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IoT, RS485 HUB
USR-HUB108S-DC Industrial Grade RS485 Hub
SKU: USR-HUB108S-DC
₹9,086.00
₹7700 + 18% GST
incl. GST
Availability: Available on backorder
Estimated Delivery: Estimated delivery in 2 to 4 weeks
For bulk orders or B2B inquiries, email us: sales@empere.in
USR-HUB108S-DC Industrial Grade RS485 Hub (1 Master to 8 Slaves)
1 Master to 8 Slaves | 3kV Optical Isolation | ±15kV ESD & 600W Surge | DC 9–40V Supply
The USR-HUB108S-DC is an industrial-grade RS485 hub engineered to expand a single master interface into eight independent, optically isolated slave channels via a star bus architecture. Featuring robust 3kV optical isolation (2500Vrms), ±15kV ESD protection, and 600W lightning surge suppression per line, it actively prevents ground loops, mitigates voltage differences, and protects PLCs, energy meters, and sensor nodes across demanding industrial Modbus networks.
Channel Topology
1 Master to 8 Slaves
1 Master to 8 Slaves
Isolation Rating
2500Vrms / 3kV Optical
2500Vrms / 3kV Optical
Surge & ESD Rating
±15kV ESD | 600W Surge
±15kV ESD | 600W Surge
Operating Voltage
DC 9V to 40V (500mA)
DC 9V to 40V (500mA)
Transmission Speed
300 bps to 115.2 Kbps
300 bps to 115.2 Kbps
Channel Capacity
128 Nodes / Channel
128 Nodes / Channel
| Product Model | USR-HUB108S-DC |
| Device Classification | Industrial 8-Channel Isolated RS485 Hub / Repeater / Splitter |
| Interface Standard | TIA/EIA RS-232 and RS-485 compliant via heavy-duty industrial terminal blocks |
| Channel Configuration | 1-Channel RS-485 Master Input to 8-Channel RS-485 Slave Outputs (Star Bus Architecture) |
| Node Support & Cascading | Up to 128 nodes per slave channel; supports multi-node cascading and distributed star topologies |
| Flow Control & Data Handling | Hardware auto-sensing data direction control; integrated serial port buffering; protocol-transparent (Modbus RTU / ASCII / proprietary) |
| Isolation & Surge Suppression | 3kV optical isolation (2500Vrms, 500V DC continuous DC/DC isolation); ±15kV ESD protection; 600W lightning surge suppression per line |
| Transmission Range & Media | 0 to 3 km (adaptive based on 115.2 Kbps down to 300 bps baud rates) via twisted pair or shielded cabling |
| Status Diagnostics | 3 integrated LED status indicators: Power (POW), Data Transmit (TXD), and Data Receive (RXD) |
| Mechanical Dimensions | 100 x 54 x 32 mm with integrated rear clamp and positioning mounting holes |
| Operating Environment | Temperature: -20°C to +75°C; relative humidity: 5% to 95% (non-condensing) |
| Target Applications | Industrial automation, SCADA systems, remote PLC networking, smart utility metering, building management systems (BMS), and security access loops |
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