Optical Isolation RS232 to RS485 Converter --- SW485WA

Specifications

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

Standards: EIA RS-232C, RS-485, RS-422 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
Transfer distance: RS-485 side: 1.2Km, 9600bps
                                  RS-232 side: no less than 5m
Max number of drops: 128 nodes
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 approvals