Description
Foxboro SY-61025004R
Technical Specifications
- Product Type: Redundant Network/Data Cable Assembly.
- Data Rate: Supports high-speed fieldbus or Ethernet protocols.
- Configuration: Dual independent channels in a single jacket or paired assembly.
- Impedance: Precisely controlled impedance (e.g., 100Ω or 150Ω) for signal integrity.
Functional Features
- High Availability: Provides physical layer redundancy for mission-critical control networks.
- Signal Fidelity: Twisted-pair geometry cancels out external magnetic interference.
- Durability: Ruggedized construction for long-term reliability in industrial environments.
- Easy Identification: Color-coded jackets or markers to distinguish primary and secondary paths.
Application Scenarios
Deployed in safety-critical systems, large-scale distributed control networks, and anywhere a single point of failure in communication is unacceptable.
Performance Parameters
- Attenuation: Low signal loss over the specified cable length.
- Crosstalk: High near-end and far-end crosstalk isolation between pairs.
- Propagation Delay: Matched delay between redundant pairs for seamless failover.
Material Composition
Solid or stranded copper conductors with foam-skin insulation for optimal electrical characteristics. Shielded with aluminum-polyester tape and a tinned copper braid. Outer jacket is LSZH (Low Smoke Zero Halogen) for safety in enclosed spaces.
Structural Characteristics
A dual-channel cable assembly with precision-terminated connectors. The internal pairs are twisted at specific pitches to optimize noise rejection. Connectors feature robust locking mechanisms to prevent vibration-induced disconnection.
Working Principle
The cable carries differential signaling, where data is transmitted as the voltage difference between two wires. This makes the signal highly immune to common-mode noise. In a redundant setup, the system controller monitors both paths and instantly switches to the backup if the primary degrades.
Installation Requirements
Maintain strict separation from high-voltage power cables (minimum 300mm). Do not bend the cable beyond its minimum radius. Ensure proper termination and grounding of the shield at both ends (or single-ended for certain protocols) to prevent ground loops.
Usage Precautions
- Test the cable with a certified network tester before putting it into service.
- Avoid running the cable near fluorescent lights or motor starters.
- Label both ends clearly as “Primary” and “Secondary” to prevent maintenance errors.
