Introduction
3Wire RS2M2 is a 2-channel isolated RS-485 hub that enables two RS-485 master devices to communicate with one or more slave devices without cross-interference. It ensures that responses from slave devices are sent only to the corresponding master that initiated the request.
The RS2M2 features photoelectric isolation for robust signal integrity, along with 15kV ESD protection and 5kA lightning surge protection to safeguard against electrical disturbances.
Each of the three communication ports includes an LED indicator for real-time monitoring. The hub supports transparent data transmission, with communication format and baud rate adjustable via software.
It is ideal for RS-485-based systems such as industrial automation, remote monitoring, alarm systems, access control, and other control applications
The RS2M2 features photoelectric isolation for robust signal integrity, along with 15kV ESD protection and 5kA lightning surge protection to safeguard against electrical disturbances.
Each of the three communication ports includes an LED indicator for real-time monitoring. The hub supports transparent data transmission, with communication format and baud rate adjustable via software.
It is ideal for RS-485-based systems such as industrial automation, remote monitoring, alarm systems, access control, and other control applications
Features
- Wide Power Input Range
- Supports DC 9–30V input with built- in overcurrent and reverse polarity protection
- High Slave Node Capacity
- Slave communication port supports up to 175 nodes
- Dual RS-485 Master Support
- Enables two RS-485 master devices to communicate simultaneously with one or more slave devices
- Robust Protection Features
- Signal interface includes anti-static, anti-lightning, and anti-surge protection
- Protocol Compatibility
- Supports master-slave protocols such as Modbus
- Dual Electrical Isolation
- Complete electrical isolation between communication and power
- Full isolation between master and slave interfaces
- Independent Port Configuration
- Each of the three communication ports can be configured independently for baud rate and communication format
- High-Performance Architecture
- Built with a 32-bit microcontroller and high-speed optocouplers
- Supports baud rates up to 115,200 bps
US 18928 
GB 16489 
BR 15997 
AU 10054 
CA 9987 
IE 4650 
NZ 4546 
IN 3850 
