USB TO 4CH Serial Converter
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Overview
Introduction
The USB TO 4CH Serial Converter is an industrial-grade USB to RS232/485/422 isolated converter and USB to TTL/RS485 converter. It features an original FT4232HL chip, built-in power isolation, ADI magnetic coupling isolation, TVS protection circuits, and an aluminum alloy case design. The USB TO 4CH Serial Converter is user-friendly with zero-delay automatic receive and transmit conversion. It is known for its fast, stable, reliable, and secure communication capabilities, making it suitable for various industrial control devices or applications with high communication requirements.
Feature
- Adopts original FT4232HL chip, fast communicating, stable and reliable, better compatibility.
- Supports USB to a 4-ch multi-functional serial port, convenient for expanding or debugging various industrial serial port devices.
- Supports USB to 1-ch TTL + 1-ch TTL/RS485 + 1-ch isolated RS485/422 + 1-ch isolated RS232/485.
- Onboard unibody power supply isolation, provides stable isolated voltage and needs no extra power supply for the isolated terminal.
- Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, and low power consumption.
- Onboard TVS (Transient Voltage Suppressor), effectively suppresses 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, provide over-current/over-voltage proof, and improve shockproof performance.
- Fully automatic transceiver circuit with no delay, ensures fast and stable communication between the USB port and different interfaces, without interfering with each other.
- Onboard TTL serial 3.3V/5V voltage translator, config the TTL level via a switch.
- 9 LEDs for indicating the power and transceiver status.
- High-quality USB-B connectors, smoothly plug/pull.
- Industrial grade metal case, supports wall-mount installation, solid and beautiful, easy to install.
Parameters
| Product Type | Industrial USB to 4-channel multi-functional serial converter | |||
|---|---|---|---|---|
| USB | Operating voltage | 5V | ||
| Connector | USB-B | |||
| Protection | 200mA self-recovery fuse, isolated output | |||
| PORT A (TTL only) |
TTL(UART) | Operating voltage | 3.3V / 5V | |
| Connector | Screw terminal | |||
| Protection | Clamp protection diode, over-voltage/negative-voltage proof, shockproof | |||
| Transmission mode | Point-to-point | |||
| Baud Rate | 300 bps ~ 12Mbps | |||
| PORT B (TTL/RS485) |
TTL(UART) | Operating voltage | 3.3V / 5V | |
| Connector | Screw terminal | |||
| Protection | Clamp protection diode, over-voltage/negative-voltage proof, shockproof | |||
| Transmission Mode | Point-to-Point | |||
| Baud Rate | 300 bps ~ 12Mbps | |||
| RS485 | ||||
| Connector | Screw Terminal | |||
| Direction Control | Hardware automatic control | |||
| Protection | TVS diode, surge protection & ESD protection | |||
| Matching Resistor | NC by default, reserve 120R resistors that can be enabled by jumper caps | |||
| Transmission Mode | Point-to-Point (485 mode: up to 32 nodes, it is recommended to use repeaters for 16 nodes or more) | |||
| Baud Rate | 300 bps ~ 921600bps | |||
| PORT C (RS485/422) |
Isolated RS485/422 | |||
| Connector | Screw Terminal | |||
| Protection | TVS diode, surge protection & ESD protection, power and signal isolation | |||
| Matching Resistor | NC by default, reserve 120R resistors that can be enabled by jumper caps. | |||
| Transmission Mode | Point-to-point (485 mode: up to 32 nodes, it is recommended to use repeaters for 16 nodes or more; 422 mode: up to 256 nodes, it is recommended to use repeaters for 16 nodes or more.) | |||
| Baud Rate | 300 bps ~ 921600bps | |||
| PORT D (RS232/485) |
Isolated RS232 |
Connector | Screw Terminal | |
| Protection | TVS diode, surge protection & ESD protection, power & signal isolation | |||
| Transmission Mode | Point-to-Point | |||
| Baud Rate | 300 bps ~ 921600bps | |||
| Isolated RS485 | ||||
| Connector | Screw Terminal | |||
| Direction Control | Hardware automatic control | |||
| Protection | TVS diode, surge protection & ESD protection, power & signal isolation | |||
| Matching Resistor | NC by default, reserve 120R resistors that can be enabled by jumper caps. | |||
| Transmission Mode | Point-to-Point (485 mode: up to 32 nodes, it is recommended to use repeaters for 16 nodes or more) | |||
| Baudrate | 300 bps ~ 921600bps | |||
| Indicator | PWR | Red power indicator, light up when there is a USB connection and voltage is detected. | ||
| TXD | Green TX indicator, lights up when the USB port sends data. | |||
| RXD | Blue RX indicator, light up when the device ports send data back. | |||
| Environment Requirements | Temperature Range | -15 ~ 70℃ | ||
| Operating System | Mac, Linux, Android, Windows 11 / 10 / 8.1 / 8 / 7 | |||
Interface Introduction
Dimensions
Driver Installation
- Download the VCP Driver:
- Double-click CDM212364_Setup.exe to install by steps.
- Accept the agreement and keep clicking on "Next".
- Connect the computer and device, and you can find the new 4 COM ports in the Device Manager (If there is only one COM port after a while and cannot show more COM ports after trying, you can operate it according to FAQ).
SSCOM Usage
Preparation
- Open SSCOM.
- Select the corresponding COM port based on the desired functionality. In most cases, the identified four COM port numbers are recognized from small to big, and labeled as Port A through Port D.
USB TO 4CH Serial Converter - PORT Communication Mode Port A TTL Port B RS485 TTL Port C RS485 RS422 Port D RS485 RS232
- You can check which Port corresponds to the COM port using Device Manager.
- Check which Port corresponds to COM8.
- You can find that the COM8 corresponds to Port D.
TTL (UART) Communication
The following introduces how to use the TTL of Port A to communicate with the TTL of Port B.
Hardware Connection
USB TO 4CH Serial Converter - PORT A USB TO 4CH Serial Converter - PORT B Port A - ＧＮＤ Port B - ＧＮＤ Port A - TX Port B - RX Port A - RX Port B - TX
Software Operation
- Enable two SSCOMs:
- Respectively select the corresponding COM ports for Port A and Port B.
- Input the characters to be transmitted, check Show Time and Packet, and then click on OpenCOM.
- Both SSCOMs are set to transmit at 100ms intervals, and you can observe the phenomenon of mutual sending and receiving.
RS485 Communication
The following demonstration involves using the RS485 of Port B to communicate with the RS485 of Port C.
Hardware Connection
USB TO 4CH Serial Converter - PORT B USB TO 4CH Serial Converter - PORT C Port B - GND Port C - GND Port B - A+ Port C - A+ Port B - B- Port C - B-
Software Operation
- Enable two SSCOMs.
- Respectively select the corresponding COM ports for Port A and Port B.
- Select the baud rate as 115200, enter the characters you want to send and check Show Time and Packet for a more intuitive view. Now, click on OpenCOM.
- Select one SSCOM to transmit at 100ms intervals, and you can observe the phenomenon of mutual sending and receiving.
RS422 Communication
The following introduces the self-transmission on RS422 of Port C.
Hardware Connection
USB TO 4CH Serial Converter - PORT C USB TO 4CH Serial Converter - PORT C Port C - RA Port C - TA Port C - RB Port C - TB
Software Operation
- Enable a SSCOM.
- Select the corresponding COM port to the Port C.
- Select the baud rate as 115200, input the characters to be sent, check "Show Time and Packet", and click on "OpenCOM".
- Set the SSCOM to transmit at 100ms intervals, and you can observe the phenomenon of self-transmission.
RS232 Communication
The following introduces the self-transmission of the RS232 of Port D.
Hardware Connection
USB TO 4CH Serial Converter - PORT D USB TO 4CH Serial Converter - PORT D Port D - RX Port D - TX
Software Operation
- Enable a SSCOM.
- Respectively select the corresponding COM port for Port D.
- Select the baudrate as 115200, input the characters to be sent, check "Show Time and Packet" for clear displaying, and then click on "OpenCOM".
- Both SSCOMs are set to transmit at a 100ms interval, and you can observe the phenomenon of mutual sending and receiving.
Resource
Software
Driver
- VCP Driver (Or you can download it from FTDI website, and you can download the corresponding drivers for other systems on this website.)
- Support driver-free on Linux systems.
Software
Datasheet
STP File
FAQ
- It may be caused by a corrupt registry, and you can address it by performing the following steps:
1. Download the registry-related demo and run it.
2. If there is a pop-up window, please allow the demo to run.
3. Download Configuration Software to select CDMUninstaller.exe and open. (If CDMUninstaller.exe can not successfully run, please use CDMuninstallerGUI.exe.)
4. Configure and execute (please erase the value of "Product ID" -> Click "Add" -> ③ -> Click "Remove Devices" -> OK)
5. If the CDMUninstaller.exe can not successfully run (as the following shows), please use CDMuninstallerGUI.exe.
6. Reinstall the driver. (If the four COM ports cannot be recognized, perform this operation again.)
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Support
Technical Support
If you need technical support or have any feedback/review, please click the Submit Now button to submit a ticket, Our support team will check and reply to you within 1 to 2 working days. Please be patient as we make every effort to help you to resolve the issue.
Working Time: 9 AM - 6 PM GMT+8 (Monday to Friday)