The Ebyte E810-U41C industrial isolated USB-C to 4-channel independent RS485 converter adopts CH344Q high-speed USB serial chip, supporting max 6Mbps baud rate, 1500V power isolation plus 3750V signal isolation, EMC Level 3 surge/ESD protection, triple-proof conformal coating, DIN rail & wall dual mounting, 4.5–5.5V USB bus power, -40 to 85 Celsius wide temperature, built-in auto RS485 transceivers for multi-Modbus sensor simultaneous data collection on industrial PC hosts.
| Parameter Category | Parameter Item | Specification Value |
|---|---|---|
| Basic Info | Model Number | E810-U41C |
| Basic Info | Core Chip | CH344Q High-speed USB to 4 UART IC |
| Basic Info | Overall Dimension | 120mm * 72mm * 34mm |
| Interface Spec | USB Interface | USB-C, USB V2.0 High Speed |
| Interface Spec | RS485 Channel Count | 4 Fully Independent Isolated Ports |
| Interface Spec | Terminal Type | 5.08mm Phoenix pluggable terminals |
| Communication | Max Baud Rate | 6000000 bps (6Mbps) |
| Communication | Transceiver Control | Hardware auto TX/RX switch + manual pin control |
| Isolation Protection | Power Isolation | 1500Vrms galvanic isolation |
| Isolation Protection | Signal Isolation | 3750Vrms optoelectronic isolation |
| EMC Protection Grade | ESD Discharge | Contact 4KV, Air gap 8KV |
| EMC Protection Grade | Surge & Pulse Group | Differential 1KV, Common 2KV; 600W TVS lightning guard |
| Electrical Spec | Input Voltage | 4.5V DC ~ 5.5V DC USB bus powered |
| Environmental Spec | Operating Temperature | -40 Celsius ~ 85 Celsius |
| Environmental Spec | PCB Shell Protection | Anti-mold, anti-humidity, anti-salt triple conformal coating |
| Installation | Mounting Method | DIN 35 rail mount + wall fixing holes |
| System Compatibility | Supported OS | Windows, Linux, Mac OS, Android |
| project | illustrate |
| Working voltage | 5V USB interface power supply |
| interface | USB interface: type-c interface communication, version 2.0 |
| RS485 interface: 2 channels are spring terminals; 4 channels are Phoenix plug plug-in terminals | |
| Isolation and protection | 1500Vrms power isolation (only supported by isolated version) |
| 3750Vrms signal isolation (only supported by isolated version) | |
| 600W TVS electrostatic surge protection | |
| PTC short circuit protection | |
| Protection level | Industrial EMC Level 3 |
| Electrostatic contact 4KV, air discharge 8KV | |
| Pulse group differential mode 1KV, common mode 2KV | |
| Working temperature and humidity | -40～+85℃, 5%～95%RH (no condensation) |
| Storage temperature and humidity | -40 ~ +105℃, 5% ~ 95%RH (no condensation) |
Practical Application Scenarios
1. Factory Multi-PLC Modbus RTU Central Debugging & Data Logging
European automation engineers deploy E810-U41C on industrial control laptops to connect four independent Modbus RTU PLC networks simultaneously. Each isolated RS485 channel eliminates cross-bus signal interference and ground loop damage between production line equipment, 6Mbps high baud rate supports fast batch parameter reading of inverters and temperature transmitters. It works with Ebyte EWD95M DIN LoRa DTUs to upload multi-station production data to cloud MES platforms without multiple single-port adapters.
2. Smart Greenhouse Multi-Type Sensor Cluster Data Acquisition
Global agritech integrators use this 4-channel isolated converter to split PC USB-C port into four separate RS485 buses for soil EC sensors, air humidity transducers, CO2 detectors and water level meters. Triple-proof coating withstands high-humidity greenhouse environments, wide -40 to 85 Celsius range adapts cold winter greenhouses, independent channel design avoids sensor bus conflict during round-robin Modbus polling cycles.
3. Urban Substation Multi Smart Energy Meter Concentrator Reading
Municipal power maintenance teams equip field laptops with E810-U41C to read four groups of distributed smart electricity, water and gas meters at one time. 3750V signal isolation blocks high voltage surge interference from power distribution cabinets, EMC Level 3 lightning protection prevents adapter burnout during thunderstorm field patrols, DIN rail mounting allows permanent installation inside meter control boxes for continuous data recording.
4. Medical Equipment Multi-Serial Monitoring Host Expansion
Overseas medical device OEMs integrate E810-U41C into medical monitoring workstations to connect RS485 patient monitors, environmental sterilization controllers and lab test analyzers. Full galvanic isolation stops ground current leakage that disturbs precise medical signal collection, compact cabinet mounting size matches medical equipment control enclosures, stable low-noise serial transmission meets medical industry communication standards.
5. Mining & Tunnel Multi Safety Detector Central Monitoring
Mining safety engineering teams adopt E810-U41C for ground monitoring room hosts to link underground gas sensors, ventilation fan controllers and tunnel deformation detectors via four isolated RS485 lines. Anti-salt spray conformal coating resists underground damp mineral vapor corrosion, opto-isolation blocks strong electromagnetic noise from mine power transformers, auto RS485 transceiver circuit reduces manual switching operation workload for on-site technicians.
FAQ Section
1. What is the difference between E810-U41C and common single-port USB to RS485 adapters?
E810-U41C expands one USB-C port into four fully independent galvanically isolated RS485 channels without cross-talk, while single-port adapters only support one RS485 bus. It equips 1500V power + 3750V dual isolation, industrial EMC Level 3 surge protection and DIN rail housing, single-port dongles usually have no isolation or cabinet mounting structure for industrial cabinet deployment.
2. Does each of the four RS485 channels support separate Modbus RTU bus networks simultaneously?
Yes, all four RS485 ports are completely electrically isolated from each other, each channel runs independent serial communication threads on the host PC. Users can connect four separate Modbus slave device clusters on different buses at the same time without data collision or signal interference between different sensor groups.
3. What maximum baud rate can the CH344Q chip inside E810-U41C support?
The built-in CH344Q high-speed USB serial IC supports up to 6Mbps maximum baud rate for each RS485 channel, covering all common industrial serial rates from 1200bps low-speed meter reading to high-speed industrial equipment parameter synchronization transmission.
4. How does the dual isolation design protect host PC mainboards from field circuit damage?
1500V DC-DC power isolation and 3750V optoelectronic signal isolation form double-layer electrical separation between USB host side and field RS485 bus. It cuts ground loop current, blocks high voltage surges, ESD pulses and industrial motor electromagnetic noise, preventing laptop or industrial PC motherboard burnout caused by field wiring faults.
5. What installation methods does E810-U41C support for industrial cabinet deployment?
The converter integrates standard DIN 35 rail buckle structure for direct mounting inside electrical control cabinets, and reserved wall fixing screw holes for desktop or wall-mounted permanent installation, matching standard industrial cabinet layout specifications without extra adapter brackets.
