ERDI LDR40K3 40mJ Laser Target Designator Module – High-Precision Industrial Laser System
ERDI LDR40K3 40mJ Laser Target Designator Module – High-Precision Industrial Laser System
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The LDR40K3 is a 40 mJ 1064 nm laser rangefinder and target designator for vehicle turrets and compact EO/IR stations. It provides single and 1/5 Hz ranging out to 5 km with ±2 m accuracy and ≥ 98% hit probability, plus precise-frequency coded laser designation to 3.5 km, all in a 95 × 97 × 48 mm, ≤ 420 g module powered from 26 V DC with RS-422 digital control.
TECHNICAL SPECIFICATIONS
| Parameter | Specification |
|---|---|
| Wavelength | 1064 nm |
| Range (Ranging) | ≥ 5,000 m |
| Range (Designation) | ≥ 3.5 km |
| Weight | ≤ 420 g |
| Dimensions |
95 mm × 97 mm × 48 mm |
Control Functions
- Supports laser ranging with real-time reporting of measured distance values.
- Equipped with reverse polarity protection and over-voltage protection circuits.
- Performs laser designation at a built-in frequency of 20 Hz.
- Supports externally synchronized laser firing (external sync mode) via an external trigger signal, allowing precise encoding (specific characteristics TBD).
- Capable of reporting real-time operating temperature to the host system for monitoring and analysis (reserved function; communication protocol TBD).
- Power-on and startup self-test functionality.
- Overtemperature warning function:When the internal temperature exceeds safe operating limits and laser emission must be stopped, the device sends an overtemperature warning to the host system and automatically enters a protection mode to ensure laser safety (reserved function; protocol TBD; temperature read from pump module).
- Laser emission pulse count reporting.
- Energy adjustment interface (reserved):A software interface is reserved to allow fine-tuning of laser energy (standalone capability). When energy output decreases, it can be recalibrated via software to maintain ≥ 45 mJ.
- During ranging and laser designation operations, feedback data include pulse count identifiers.
-
Self-test and fault code output:
a) Power-on self-testincludes:
RS-422 serial communication status;
High-temperature warning;
b) Startup and periodic self-test include:
RS-422 serial communication status;
High-temperature warning;
Laser emission/no-emission status.
Note: Because the rangefinder/designator can only detect charging/discharging and laser emission faults during laser firing, the power-on self-test does not require these checks. Startup and periodic self-tests will report results from the last emission or ranging operation.
Weight Requirement
Overall dimensions: 95 mm × 97 mm × 48 mm
Electrical Interface Requirements
The device is equipped with one RS422 communication interface.
The connector model on the laser rangefinder/designator is J30JZLN15ZKWA000, and the corresponding plug is J303JZ/XN15TJCAL01.
The matching plug will be supplied with the product upon delivery.
The electrical interface definitions are shown in Table below.
Table : Electrical Interface Definition
|
Pin No. |
Label |
Description / Remarks |
|
P-1 |
VIN+ |
26 V ± 4 V power input |
|
P-2 |
VIN+ |
26 V ± 4 V power input |
|
P-3 |
T+ |
External sync signal (positive) |
|
P-4 |
VDD |
For programming use |
|
P-5 |
GND |
For programming use (ground) |
|
P-6 |
ARM_SWCLK |
Programming clock (SWD interface) |
|
P-7 |
ARM_SWDAT |
Programming data (SWD interface) |
|
P-8 |
T– |
External sync signal (negative) |
|
P-9 |
GND |
Power ground (26 V return) |
|
P-10 |
GND |
Power ground (26 V return) |
|
P-11 |
RS422_TX+ |
Laser Rangefinder/Designator Transmit (+) |
|
P-12 |
RS422_TX– |
Laser Rangefinder/Designator Transmit (–) |
|
P-13 |
RS422_RX– |
Laser Rangefinder/Designator Receive (–) |
|
P-14 |
RS422_RX+ |
Laser Rangefinder/Designator Receive (+) |
|
P-15 |
GND |
Signal ground |
Notes:
- The laser rangefinder/designator is equipped with reverse polarity protection for the power supply.
- The contractor (manufacturer) shall provide the corresponding plug.
