Honeywell 51305387-300 Cable Assembly

Configured for signal routing in data network architectures, the Honeywell 51305387-300 (51305387-300) Cable serves as the primary interconnect component utilized to execute data signal transmission across DCS and control network platforms.

Hardware Specifications

Honeywell DCS Process Control Characteristics

• 4-20 mA HART loop protocol: The cable construction ensures low capacitance and minimal signal attenuation for analog loops. This is mandatory for maintaining the HART diagnostic overlay integrity over the 66-inch connection span.
• FOUNDATION Fieldbus / Profibus PA connectivity: The physical cabling is engineered for the impedance requirements of high-speed fieldbus networks. This connectivity is mandatory to prevent signal reflections that could lead to packet loss or communication timeouts on the fieldbus segment.
• Channel-to-channel isolation: The internal shielding of the 51305387-300 provides the necessary EMI/RFI protection to prevent crosstalk between adjacent signal pairs. This is mandatory when routing multiple high-density data signals within restricted conduit or cabinet spaces.
• Cold junction compensation (CJC): The cable is designed to operate within the thermal specifications of the cabinet environment, ensuring that it does not introduce localized heating or signal drift that could affect the reference accuracy of attached thermocouple or RTD measurement modules.

Frequently Asked Questions

Q: Can the 51305387-300 cable be cut and spliced to fit specific field requirements?

A: Cutting and splicing are strongly discouraged. Any disruption of the cable's factory-terminated shielding and impedance-matched geometry will degrade its high-frequency signal performance and increase susceptibility to electromagnetic noise.

Q: Is this cable rated for use in intrinsically safe (IS) circuits?

A: Suitability for IS circuits depends on the specific Honeywell system installation manual. Always cross-reference the cable's physical characteristics with the control system's entity parameters before installation in hazardous locations.

Field Installation Guidelines

• Mounting: Support the cable along its 66-inch length using appropriate cable ties or trays to prevent mechanical strain on the terminations. Proper strain relief is mandatory to prevent terminal fatigue and intermittent data signal connection.
• Grounding: Terminate the cable shield to the cabinet’s designated instrument earth bus. A low-impedance connection is mandatory to provide an effective path for induced noise and to maintain the specified electromagnetic compatibility of the network link.
• Wiring: Maintain a minimum separation of 150 mm from high-voltage AC power cabling. This physical isolation is mandatory to prevent inductive coupling and high-frequency noise injection into the data signals, which is critical for protecting the DCS network communication integrity.