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Predision HESS-T-021 10/100M to 8-port RS-232/485/422 Serial Device Server
Manufacturer Part Number: HESS-T-021
Brand: Predision
$ 482.00
- 8 × RS-232/485/422 Port + 1 × 10/100M Port
- Operating Temperature: -40°C to 85°C
- ±4 kV ESD Protection for Serial Port, 1.5 kVAC Isolation Protection for Ethernet Port
- Supports Web Firmware Upgrade
- Baud Rate: 300 - 921,600 bps
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Backordered
More stock available: May 29, 2026 (UTC-4)
The HESS-T-021 serial device server facilitates seamless conversion between RS-232/485/422 serial ports and TCP/IP network interfaces, supporting transparent, bi-directional data transmission. This allows legacy serial devices to gain immediate network connectivity.
Hardware
| Processor | 32-bit 400 MHZ |
| Storage | 128M |
| Ethernet Interface | 10/100M (built-in 1.5 kV Electromagnetic Isolation) Auto MDI/MDI-X Ethernet Interface, RJ45 Connector |
| Serial Standard | RS-232, RS-485, RS-422 |
| Serial Port | 8 × RJ45 |
| LED Indicators | PWR, RUN |
| Power Connector | 1 × DC Connector 1 × 3-pin 5.08 Terminal Block, with built-in Reverse Polarity Protection |
| Input Voltage | 12 - 48 VDC |
| Function Buttons | 1 Factory Reset Button RESET |
| Max. Power Input | 5.4 W |
| Housing | Metal Housing, IP30-rated Protection |
| Operating Environment | Storage Temperature: -40°C to 85°C Operating Temperature: -40°C to 85°C Relative Humidity: 5 - 95% (Non-condensing) |
| Dimensions (L×W×H) | 161 × 91 × 37 mm (Without mounting parts） |
| Net Weight | 485g |
Software
| OS Support | Based on Linux |
| Supported Protocol | ARP, IP, ICMP, UDP, TCP, HTTP, DHCP, SNMP, MQTT, Modbus |
| Configuration Method | Web Browser, VCOM Utility (Virtual COM Only Windows) |
| Operating Mode | VCOM, MCP, TCP Server, TCP Client, UDP, Remote Pair Mode, Modbus TCP Server, Modbus TCP Client, MQTT, RFC2217 |
| Baud Rate | 300 - 921,600 bps |
| Data Bit | 7, 8 |
| Stop Bit | 1, 2 |
| Parity | None, Odd, Even, Mark, Space |
| Flow Control | RTS/CTS, DTR/DSR, XON/XOFF (Only RS-232) |
Industrial Standard
| EMC | EN 55032/24 |
| EMI | CISPR 32, FCC Part 15B Class A |
| EMS | EN61000-4-2 (ESD) Contact 6 kV, Air 8 kV EN61000-4-3 (RS) 3 V/m EN61000-4-4 (EFT) Power 2 kV, Signal 1 kV EN61000-4-5 (Surge) Power 2 kV, Signal 1 kV EN61000-4-6 (CS) 3 V/m |
8-channel RS-232/485/422 + 1-channel 10/100M Port, Desktop/Wall-mount, Input Voltage: 12 - 48 VDC, IP30-rated Metal Housing, Baud Rate: 300 - 921,600 bps, ±4 kV ESD Protection for Serial Port, 1.5 kVAC Isolation Protection for Ethernet Port, Operating Temperature: -40°C to 85°C.
8-channel RS-485/422 + 1-channel 10/100M Port, Desktop/Wall-mount, Input Voltage: 12 - 48 VDC, IP30-rated Metal Housing, Baud Rate: 300 - 921,600 bps, ±6 kV ESD Protection for Serial Port, 1.5 kVAC Isolation Protection for Ethernet Port, Operating Temperature: -40°C to 85°C.
8-channel Isolated RS-485/422 + 1-channel 10/100M Port, Desktop/Wall-mount, Input Voltage: 12-36 VDC Isolated Power Supply, IP30-rated Metal Housing, Baud Rate: 300 - 921,600 bps, ±6 kV ESD Protection for Serial Port, 1.5 kVAC Isolation Protection for Ethernet Port, Operating Temperature: -40°C to 85°C.
5-Year Warranty
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Norwalk, CT 06850
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