RS485 to RS232

Features

1)Port-powered from RS232 port (TXD,RTS,DTR): no external power is necessary;

2)Convert RS-232(TXD,RXD signal) to RS-485 signal;

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

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

5) Point to multi point, support 128 nodes loopback.

Introduction

The TLC485 is a bi-directional port-powered RS232 to RS485 converter. 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.

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, 2 wire half-duplex

Transfer 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 side: 1.2Km

                                                     RS-232 side: no less than 5m

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 RS-232 port 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                90.0mm×33.0mm×16.5mm(DB9)

Material                        Plastic (shell)

Weight                         40g

Warranty                    5 years

Approvals                   FCC, CE, RoHS

Packing List

1) 3onedata Serial Converter TLC485×1

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

3) User manual×1