The JIO-D20M 20mJ Laser Target Designator and Rangefinder are precision optoelectronic products that emit laser light to specific targets and calculate distance information based on laser flight time. Communication is achieved through the RS422 communication interface, which has the characteristics of outstanding performance and simple operation. It has a wide range of application scenarios and the following advantages: small size, light weight, low power consumption, suitable for various platform environments such as handheld, airborne, and vehicle mounted. Using a 1064nm YAG laser, direct eye contact is prohibited.
●Equipped with laser ranging function;
●Provide target laser irradiation;
●Respond to laser ranging commands and can stop ranging at any time according to the stop command;
●During distance measurement, each pulse outputs distance data and status information once;
●Distance measurement has distance selection function;
●If no stop command is received after starting continuous ranging, the ranging will automatically stop after 5 minutes (1Hz)/1 minute (5Hz);
●Can set irradiation mode and coding;
●Respond to laser irradiation commands, follow the set mode, code, and irradiation, and can stop irradiation at any time according to the stop command;
●If no stop command is received after starting the irradiation, it will automatically stop after one cycle of irradiation;
●During laser irradiation, each pulse outputs a distance value and status information;
●Power on self check and periodic self check, and output status information;
●Respond to the self check command and output status information;
●Can report the cumulative number of laser pulses; Laser pulse counting function;
●Distance measurement function for initial and final targets;
| Item | Index |
| Model | JIO-D20M |
| Operating wavelength | 1064nm |
| Max Range | ≥4000m |
| Range hole | ≤100m |
| Ranging accuracy | ≤±2m |
| Ranging frequency | 1 Ranging、1Hz、5Hz、20Hz |
| Weight | ≤440g |
| Size | ≤91mm×68mm×51.5mm |
| Voltage | 18V～32V |
| Environmental adaptability |
Working temperature：-40℃～60℃ Storage temperature：-55℃～70℃ |
| Average energy | ≥20mJ |
| Energy Stability | ≤8%(Statistics after 2 seconds of light output) |
| Divergence angle | ≤0.5mrad |
| Pulse width | 15±5ns |
| Laser irradiation distance | ≥2000m |
| Encoding method | Accurate frequency coding and external synchronization |
| Encoding accuracy | ≤±2.5μs |
Laser designator and rangefinder end power supply and communication port pin definition
| Socket MOLEX 53048-0810 | ||
| Corresponding plug MOLEX 51021-0800 | ||
| Pin number | Signal name | Explain |
| 1 | 24V | Power supply + |
| 2 | 24V | Power supply+ |
| 3 | 24VGND | Power supply- |
| 4 | 24VGND | Power supply- |
| 5 | 422_A | Upper computer-> LIR component + |
| 6 | 422_B | Upper computer-> LIR component - |
| 7 | 422_Z | LIR component-> Upper compute- |
| 8 | 422_Y | LIR component-> Upper compute+ |
| Socket MOLEX 530480210 | ||
| Corresponding plug MOLEX 151340201 | ||
| Pin number | Signal name | Explain |
| 1 | SYNC_IN+ | The external synchronization signal is a differential signal, and the interface type is RS422 |
| 2 | SYNC_IN- | |
Communication protocol definition
Aynchronous serial communication standard: RS422;
Porter rate: 115,200 bps;
Transmission format: 8 data bits, 1 start bit, 1 bit stop bit, no check bit;
For each byte information, transmit the lowest bit (lsb) first, if the multibyte information, transmit the low byte first.
The command sent by the upper computer system to the laser illumination measurement module
Information header (0x55);
Command word 1;
Command word 2;
Command word 3;
Information tail is a checksum, a result of 1-4 bytes.
For more information on our products, please contact Jioptik.
