D-Link DOM-311-TSO 4G LTE Industrial IoT RTU
PRODUCT DESCRIPTION
D-Link DOM-311-TSO 4G LTE Industrial IoT RTU (DOM-311-TSO) - 3 Years Local Warranty
Compact 4G Remote Terminal Unit
The D-Link DOM-311-TSO links field equipment to the cloud over 4G LTE Cat.4 (up to 150 Mbps down / 50 Mbps up), with a Fast Ethernet LAN port and a single Nano-SIM slot.
IT/OT Integration
A serial port (RS-232 or RS-485), 3 digital inputs and 2 digital outputs, Modbus TCP/RTU/ASCII master/slave, virtual COM (TCP client/server, UDP) and a RESTful API connect PLCs, meters and sensors.
Industrial-Grade Design
Corrosion-resistant zinc-plated steel housing, -30 to 70 °C operation, DC 9-36 V terminal-block input and DIN-rail mounting in a 78 x 70 x 29 mm body.
Secure and Centrally Managed
OpenVPN client, IPS firewall, packet and MAC control, SMS event management and D-Link D-ECS2 management.
Need help choosing? Email sales@sourceit.com.sg with your sensors, PLCs and site details and we will recommend the right IIoT device.
D-Link DOM-311-TSO Datasheet — Technical Specifications
General
| Product Name | D-Link DOM-311-TSO 4G IIoT RTU |
| Part Number | DOM-311-TSO |
| Series | D-Link 5G/4G LTE Industrial IoT (IIoT) |
| Local Warranty (Singapore) | 3 years, supplied by SourceIT with a GST invoice |
Cellular
| Cellular Module | 4G LTE Cat.4 |
| LTE Throughput | 150 Mbps (DL) / 50 Mbps (UL) |
| LTE Bands (EU SKU, HW A1) | FDD B1/B3/B7/B8/B20/B28A; TDD B38/B40/B41 |
| LTE Bands (US SKU, HW A2) | B2/B4/B5/B12/B13/B14/B66 |
| SIM Slot | 1 x SIM (Nano SIM) |
Interfaces & I/O
| Ethernet | 1 x LAN FE |
| Serial Port | 1 x RS-232 or RS-485 (terminal block) |
| Digital I/O | 3 x DI; 2 x DO (open collector, max. 30V) |
| Antenna Connectors | 2 x SMA(F) cellular |
| Power Input | DC 9-36V (terminal block) |
Industrial Protocols
| Modbus | Modbus TCP/RTU/ASCII master/slave access |
| Virtual COM | TCP client, TCP server, UDP |
| API | RESTful API |
Network, Security & Administration
| VPN | OpenVPN (client mode) |
| Firewall & Access Control | IPS, Block WAN Ping; packet filter, MAC control |
| Routing | Static |
| DDNS | DynDNS, No-IP, Dynamic DO |
| SMS Service | SMS event management |
| Configuration | Web UI, CLI, command script |
| Management | D-Link D-ECS2 |
| System | FW upgrade, reboot & reset, system time, NTP service |
Physical & Environmental
| Dimensions | 78 x 70 x 29 mm |
| Housing & Mounting | Zinc-plated steel; DIN-rail |
| Operating Temperature | -30 to 70 °C |
| Storage Temperature | -40 to 85 °C |
| Humidity | Operating 10% to 95% (non-condensing) |
| Certifications | CE, UKCA |
Compatibility & Software Support
Management
Web UI, CLI and command script locally; D-Link D-ECS2 for central management; SMS event management.
Typical Use
Telemetry and remote monitoring: environmental monitoring, livestock and fish farming, wastewater treatment and greenhouses.
Package Contents & IIoT Ordering Information
Package Contents
2 x cellular SMA antennas, 1 x RJ-45 cable, 1 x power adapter, 1 x terminal block (10-pin), 1 x DIN-rail kit.
D-Link IIoT Models
| Model | Type | Ethernet / SIM | Serial / I/O | Part No. |
| DOM-311-TSO (this listing) | 4G IIoT RTU | 1 x LAN FE / 1 Nano SIM | 1 x RS-232/485, 3 DI, 2 DO | DOM-311-TSO |
| DOM-530-TSO | 4G IIoT Gateway | 1 x WAN/LAN GE + 1 x LAN GE / 2 Micro SIM | 2 x RS-232/485, 1 DI, 1 DO, USB, Micro SD, GPS | DOM-530-TSO |
Datasheet & Downloads
| D-Link datasheet | DOM-311-TSO Datasheet (PDF) |
| D-Link product page | DOM-311-TSO on dlink.com |
Need a PDF sent directly? Email sales@sourceit.com.sg quoting DOM-311-TSO.
Frequently Asked Questions — D-Link DOM-311-TSO
Which industrial protocols does it support?
Modbus TCP/RTU/ASCII master/slave, virtual COM (TCP client/server, UDP) and a RESTful API.
What I/O does it have?
One RS-232 or RS-485 serial port, 3 digital inputs and 2 open-collector digital outputs (max. 30V).
Does it support two SIMs?
No, it has one Nano-SIM slot. For dual-SIM failover see the DOM-530-TSO.
What power input does it need?
DC 9-36V via terminal block; a power adapter is included.
What warranty do I get?
3 years local warranty in Singapore, supplied by SourceIT with a GST invoice.