The SC1M5-4S5 is an industrial-grade, isolated 4-port RS485 hub that expands one RS485 master port into four RS485 slave ports. It effectively facilitates the relaying, expansion, and isolation of RS485 networks.
The SC1M5-4S5 is an industrial-grade, isolated 4-port RS485 hub that expands one RS485 master port into four RS485 slave ports. It effectively facilitates the relaying, expansion, and isolation of RS485 networks.
Designed specifically for the harsh environments of industrial sites, the SC1M5-4S5 active isolated RS485 hub is ideal for applications requiring high reliability and safety. Its photoelectric isolation feature electrically decouples the RS485 master and slave devices, protecting them from damage caused by ground potential differences, static electricity, lightning strikes, or surges. Furthermore, it prevents ground loops—which can arise from ground potential differences between devices—from damaging the RS485 equipment.
Key Functions:
1.Isolation: Effectively isolates the master and slave segments of an RS485 network.
2.Relaying: Extends the communication distance of an RS485 network.
3.Expansion: Expands one RS485 port into four, allowing for a significant increase in the number of RS485 devices within the network.
Technical Features:
1.Provides 2500V voltage isolation between the RS485 master port and the slave ports.
2.Supports up to 32 slave stations across the RS485 master and slave ports.
3.Equipped with a rear-mounted slot for DIN-rail installation.
4.Supports a wide input voltage range of 9–24V.
5.Includes an RS485 polarity reversal indicator: the CH1–CH4 status LEDs will remain lit if the A and B wires are connected in reverse.
Technical Features of SC1M5-4S5
| Physical Interface | RS-485: Terminal block |
| Operation Mode | RS-485: Two-wire (A, B) |
| Communication Rate | 300–921600 bps (auto-adaptive) |
| Supported Points | Supports up to 32 nodes per RS-485 port |
| Communication Distance | 1200 meters (at 9600 bps); communication distance decreases as the data rate increases |
| Isolation Voltage | RS-485 isolation voltage: 2500V |
| ESD Protection | RS-485 protection: 12kV |
| Operation Mode | Half-duplex transparent transmission |
| Supply Voltage | DC 9–24V |
| Operating Temperature | -45°C to +85°C |
| Ambient Humidity | <95% RH |
| Transmission Medium | Standard parallel wires or twisted-pair cables |
| Dimensions | 12.2 cm × 7.2 cm × 3.4 cm |