RS232 TO RS485 Adapter (B) (23376)
RS232 TO RS485 Adapter (B) (23376)
SKU: 2664
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Description
RS232 to RS485 Converter - Active Digital Isolation, DIN Rail Mount
Serial Port Conversion for Industry, Agriculture, IoT, etc.
Key Features
- Compatible with RS232/RS485 standards — converts RS232 signal to balanced differential RS485 signal
- Stable data transmission at 300–115200 baud rate
- Onboard monolithic isolated power supply — provides stable isolated voltage without extra power supply for the isolated terminal
- Onboard monolithic digital signal isolation — high reliability, powerful anti-interference, low power consumption
- Onboard TVS (Transient Voltage Suppressor) — effectively suppresses surge voltage and transient spikes, lightning and ESD protection
- Onboard self-recovering fuse and protection diodes — stable output current/voltage, over-current and over-voltage protection, enhanced impact resistance
- Industrial ABS housing for DIN rail mount — compact size, easy installation, high cost-effectiveness
Technical Specifications
| Device Type | Active electromagnetically isolated asynchronous bidirectional RS232 to RS485 converter |
| Power Interface | 6–36V DC, with reverse polarity protection |
| Baud Rate | 300–115200 bps |
| Device Port | Compatible with RS232/RS485 standards |
| RS232 Port | |
|---|---|
| Connector | Screw terminal block |
| Protection | Signal filtering, anti-interference, ESD protection |
| Transmission Distance | ~15 m |
| Transmission Mode | Point-to-point |
| RS485 Port | |
| Connector | Screw terminal block |
| Direction Control | Automatic hardware control |
| Protection | 600W lightning and surge protection, 15KV ESD protection |
| Terminal Resistor | 120 Ω, switchable |
| Transmission Distance | ~1.2 km |
| Transmission Mode | Point-to-multipoint (up to 32 nodes; for 16 or more nodes, repeaters are recommended) |
| Appearance | |
| Housing | ABS housing for DIN rail mount |
| Dimensions | 91.6 × 23.3 × 58.7 mm |
Main Function
Converts RS232 signal to balanced differential RS485 signal — for interface conversion, expanding nodes, and long-distance communication.
Data Transmission up to 1200 m
Stable transmission at 300–115200 bps: RS485 range is about 1200 m, RS232 range is about 15 m.
DIN Rail Mount
Convenient combination of multiple serial servers on a DIN rail — maximum deployment flexibility.
Multi-level Protection — Reliable and Stable Operation
Built-in galvanic isolation for power and signal ensures stable isolated voltage, high reliability, and powerful anti-interference. Built-in lightning protection and TVS diodes effectively suppress surge voltage and transient spikes, providing lightning and electrostatic discharge protection. Built-in self-recovering fuse and protection diodes guarantee stable output current and voltage, overload protection, and enhanced impact resistance.
Interface Description
RS232 TO RS485 (B)
| Top Screw Terminal Block | Bottom Screw Terminal Block | ||
|---|---|---|---|
| VCC | Power input DC 6–36V |
120R | 120Ω resistor switch |
| GND | Ground / RS232 signal ground | SGND | RS485 signal ground |
| TXD | RS232 data transmit pin | A+ | RS485 differential signal A+ |
| RXD | RS232 data receive pin | B- | RS485 differential signal B- |
Connection Topology
RS232 to RS485 ConversionConnect to a host, PLC, or other device with an RS232 port — RS232 is converted to RS485 for half-duplex point-to-point communication with external RS485 devices.
Connect to a host, PLC, or other device with an RS232 port — RS232 is converted to RS485 for half-duplex point-to-multipoint communication with external RS485 devices.
Application Examples
The RS232 to RS485 converter is widely used for point-to-point, point-to-multipoint, and cascaded long-distance networks between two hosts or between a host and a microcontroller/peripheral device. Also suitable for scenarios requiring RS232 to RS485 conversion: industrial automation, IoT, etc.
Dimensional Drawing
Description
RS232 to RS485 Converter - Active Digital Isolation, DIN Rail Mount
Serial Port Conversion for Industry, Agriculture, IoT, etc.
Key Features
- Compatible with RS232/RS485 standards — converts RS232 signal to balanced differential RS485 signal
- Stable data transmission at 300–115200 baud rate
- Onboard monolithic isolated power supply — provides stable isolated voltage without extra power supply for the isolated terminal
- Onboard monolithic digital signal isolation — high reliability, powerful anti-interference, low power consumption
- Onboard TVS (Transient Voltage Suppressor) — effectively suppresses surge voltage and transient spikes, lightning and ESD protection
- Onboard self-recovering fuse and protection diodes — stable output current/voltage, over-current and over-voltage protection, enhanced impact resistance
- Industrial ABS housing for DIN rail mount — compact size, easy installation, high cost-effectiveness
Technical Specifications
| Device Type | Active electromagnetically isolated asynchronous bidirectional RS232 to RS485 converter |
| Power Interface | 6–36V DC, with reverse polarity protection |
| Baud Rate | 300–115200 bps |
| Device Port | Compatible with RS232/RS485 standards |
| RS232 Port | |
|---|---|
| Connector | Screw terminal block |
| Protection | Signal filtering, anti-interference, ESD protection |
| Transmission Distance | ~15 m |
| Transmission Mode | Point-to-point |
| RS485 Port | |
| Connector | Screw terminal block |
| Direction Control | Automatic hardware control |
| Protection | 600W lightning and surge protection, 15KV ESD protection |
| Terminal Resistor | 120 Ω, switchable |
| Transmission Distance | ~1.2 km |
| Transmission Mode | Point-to-multipoint (up to 32 nodes; for 16 or more nodes, repeaters are recommended) |
| Appearance | |
| Housing | ABS housing for DIN rail mount |
| Dimensions | 91.6 × 23.3 × 58.7 mm |
Main Function
Converts RS232 signal to balanced differential RS485 signal — for interface conversion, expanding nodes, and long-distance communication.
Data Transmission up to 1200 m
Stable transmission at 300–115200 bps: RS485 range is about 1200 m, RS232 range is about 15 m.
DIN Rail Mount
Convenient combination of multiple serial servers on a DIN rail — maximum deployment flexibility.
Multi-level Protection — Reliable and Stable Operation
Built-in galvanic isolation for power and signal ensures stable isolated voltage, high reliability, and powerful anti-interference. Built-in lightning protection and TVS diodes effectively suppress surge voltage and transient spikes, providing lightning and electrostatic discharge protection. Built-in self-recovering fuse and protection diodes guarantee stable output current and voltage, overload protection, and enhanced impact resistance.
Interface Description
RS232 TO RS485 (B)
| Top Screw Terminal Block | Bottom Screw Terminal Block | ||
|---|---|---|---|
| VCC | Power input DC 6–36V |
120R | 120Ω resistor switch |
| GND | Ground / RS232 signal ground | SGND | RS485 signal ground |
| TXD | RS232 data transmit pin | A+ | RS485 differential signal A+ |
| RXD | RS232 data receive pin | B- | RS485 differential signal B- |
Connection Topology
RS232 to RS485 ConversionConnect to a host, PLC, or other device with an RS232 port — RS232 is converted to RS485 for half-duplex point-to-point communication with external RS485 devices.
Connect to a host, PLC, or other device with an RS232 port — RS232 is converted to RS485 for half-duplex point-to-multipoint communication with external RS485 devices.
Application Examples
The RS232 to RS485 converter is widely used for point-to-point, point-to-multipoint, and cascaded long-distance networks between two hosts or between a host and a microcontroller/peripheral device. Also suitable for scenarios requiring RS232 to RS485 conversion: industrial automation, IoT, etc.
Dimensional Drawing
