USB to RS485/422 Converter Waveshare 23949
USB to RS485/422 Converter Waveshare 23949
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Description
USB TO RS485/422
Industrial Isolated Converter
Utilizes original FT232RNL and SP485EEN chip solutions, providing stable communication with integrated galvanic isolation, lightning protection, and anti-static protection. An ideal choice for industrial equipment and/or applications with high communication requirements.
Features at a glance
- Original FT232RL and SP485EEN chips. Fast communication, stable and reliable, better compatibility
- Built-in monoblock power isolation, provides stable isolated voltage, no need for additional power supply for the isolated terminal
- Built-in monoblock digital isolation, provides signal isolation, high reliability, strong anti-interference, low power consumption
- Built-in TVS (transient voltage suppressor), effectively suppresses surge voltage and transient voltage in the circuit, lightning protection and anti-static protection
- Built-in self-healing fuse and protection diodes, provides stable current/voltage output, overcurrent/overvoltage protection, improved shock protection
- Built-in 15 kV ESD protection and 600W lightning and surge protection
- Built-in 120Ω terminal resistor on RS485/RS422 ports, disabled by default, configurable by jumper
- 3 LED indicators for power and transceiver status
- Industrial ABS enclosure for DIN rail mounting, compact, easy to install, cost-effective
Technical specifications
| PRODUCT TYPE | Industrial Isolated USB to RS485/422 Converter | |
| Baud Rate | FT232RNL | 300 bps ~ 3 Mbps |
| Host Port | USB | |
| Device Port | RS485/422 | |
| USB | Operating Voltage | 5 V |
| Connector | USB-B | |
| Protection | 200mA self-healing fuse, ESD protection | |
| Transmission Distance | Approximately 5 m | |
| RS485/422 | Connector | Screw terminal |
| Contacts | A+, B-, PE | |
| Direction Control | Hardware auto control | |
| Protection | 600W lightning and surge suppression, 15 kV ESD protection (120 Ohm terminal resistor) | |
| Transmission Distance | Approximately 1.2 km (at low speed) | |
| Transmission Mode | Point-to-multipoint (up to 32 nodes, for 16 or more nodes, repeaters are recommended) | |
| LED Indicators | PWR | Red power indicator, lights up when USB is connected and voltage is detected |
| TXD | Green TX indicator, lights up when data is transmitted via the USB port | |
| RXD | Blue RX indicator, lights up when data is received from the device ports | |
| Operating Environment | Temperature | -15°C ~ 70°C |
| Humidity | 5% RH ~ 95% RH | |
| Operating System | Mac, Linux, Android, WinCE, Windows 11 / 10 / 8.1 / 8 / 7 | |
| Appearance | Enclosure | Rail-mount ABS enclosure, suitable for 35mm DIN rail |
| Dimensions | 81.9 x 54.0 x 32.0 mm | |
Original Chips Onboard
Original FT232RL and SP485EEN chips onboard, providing better stability and compatibility
Galvanically Isolated Design
- Built-in monoblock power isolation, provides stable isolated voltage, no need for additional power supply for the isolated terminal
- Built-in monoblock digital isolation, provides signal isolation, high reliability, strong anti-interference, low power consumption
Multiple Protection, Safe and Stable Operation
Built-in TVS (transient voltage suppressor), effectively suppresses surge voltage and transient voltage in the circuit, lightning protection and anti-static protection. Built-in self-healing fuse and protection diodes, provides stable current/voltage output, overcurrent/overvoltage protection, improved shock protection.
Transmission Distance Up to 1.2 km
The USB signal can be converted into a balanced differential RS485/422 signal, the transmission speed is stable. The transmission distance is about 1.2 km for RS485/422 and about 5 meters for USB.
Supports Multiple Operating Systems
Supports Mac, Linux, Android, WinCE, Win11/10/8.1/8/7/XP, etc.
Interface Description
| Interface | Signal | Description |
|---|---|---|
| RS422 | PE | Signal Ground |
| T+ | Positive differential transmission signal | |
| T- | Negative differential transmission signal | |
| R+ | Positive differential reception signal | |
| R- | Negative differential reception signal | |
| RS485 | PE | Signal Ground |
| A+ | Positive differential signal A+ | |
| B- | Negative differential signal B- |
Indicator Description
RXD: Blue blinking - Receiving data TXD: Green blinking - Transmitting data PWR: Red light - Power connected USB: Connects to host USB port
Wall-mount and Rail-mount
Supports wall mounting and 35mm DIN rail mounting. Compact industrial ABS enclosure, easy to install.
Product View
Outline Dimensions
81.9 x 54.0 x 32.0 mm
Package Includes
- USB TO RS485/422 x 1pc
- USB-A Male to USB-B Male Cable ~1.2m x 1pc
- Screwdriver x 1pc
Description
USB TO RS485/422
Industrial Isolated Converter
Utilizes original FT232RNL and SP485EEN chip solutions, providing stable communication with integrated galvanic isolation, lightning protection, and anti-static protection. An ideal choice for industrial equipment and/or applications with high communication requirements.
Features at a glance
- Original FT232RL and SP485EEN chips. Fast communication, stable and reliable, better compatibility
- Built-in monoblock power isolation, provides stable isolated voltage, no need for additional power supply for the isolated terminal
- Built-in monoblock digital isolation, provides signal isolation, high reliability, strong anti-interference, low power consumption
- Built-in TVS (transient voltage suppressor), effectively suppresses surge voltage and transient voltage in the circuit, lightning protection and anti-static protection
- Built-in self-healing fuse and protection diodes, provides stable current/voltage output, overcurrent/overvoltage protection, improved shock protection
- Built-in 15 kV ESD protection and 600W lightning and surge protection
- Built-in 120Ω terminal resistor on RS485/RS422 ports, disabled by default, configurable by jumper
- 3 LED indicators for power and transceiver status
- Industrial ABS enclosure for DIN rail mounting, compact, easy to install, cost-effective
Technical specifications
| PRODUCT TYPE | Industrial Isolated USB to RS485/422 Converter | |
| Baud Rate | FT232RNL | 300 bps ~ 3 Mbps |
| Host Port | USB | |
| Device Port | RS485/422 | |
| USB | Operating Voltage | 5 V |
| Connector | USB-B | |
| Protection | 200mA self-healing fuse, ESD protection | |
| Transmission Distance | Approximately 5 m | |
| RS485/422 | Connector | Screw terminal |
| Contacts | A+, B-, PE | |
| Direction Control | Hardware auto control | |
| Protection | 600W lightning and surge suppression, 15 kV ESD protection (120 Ohm terminal resistor) | |
| Transmission Distance | Approximately 1.2 km (at low speed) | |
| Transmission Mode | Point-to-multipoint (up to 32 nodes, for 16 or more nodes, repeaters are recommended) | |
| LED Indicators | PWR | Red power indicator, lights up when USB is connected and voltage is detected |
| TXD | Green TX indicator, lights up when data is transmitted via the USB port | |
| RXD | Blue RX indicator, lights up when data is received from the device ports | |
| Operating Environment | Temperature | -15°C ~ 70°C |
| Humidity | 5% RH ~ 95% RH | |
| Operating System | Mac, Linux, Android, WinCE, Windows 11 / 10 / 8.1 / 8 / 7 | |
| Appearance | Enclosure | Rail-mount ABS enclosure, suitable for 35mm DIN rail |
| Dimensions | 81.9 x 54.0 x 32.0 mm | |
Original Chips Onboard
Original FT232RL and SP485EEN chips onboard, providing better stability and compatibility
Galvanically Isolated Design
- Built-in monoblock power isolation, provides stable isolated voltage, no need for additional power supply for the isolated terminal
- Built-in monoblock digital isolation, provides signal isolation, high reliability, strong anti-interference, low power consumption
Multiple Protection, Safe and Stable Operation
Built-in TVS (transient voltage suppressor), effectively suppresses surge voltage and transient voltage in the circuit, lightning protection and anti-static protection. Built-in self-healing fuse and protection diodes, provides stable current/voltage output, overcurrent/overvoltage protection, improved shock protection.
Transmission Distance Up to 1.2 km
The USB signal can be converted into a balanced differential RS485/422 signal, the transmission speed is stable. The transmission distance is about 1.2 km for RS485/422 and about 5 meters for USB.
Supports Multiple Operating Systems
Supports Mac, Linux, Android, WinCE, Win11/10/8.1/8/7/XP, etc.
Interface Description
| Interface | Signal | Description |
|---|---|---|
| RS422 | PE | Signal Ground |
| T+ | Positive differential transmission signal | |
| T- | Negative differential transmission signal | |
| R+ | Positive differential reception signal | |
| R- | Negative differential reception signal | |
| RS485 | PE | Signal Ground |
| A+ | Positive differential signal A+ | |
| B- | Negative differential signal B- |
Indicator Description
RXD: Blue blinking - Receiving data TXD: Green blinking - Transmitting data PWR: Red light - Power connected USB: Connects to host USB port
Wall-mount and Rail-mount
Supports wall mounting and 35mm DIN rail mounting. Compact industrial ABS enclosure, easy to install.
Product View
Outline Dimensions
81.9 x 54.0 x 32.0 mm
Package Includes
- USB TO RS485/422 x 1pc
- USB-A Male to USB-B Male Cable ~1.2m x 1pc
- Screwdriver x 1pc
