DTS OEM · Gen 4 · Generation 4 DTS core module
Generation 4 DTS core module for equipment integration and OEM/ODM.
4th-Generation DTS OEM Module
4th-Generation DTS OEM Module

Product features
Continuous temperature sensing with multimode fiber. Sampling intervals of 0.1 / 0.2 / 0.4 m correspond to 3 / 6 / 12 km ranges, with approximately 30,000 samples per channel. See the configuration table for location accuracy and spatial resolution.
Up to 32 channels and approximately 960,000 samples.
The passive sensing fiber requires no field power or network. Select jacket, temperature rating and protection for the environment. The core module accepts DC 10–36 V with minimum-system average power ≤6 W; complete-system and accessory power are separate.
Class 1 laser safety. RJ45, RS485, Modbus RTU, Modbus TCP, JSON and custom interfaces support third-party integration. Alarm modes include fixed temperature, differential temperature, rate of rise, average temperature and faults.
Measurement configuration and hardware
| Item | Specification |
|---|---|
| Fiber Type | 62.5 um/125 um multimode fiber (50 μm/125 μm optional) |
| Measurement Channels | 1-32 channels optional |
| Single-Channel Measurement Distance | 3 km / 6 km / 12 km options |
| Standard Alarm Length | Subject to temperature contrast, threshold and installation |
| Spatial resolution | ±0.1 m / ±0.2 m / ±0.4 m optional (10%–90%) |
| Positioning Accuracy | ±0.1 m / ±0.2 m / ±0.4 m (optional) |
| Sampling Interval | 0.1 m / 0.2 m / 0.4 m (optional) |
| Alarm Response Time | ≤ 3 s |
| Measurement Time | ≤ 1 s/km |
| Temperature Measurement Range | -200°C to 455°C (depending on optical cable) |
| Temperature Accuracy① | ±0.1°C (depending on fiber position, measurement time, etc.) |
| Temperature Resolution | 0.01°C |
| Communication Interfaces | 1 x RJ45 (Ethernet), 2 x RS485, 2 x USB, 8 x relays (optionally expandable to a built-in maximum of 32 relays) |
| Protocol Support | Modbus RTU, Modbus TCP, JSON, and custom protocols |
| Optical Connector | E2000 or FC/APC connector (E2000 as standard) |
| Backup Battery | Optional |
| Power Supply | Default DC24V (supports wide-voltage input from 10 VDC to 36 VDC; fuse load capability should be considered under different supply voltages). Average module power consumption ≤ 6 W. Accessories such as relay modules, 4G/5G modules, battery charging/discharging, or other peripheral devices powered from the equipment may affect total power consumption. |
| Laser Safety Class | Class 1 |
| Operating Temperature | -20°C to 60°C |
| Storage Temperature | -20°C to 70°C |
| Dimensions (W x D x H) | 170 × 210 × 43 mm (core module, per dimension drawing; mounting flanges shown separately) |
| Weight | 2 kg |
An alarm response ≤3 s applies to qualifying fiber-length, polling and trigger settings. Calculate the full update cycle for long fibers or multichannel polling separately from acquisition and alarm times.
Software and system integration
Graphical Interface
Optional 7-inch 1024 × 600 touchscreen.
7-inch screen (display resolution 1024 x 600), with multi-touch support.
Supports automatic fiber temperature calibration, curve display and polling, automatic detection of fiber installation quality and fiber length, zone management and alarm display, zone historical data query, external RS485 and RJ45 configuration, and relay linkage configuration and management.
Software Functions
Built-in web server based distributed fiber optic temperature monitoring software. The device can be accessed through a web browser and supports mainstream operating systems including Windows, Linux, iOS, Android, macOS, and HarmonyOS. Provides powerful device management and configuration functions, rich data and protocol integration capability, and 2D/3D dynamic visualization for scenes or maps.
Intelligent Functions
1. Supports automatic calibration of Raman optical calibration parameters, with built-in calibration sensor and one-click automatic parameter adjustment;
2. Supports automatic zoning in the background according to the configured segment length and zone naming rules;
3. Supports automatic Chinese/English language switching (and secondary development for other languages);
4. Supports one-click upgrade with fully automated upgrading;
5. Supports free switching between spatial sampling interval and spatial resolution to satisfy either long-distance monitoring or high-resolution hotspot monitoring;
6. Automatically detects fiber length and fiber connection quality;
7. Supports RJ45 wired Ethernet; 4G/5G requires an optional module;
8. Supports intelligent networking and NAT traversal, enabling global web access through a cloud server after secure configuration even without a fixed public IP.
Computing, optical, power, relay, communication and 2–32-channel optical-switch modules support OEM integration. Enclosure, UI, markings and protocols can be configured; use the confirmed integration drawings for dimensions.
Product views and installation



Core-module dimensions differ from the assembled baseboard/expansion configuration. Use the applicable drawing for mounting holes, connector clearance and assembly envelope.
Spatial resolution uses the 10%–90% step-response criterion and the ± spatial-extent notation used in this datasheet. Location accuracy is specified separately. Compare specifications using the same definitions and test conditions.
Applications and further reading
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