TTL UART to RS232 DB-9 Pin Male / Female Conversion Converter MAX232/SP3232 Serial Adaptor Quality High-Speed CTS/RTS

Type A
Description:
Core chip: Male(SP3232), Female(MAX3232)
Power Supply:  DC3.3V to 5.5V. If the voltage is higher than 5.5V, it will burn the chips directly when you plug it.
Operating temperature: -40℃ to 85℃
Input Port: TTL Level interface
Output Port: RS232 interface
RS232 Interface: DB9 Connector Male Pin
TTL Level Interface: 4Pin Male Header (VCC GND TXD RXD)

Type B
Description:
This module can achieve mutual conversion between TTL level and RS232 level. The RS-232 side is a standard male/female connector, which is convenient for connecting to external equipment. Integrated RTS/CTS flow control and power supply, transmit and receive indicator lights. With four M3 positioning holes, the original chip, the speed can be as high as 500KHZ (460800bps).

The main feature

● Original imported SP3232 chip, original Samsung capacitor, brand new material, stable speed can reach 460800bps (4 times of 115200)

● With hardware CTS/RTS flow control pin control (can also be used to convert a second TTL/232 when not in use).

● Integrated power supply / send / receive three indicator lights of different colors to facilitate monitoring of communication status.

● Provide two different DR9 interfaces, rivet type and stud type, to adapt to equipment with different interfaces.

● With 4 mounting screw holes, easy to install and use.

Description pin:

● Decoder: 3-5.5V power supply positive
● Gnd: the negative pole of the 3-5.5V power supply.
● Tx: TTL signal flow in.
● Rx: TTL signal flow.
● Cts: flow control signal, outgoing (not necessary to call, you can't call)
● Rts: flow control signal, flow (not necessary to call, you can't call)

Customers who do not understand hardware flow control can ignore CTS/RTS and leave it offline, which will not affect normal communication.