The Leuze DDLS 508 200.3 L Optical Data Transmission Transceiver (Part Number: 50132929) is an advanced optical wireless communication device within the premier DDLS 500 generation by Leuze electronic (Germany). Designed to establish continuous, contactless network connections over long industrial travel distances, it serves as an invisible high-speed "virtual fiber-optic link," eliminating the mechanical fatigue, cable breaks, and high maintenance downtime typical of conventional reeling cables, conductor rails, and festoon cable drag chains.

The system utilizes an eye-safe infrared laser light source with a tight 1° beam opening angle, operating on optical transmission frequency F3. Engineered to work in a coordinated full-duplex transmission pair, the DDLS 508 200.3 L (frequency F3) matches seamlessly with its counterpart unit, the DDLS 508 200.4 L (Part No: 50132930 - frequency F4). This dual-frequency architecture ensures interference-free, bidirectional communication and allows multiple parallel optical transmission axes to operate adjacent to one another in the same industrial facility without optical cross-talk. The unit maintains continuous communication across distances from 100 mm up to 200,000 mm (0.1 m to 200 m) with a true real-time bandwidth of 100 Mbit/s.

Featuring a transparent Ethernet network architecture, the device seamlessly passes deterministic industrial protocols including PROFINET (RT, IRT, Conformance Class B), PROFIsafe over PROFINET, EtherNet/IP, CIP Safety, and standard TCP/IP/UDP without protocol overhead or scan-cycle delay. The "L" model designation includes an integrated laser alignment aid. This visible alignment laser allows a single technician to rapidly align and target the optical axes over hundreds of meters within minutes. The front panel incorporates an intuitive multi-segment LED bar graph displaying real-time received signal strength, providing early visual warnings of mechanical axis shift or front-optic contamination before network loss occurs.

Built for severe factory environments, the DDLS 508 200.3 L features a rugged die-cast metal housing with a net weight of 1,422 g, fully certified to IP65 environmental ingress protection. It reliably withstands operating temperatures from -5°C to +50°C and complies with international EN 60068 standards for vibration and shock resistance. With standard industrial M12 metal connectors (5-pin A-coded for power supply, 4-pin D-coded for network bus), it is the premier communication standard for automated high-bay warehouses (AS/RS), container harbor cranes, automotive body transport monorails, and heavy industrial metallurgy facilities.

• Manufacturer: Leuze (Leuze electronic GmbH + Co. KG)
• Country of Origin: Germany (100% Germany Origin)
• Product Series: Series DDLS 500 (Optical data transmission)
• Model Designation: DDLS 508 200.3 L
• Order Code (Part Number): 50132929
• Device Type: High-speed industrial optical data transceiver
• Working Distance Range: 100 mm ... 200,000 mm (0.1 m to 200 m)
• Light Source: Infrared laser diode
• Transmission Frequency: Frequency F3 (Paired with counterpart unit on frequency F4)
• Beam Opening Angle: 1°
• Integrated Specialized Features:
  - Integrated laser alignment aid (L-model designation) for fast single-person optical alignment
  - Optical filtering insensitive to reflective surfaces and ambient light
  - Capable of close parallel light-axis operation without cross-talk
• Data Transmission Throughput: 100 Mbit/s real-time communication
• Network Architecture: Transparent Ethernet transmission
• Supported Communication Protocols: PROFINET (RT, IRT, Conformance Class B), PROFIsafe over PROFINET, EtherNet/IP, CIP Safety, TCP/IP, UDP
• Digital Switching I/O: 1 digital switching input, 1 digital switching output
• Electrical Connections: Rugged industrial M12 metal connectors:
  - Connection 1 (POWER): M12 connector, Male, 5-pin, A-coded
  - Connection 2 (BUS): M12 connector, Female, 4-pin, D-coded
• Operating Supply Voltage (UB): 18 ... 30 V DC
• Diagnostics & Status Displays: Signal strength LED bar graph and multi-color status LEDs
• Housing Material: Heavy-duty metal chassis
• Physical Dimensions (W x H x L): 100 mm x 156 mm x 99.5 mm
• Net Weight: 1,422 g
• Environmental Protection Class: IP65 (EN 60529 certified dust-tight and water-jet resistant)
• Temperature Range: Operating: -5°C to +50°C; Storage: -35°C to +70°C
• EMC & Environmental Certifications: EN 61000-6-2, EN 61000-6-4, EN 60068-2-6 (vibration), EN 60068-2-27 (shock), c UL US listed
• Target Applications & Industries:
  - Automated Storage & Retrieval Systems (AS/RS): Wireless real-time communication between moving stacker crane carriages and central PLC cabinets across 200m aisles.
  - Port & Harbor Cranes: Continuous telemetry and control networking on STS container cranes, gantry hoists, and ship loaders without trailing cables.
  - Automotive Manufacturing: Uninterrupted process control and safety signal exchange on overhead electric monorail systems (EMS) and transfer shuttles.
  - Metallurgy & Steel Mills: Contactless networking for transfer ladle cars and heavy cranes in high-temperature, harsh industrial environments.