) Each lower machine interface can be connected to 32 standard RS-485 devices(nodes);

4)Unique automatic circuit reverse alarm detection;

5)Have automatic transceiver conversion function with zero delay;

6)Support hot swap function, plug and play;

7)Interface has 2KVAC isolation protection, 8KV ESD protection (contact discharge) and 2-stage radiation immunity;

8)Industrial design, IP40 protection;

9)Support DIN-Rail and wall mounting installation;

10)Working Temperature: -40~85°C.

Introduction

SW4485 is a RS-485 bus segmentation HUB, specially designed for conforming to RS-485’s large-scale system requirements under the complex electromagnetic environment. Its supporting transmission rates reach up to 115.2Kbps. It adopts transparent transmission in both directions. It can convert 1 RS-485 or RS-232 to 4 RS-485, or transparently transmit any intersected RS-485 signal to RS-485 or RS-232 on PC. Each RS-485 port of its lower position controller has reverse fault alarm and protection function, through which,the network reliability of RS-485 has been improved, and the maintenance time of network has been shortened efficiently. In order to ensure the safety and reliability of data communication, the RS-485 interfaces of SW4485 are supplied with 2KVAC isolation protection, 3 levels of ESD protection and 2 levels of electrostatic radiation protection; they can prevent lighting, common ground and radiated interference, safe and reliable, are suitable for outdoor application.

        SW4485 also provide star-RS485 BUS connection. Users can easily improve the RS-485 BUS structure, split network segment. You can design a unique and reliable RS-485 system through making reasonable use of SW4485.

SW4485 adopts EMC protection design, supports wall-mounting and panel-mounting installation, and can be used at the harsh environment from -40°C to 85°C.

Specification

Communication Parameter

Interface Protocol         EIA RS-2332/485

Interface Number        1x RS-232

                                        1xRS-485

                                        4x RS-485

                                        lower position controller interfaces.

RS-232 signal              TxD, RxD, GND

RS-485 signal              D+, D-, GND

Check                            None, Even, Odd, Space, Mark

Data Bit                         5bit, 6bit, 7bit, 8bit

Stop Bit                         1bit, 1.5bit, 2bit

Baud Rate                    300bps~115200bps

Direction Control         RS-485 adopts data flow to automatic control technology

Transmission Media               twisted-pair shielded cable or UTP 485 dedicated line

Load Capacity              RS-485: 32-node ( can be customized 128 nodes)

Port Protection             2KVAC isolation protection

                                        3-level of ESD protection

                                        2-level of electrostatic radiation protection

Transmission Distance         RS-485:1200m,

                                                    RS-232 : no more than 5m

Interface Mode

RS-232 PC port mode               DB9M Male

RS-485 PC port mode               3PIN terminal block

RS-485 Lower Position Controller port mode                 10 PIN terminal block

Indicator

PWR             power indicator

TXD              data delivery status indicator

RXD             data receiving status indicator

E1~E4         status indicator of RS-485 lower position controller interface

Power

Input Voltage               5VDC

No-load Power           0.455W@5VDC

Full Power                   0.485W@5VDC

Working Environment

Working temperature               -40~85°C

Storage temperature                -45~85°C

Humidity                                      5%~95%( no condensation)

Mechanical Structure

Shell                       IP40 protection grade, high strength metal casing

Installation            Wall-mount and Panel-mount

Weight                   250.8g

Size(H×W×L)        22 mm×69mm×100mm

Industry Standard

EMI                     FCC Part 15, CISPR (EN55022) class A

EMS                   EN61000-4-2 (ESD),Level 3

Shock                IEC60068-2-27

Free Fall           IEC60068-2-32

Shake               IEC60068-2-6

Warranty Period          5 years

Approvals                     CE,FCC,RoHS,UL508(pending)

Packing List

1) 3onedata SW4485 HUB(plus terminal block)×1

2) User Manual×1

3) Certificate×1

4) Warranty card×1

5) Accessories of wall-mounted or panel-mounted installation

6) Warranty card×1