SPECIFICATIONS

Brief introduction

This module can easily achieve 232 signals and 485 signals to each other, with industrial-grade protection, has been shipped in bulk, stable and reliable performance.

Power supply scheme.

Type A: Voltage range: 475-5.25V.

Type B: Voltage range: 7.5-26V.

Characteristics

1, all chips we guarantee that the new original imported industrial-grade chips, ultra-long-distance transmission.

2, with RXD, TXD, power three LED indicators, serial input protection; 3, the chip has a limit swing rate driver, minimise EMI, and reduce the signal reflection caused by improper terminal matching cable, so that the error-free signal transmission rate up to 500Kbps.

4, with 1/4 unit load receiver input impedance, support for multi-computer communication, allowing to be connected to a maximum of 128 devices on the bus.

5、Industrial grade chip operating temperature can reach -40C to +85C

6, the module can be hot swappable, there will be no other 485 chip hot plugging the phenomenon of signal bolting.

7, with 120Q termination resistance (line length of more than 200 metres, more stable, reduce the BER);.

8, the use of transient suppression TVS 600W diode, over-voltage protection performance is better: 9, the use of 10Q current protection resistor, chip design to improve the integrity of the 485 signal; 10, RS485, TTL signals, all the single-sided alignment, to ensure the signal quality, improve signal integrity; 11, a large area of copper paving, to prevent the hot plugging phenomenon of copper.

11, large-area copper, to prevent signal interference.

12, supports a variety of baud rate: 300/600/1200/2400/4800/9600/19200/38400/57600/115200/230400/460800/921600, etc.:.

Wiring Description

232 terminal.

R and T: RS232 bus receive and transmit, and other RS232 modules need to be connected to the cross again, that is, RX connected to TX.

G is the ground of 232 terminal, connect to external negative pole.

V:Positive terminal of module's power supply, connect to the positive terminal of external power supply.

485 terminal:

A and B:DATA+(A) and DATA-(B) of RS485 bus, 485 needs A to connect to A and B to connect to B;

G:RS485 reference ground, generally can be left unconnected.

Dimension

Thickness:11.3MM(terminal part)

Thickness:3.75MM(highest part of components)