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Product Name:Edge Serial Device Server N916

16 Fully Isolated Serial Ports|2000-Point Edge Computing|30+ Protocol Coverage
USR-N916,Rack-mount Serial Device Server built on over 10 years of R&D expertise.Powered by industrial-grade triple-core RK3506J and self-developed WukongEdge engine, this rack-mount edge serial device server features 16-ch fully galvanically isolated RS485, millisecond polling up to 2000 points and compatibility with 30+ industrial protocols。Fully domestically developed, it delivers reliable one-stop device networking & edge computing solutions for substations, data centers, smart buildings and rail transit.al automation.

All-Isolated Serial / CAN Ports,16× RS-485 + 2× CAN FD
4 Ethernet Ports, Switchable / Cascadable, 1× WAN/LAN + 3× LAN
Dual Power Supply, AC/DC Optional, 110–250 VAC / 12–48 VDC
1U · Standard 1U Rack Mount, Aluminum Alloy Handles
2000-Point Auto Polling, Millisecond Response
30+ Industry Protocols, Full-Scenario Coverage, Flexible North–South Conversion

Supports TCP Client, TCP Server, UDP Client, UDP Server, HTTP and MQTT Transparent Modes

6-channel RS485 + 2-channel CANFD, independent operation; supports up to 32 concurrent sockets, and can connect to private servers.

Built-in Wukong Engine, integrated with network management, edge data acquisition, computation and upload; supports MQTT+TLS+JSON with customizable payload formats.

Built-in more than 30 industry protocols, ready for use after simple configuration. It covers scenarios such as power monitoring, smart buildings, water conservancy & hydrology, environmental monitoring and industrial PLC. Supporting mainstream protocols including IEC61850, IEC104, DL/T645, Modbus, BACnet, DNP3.0, SL651 and HJ212, it easily realizes protocol interworking and conversion of multiple devices to meet diverse industrial IoT data acquisition access requirements.

Serial, Ethernet and power fully isolated, with an industrial-grade RK3506J processor + Linux for stable, smooth operation.

The device adopts industrial hardware architecture with comprehensive electromagnetic protection. It features a wide operating temperature range of -25℃~75℃ and can run stably under harsh working conditions. It supports AC 110-250VAC input with power switch and DC 12-48VDC input with reverse-polarity protection. With excellent anti-interference and wide temperature resistance, it is suitable for various demanding industrial IoT scenarios such as factories and outdoor cabinets.

No host software required. Plug in the network cable, open a browser for instant configuration. Local firmware upgrade, reboot and factory reset are supported.

The device supports precise NTP time synchronization. Built-in RTC battery keeps time and auto-syncs with NTP server online. Independent LEDs on serial/CAN ports offer clear status for easy maintenance. VCOM virtual serial port is supported; legacy PC serial software can connect directly for remote control and data transmission, compatible with existing host software.

In power monitoring scenarios, this rack-mount serial device server solves problems of numerous devices, difficult maintenance and diverse protocols. With 4 Ethernet ports, it supports cloud scheduling, local configuration, SCADA monitoring and station device access. Built-in power protocols IEC61850, IEC104, DL/T645 and DNP3.0, it connects power meters, integrated protection relays and other equipment to realize remote and unattended management of power distribution rooms.

Widely applied in data centers, power & energy, rail transit, smart building BA, smart factories, environmental & water conservancy sectors for multi-device data collection, protocol conversion and remote transmission.





Item Category | Specifications | |
Power Specifications | Power Interface | 1 AC power input, 1 DC power input, select one |
DC Power Range | DC 12~48V, 2-pin industrial terminal block, built-in reverse polarity protection | |
AC Power Range | Input 110~250V 50/60Hz, standard three-prong plug power cord | |
Power Switch | Controls device power on/off. Switch should be in OFF state during wiring | |
Core Hardware | Main CPU | Industrial RK3506J, Triple-core Cortex-A7@1.2GHz + Cortex-A0 |
System | Linux operating system, equipped with WukongEdge edge engine | |
Storage | 512MB DDR3 + 8GB eMMC, supports up to 32GB Micro SD card expansion | |
Ethernet Interface | Number of Ports | 4 RJ45 Ethernet ports 1× WAN/LAN switchable + 3× LAN, supports switch function |
Port Specifications |
10/100Mbps adaptive, compliant with IEEE 802.3 standard
Built-in 1.5KV network isolation transformer protection | |
Serial Port Specifications | Number of Interfaces | 16-channel RS485 industrial spring-push terminals |
Isolation Design | Fully isolated design, every 4 RS485 channels independently isolated | |
Baud Rate | 1200~230400bps, customizable | |
Data Bits | 7, 8 | |
Stop Bits | 1, 2 | |
Parity Bit | NONE, ODD, EVEN | |
Termination Resistor | Built-in 120Ω, software controllable | |
CAN Port Specifications | CAN Interface | 2-channel CANFD (compatible with CAN2.0), shared isolation Industrial spring-push terminals, with electrical isolation |
Physical Characteristics | Housing | Sheet metal housing, IP30 dust protection rating |
Dimensions | 483*293.7*44.5mm (including terminals/ears) | |
Mounting Method | Rack mount installation | |
EMC Rating | Electrostatic discharge IEC Level 3, surge IEC Level 3, electrical fast transient/burst IEC Level 3 | |
Operating Temperature | -25℃ ~ 75℃ | |
Storage Temperature | -40℃ ~ 85℃ | |
Operating Humidity | 5%~95% RH (non-condensing) | |
Others | Reset Button | Reload button, long press 5~15s to restore factory settings |
Indicator Lights | Equipped with power PWR, running status RUN, network status NET, connection status LINK, CAN port status CANn, serial port status COMn indicator lights | |
RTC Clock | Supports RTC clock, equipped with battery | |
SD Card Slot | Supports Micro SD card for storage expansion | |
USB Interface | Type-A interface, used for low-level program package upgrade and log download Micro USB interface, used for internal production testing | |
Grounding Protection | Grounding screw | |
Built-in Watchdog | Supports device self-check and automatic recovery from faults | |
Software Functions | Network Management | ① WAN/LAN switchable, built-in DHCP
②Reporting channels: Someone Cloud/MQTT/TCP/UDP/HTTP, supports TLS encryption
③ Reporting rules: triggered by period/change/timer multiple conditions
④ Custom JSON reporting template, flexibly adapts to third-party platforms
⑤ Local cache when offline, automatic resume transmission when network restores, supports TF card storage expansion |
Edge Computing |
① Multi-channel RS485 independent configuration, full baud rate adaptive
② Supports batch import/export of slave devices/points ③ Single/multi-point data formula calculation, supports four arithmetic operations ④ Supports millisecond-level polling of 2000+ points | |
Protocol Collection/Conversion |
① Southbound collection: Modbus RTU/TCP, Mitsubishi FX / FATEK / Siemens / Omron / Delta full brand PLC protocols
② Industry protocols: IEC104/IEC61850/DNP3.0/DL645 (Power), HJ212 (Environmental Protection), SL651 (Water Conservancy), BACnet (Building)
③ Northbound output: Modbus TCP, OPC UA, custom JSON format
④ Multi-protocol parallel operation, independent threads do not interfere with each other | |
Device Operation and Maintenance Security |
① Full Chinese Web visual configuration, supports batch import/export of configurations
② Parameter configuration, firmware batch OTA upgrade, status monitoring, remote log troubleshooting ③ Supports remote web penetration access, no public IP required | |
Monday to Friday 8:30-18:00 in Beijing time. Message us online for a quick response when we are on-work. Or you can leave a message. Our sales will contact you as soon as possible. You can get free technical support & professional support for your project on our technical support h.usriot.com. Get in touch with us via email at sales@usriot.com. We want to help with any questions you have.
We will deliver goods as soon as possible after we received the order. The order generated on weekend and holidays will be handled after back. We ship the goods with the following carriers TNT, DHL, FedEx, UPS, shipping agent.
We provide one year's warranty of modules and two year's warranty of cellular routers, cellular modems, serial device servers for any reason. If you believe the item is defective and under warranty, please submit a Return or Exchange request on the product's support page, or contact us at support@usriot.com.
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