Description
Hübner LWLS-T-1-62,5/125 | HTL Fiber-Optic Transmitter
Product Introduction
Long encoder cable runs in electrically noisy industrial environments can create signal-transmission challenges. The Johannes Hübner LWLS-T-1-62,5/125 addresses this by converting electrical incremental encoder signals into optical signals for transmission over fiber. It is part of the LWLS-T transmitter family and is specifically configured for HTL inputs and 62.5/125 µm fiber.
The Hübner catalog identifies this exact variant as order ID 18462, with connection diagram PN 114-401-H and a 12–30 VDC supply. It supports the incremental encoder channels 0°, 90°, marker, and check, including their inverted signals. This is a signal-interface component—not an encoder itself—and must be matched to the receiving optical interface and installed encoder configuration.
For replacement procurement, preserve the complete model number and verify the HTL interface, fiber specification, and corresponding receiver/decoder before approving a substitute.
LWLS-T-1-62 5125
Key Technical Specifications
- Model: LWLS-T-1-62,5/125
- Manufacturer: Johannes Hübner / Baumer Hübner
- Series: LWLS-T
- Order ID: 18462
- Device Type: Fiber-optic encoder transmitter
- Signal Conversion: Electrical incremental encoder signals to optical fiber signals
- Input Signal Type: HTL
- Fiber Type: 62.5/125 µm
- Supply Voltage: 12–30 VDC
- Connection Diagram: PN 114-401-H
- Encoder Channels: 0°, 90°, marker, and check
- Signal Arrangement: Channels with corresponding inverted signals
- Intended System: Incremental encoder fiber-optic transmission path
- Mounting/Housing: LWLS-T transmitter housing; verify the supplied unit’s physical configuration
- Mating Receiver: Compatible Hübner LWLS-D decoder or designated optical receiver; verify exact pairing
- Fiber Cable and Connectors: Not assumed included
The model-specific catalog confirms the HTL input, 62.5/125 µm fiber type, 12–30 VDC supply, and order ID 18462. Confirm connector details and system pairing against the complete OEM documentation before installation.
Global Sourcing & Live-Test SOP
For used or surplus LWLS-T-1-62,5/125 inventory, verify the exact interface and optical path before declaring the transmitter operational.
5.1 Inbound Verification
- Photograph the complete nameplate and all printed markings.
- Confirm LWLS-T-1-62,5/125 and order ID 18462, where shown.
- Inspect the housing for cracks, impact damage, corrosion, or signs of repair.
- Check electrical terminals and optical connection points for damage or contamination.
- Record serial number and available manufacturing or revision information.
- Confirm whether fiber cables, mating connectors, or related decoder modules are included.
5.2 Electrical Inspection
- Verify the supply requirement of 12–30 VDC.
- Confirm the HTL input configuration against the encoder output.
- Check the wiring against connection diagram PN 114-401-H.
- Inspect input terminals for damage or loose connections.
- Do not energize unidentified terminals based on assumed pin assignments.
5.3 Functional and Optical Test
- Use a controlled 12–30 VDC supply.
- Connect a compatible HTL incremental encoder signal source.
- Verify the 0° and 90° channels, marker, and check signals.
- Confirm optical transmission using a compatible receiver or decoder.
- Check signal integrity across the intended fiber type and connection arrangement.
- Record any missing channels, intermittent transmission, or receiver faults.
5.4 Extended Run and Final Preparation
- Run repeated encoder pulses through the transmitter and receiver path.
- Monitor supply stability and signal transmission.
- Record test voltage, encoder signal type, receiver/decoder model, fiber type, and observed results.
- Protect the optical interface from dust and impact during packing.
- Use suitable protective packaging for the electronic module.
- Clearly distinguish tested, untested, refurbished, and as-is inventory.
Field Engineer’s Pitfall Guide
❗ HTL input is not interchangeable with TTL by assumption
The LWLS-T family includes different input variants. The -1 version is cataloged for HTL input, while the -2 version is designated for TTL input. Confirm the encoder output type before substitution.
❗ Fiber-core specification matters
The 62,5/125 designation identifies the fiber type. Do not assume that a 50/125 µm variant is an approved substitute without checking the optical path and receiver requirements.
❗ The transmitter is only one part of the encoder signal path
The LWLS-T converts electrical signals to optical transmission; it does not replace the encoder or receiving decoder. Verify the compatible receiver, fiber connection, channel arrangement, and wiring before commissioning.
Intent-Driven FAQ
What is the Hübner LWLS-T-1-62,5/125?
It is a fiber-optic transmitter that converts HTL electrical incremental encoder signals into optical signals for fiber transmission.
What is the order ID?
The Hübner catalog identifies as order ID 18462.
What supply voltage does it require?
The documented supply range is 12–30 VDC. Verify the wiring diagram and unit marking before energizing.
Does it accept HTL or TTL signals?
This exact -1 variant is specified for HTL input. The LWLS-T-2 variants are designated for TTL input.
What does 62,5/125 mean?
It identifies the fiber type as 62.5/125 µm. Match this designation to the installed fiber and receiving equipment.
Can it replace an LWLS-T-2-62,5/125?
Not as a direct substitute without confirming the input interface. The T-1 variant is HTL, while the T-2 variant is TTL. The electrical encoder signal must match the transmitter input.
What should buyers verify before ordering?
Confirm the complete model, order ID, HTL input, 62.5/125 µm fiber type, supply range, connector condition, and whether the required decoder and fiber accessories are available.
Bottom Line for Buyers
The Johannes Hübner ,5/125 (Order ID 18462) is an HTL-input fiber-optic transmitter for incremental encoder signals. Its defining procurement details are the 12–30 VDC supply, 62.5/125 µm fiber type, and PN 114-401-H connection diagram.
For replacement sourcing, match the exact model and verify the encoder’s HTL output, fiber type, and receiving decoder. Do not substitute a TTL-input or different fiber variant based on appearance alone.
