Configured for high-speed fiber-optic signal distribution across ControlLogix networks, the Allen-Bradley 1751-SL4SP (1751SL4SP SynchLink Block) converts electrical signals from the base block into 4 fiber-optic ports.

Nomenclature Breakdown & Catalog Matrix

• 1751: Base product family identifier designating Allen-Bradley SynchLink hardware platforms.
• SL4SP: Configuration designator indicating a 4-port fiber-optic splitter block architecture.

Hardware Specifications

Industrial Control & Drive Interface Integration

Engineered for deterministic network execution, the splitter manages high-speed backplane bus communication velocities and supports EtherNet/IP deterministic network links. It maintains strict signal integrity parameters, ensuring zero firmware flash conflicts and precise synchronization across multi-node automation arrays.

Package Ordering Information

• 1 x 1751-SL4SP SynchLink 4 Port Splitter Block unit
• 1 x Copper wire terminal protection cover

Physical Wiring & Mounting Instructions

• Enclosure Placement: Mount the splitter unit inside a protective industrial cabinet to shield fiber-optic connections from physical stress and ambient contamination.
• Fiber Routing: Route plastic optical fiber (POF) lines maintaining a safe bend radius to prevent signal attenuation and optical output power loss.
• Grounding Execution: Ensure proper chassis grounding to comply with electrostatic discharge (ESD) immunity thresholds of 8 kV air and 4 kV contact discharges.

Frequently Asked Questions

• Q: What is the primary function of the 1751-SL4SP splitter block?

  A: The unit converts electrical signals received from a SynchLink base block into four separate fiber-optic output ports.

• Q: What power supply voltage and current are required for operation?

  A: The device operates on a 5.1 V DC Class 2 supply voltage with a current draw of 300 mA.

• Q: What optical output power is delivered for different fiber types?

  A: It delivers +1.3 dBM for 1 mm POF cable and -7.2 dBM for 200 um Hard Clad Silica (HSC) fiber.

• Q: What is the wavelength specification of the optical light source?

  A: The integrated visible optical light source operates at a nominal wavelength of 650 nm.

• Q: What are the physical dimensions and weight of the hardware?

  A: The unboxed unit weighs 0.26 kg with estimated shipping dimensions of 3.5 x 14.5 x 14.5 cm.

• Q: Which country is listed as the place of manufacture?

  A: The hardware module is manufactured in the USA.

• Q: What level of electrostatic discharge (ESD) protection is supported?

  A: The module provides ESD immunity up to 8 kV for air discharges and 4 kV for contact discharges.

• Q: Can fiber-optic cables be swapped while the unit is energized?

  A: Fiber-optic connections must be handled carefully to prevent optical surface contamination or signal degradation during live operation.