The USB to RS232 Converter with Isolation and Protection adopts the original CH343G chip for fast communication, stability, and reliability. It features onboard unibody power supply isolation, providing stable isolated voltage without the need for an additional power supply. The onboard unibody digital isolation allows signal isolation, ensuring high reliability, strong anti-interference, and low power consumption. With the onboard TVS (Transient Voltage Suppressor), the converter effectively suppresses surge voltage and transient spike voltage in the circuit, offering lightning-proof and ESD protection. It also includes onboard self-recovery fuse and protection diodes, ensuring stable current/voltage outputs, providing over-current/over-voltage proof, and improving shock resistance. The converter features a fully automatic transceiver circuit with no delay, enabling fast and stable communication between the USB port and different interfaces without interference. It has an onboard TTL serial 3.3V/5V voltage translator that can be configured via a switch. The converter comes in an aluminium alloy enclosure with sandblasting and anodic oxidation, featuring CNC process opening for a solid and durable construction. It includes 3 LEDs for indicating power and transceiver status. The high-quality USB-B and RS232 connectors allow for smooth plug/pull operation.
Features
-
Adopt original CH343G inside, fast communicating, stable and reliable, better compatibility
-
Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
-
Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
-
Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & ESD protection
-
Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance
-
Fully automatic transceiver circuit with no delay, ensures the USB port communicates with different interfaces fastly and stably, without interfering each other
-
Onboard TTL serial 3.3V/5V voltage translator, config the TTL level via switch
-
Aluminium alloy enclosure with sand blasting and anodic oxidation, CNC process opening, solid and durable
-
3 LEDs for indicating the power and transceiver status
-
High quality USB-B and RS232 connectors, smoothly plug/pull
Package Contents
- USB Converter x1
- USB Cable ~1.2m x1
Resources
Specifications
| PRODUCT TYPE |
Industrial grade digital isolated converter |
| USB |
Operating voltage |
5V |
| Connector |
USB-B |
| Protection |
200mA self-recovery fuse, isolated output |
| RS232 |
Connector |
DB9 male |
| Protection |
TVS diode, surge protection & ESD protection |
| Transmission mode |
Point-to-point |
| Baud rate |
CH343G: up to 600000 bps (not full band) |
| RS485 |
Connector |
Screw terminal |
| Pins |
A+/B-/GND |
| Direction control |
Hardware automatically discriminates and controls the direction of data transmission |
| Protection |
600W lightningproof and surge-suppress, 15KV ESD protection (reserved 120R balancing resistor solder pads |
| Transmission mode |
Point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more) |
| Baud rate |
CH343G: up to 2 Mbps (not full band) |
| TTL (UART) |
Operating voltage |
3.3V / 5V |
| Connector |
Screw terminal |
| Pins |
TXD, RXD, GND, 5V |
| Protection |
clamp protection diode, over-voltage/negative-voltage proof, shock resistance |
| Transmission mode |
Point-to-point |
| Baud rate |
CH343G: up to 2 Mbps (not full band) |
| INDICATORS |
PWR |
Red power indicator, light up when there is USB connection and voltage is detected |
| TXD |
Green TX indicator, light up when the USB port sends data |
| RXD |
Blue RX indicator, light up when the device ports send data back |
| OPERATING ENVIRONMENT |
Temperature |
-15℃ ~ 70℃ |
| Humidity |
5%RH ~ 95%RH |
| OPERATING SYSTEM |
Mac, Linux, Android, Windows 11 / 10 / 8.1 / 8 / 7 |
Industrial Grade Isolated USB Converter
USB TO RS232/485/TTL
Stable Transmission | Multiple Devices Applicable | Multi-OS Compatible
Original Industrial Grade Chip
Onboard Original CH343 Chip
Fast Communication, Stable & Reliable, Better Compatibility
Safer Isolated Design
- Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
- Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
Multi-Protocol & Multi-Type Conversion
USB TO RS232, RS485 Or TTL(UART)
RS232, RS485 Or TTL(UART) TO USB
Multiple Protection, Safe And Stable
Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & ESD protection. Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance.
Multi System Support
Supports Mac, Linux, Android, Windows 11 / 10 / 8.1 / 8 / 7, Etc.
Pinout Definition
Working Status Indicators
Onboard 3 LEDs For Indicating The Power And Transceiver Status
Aluminium Alloy Enclosure
Aluminium Alloy Enclosure With Sand Blasting And Anodic Oxidation
Solid And Durable, Fashion And Good Hand Feeling
Interface Introduction
Outline Dimensions
FAQ
Question:Does it support Linux system?
Answer:
Multi-system compatibility, support Win7/8/8.1/10, Mac, Linux, Android, WinCE, and other systems.
Question:What should I do if the RS485 communication is abnormal?
Answer:
If the short-distance communication is abnormal, remove the 120-ohm terminal matching resistance of RS485; if the long-distance communication is abnormal, connect the 120-ohm terminal matching resistance of RS485.
Question:Does it support USB to RS232, RS485 and TTL at the same time?
Answer:
No, RS232, RS485 and TTL can be received at the same time but cannot be sent at the same time.
Question:Does it support RS232, RS485 and TTL interchange?
Answer:
No, RS232, RS485 and TTL cannot be converted to each other, but USB to RS232, RS485 or TTL is supported.
