Fieldbus Cable
Product Overview
Section titled “Product Overview”This fieldbus cable is designed for 31.25kHz automation systems with 100Ω characteristic impedance. It supports digital, bidirectional and multipoint communication between monitoring loops, intelligent measurement devices and control equipment in open, distributed FOUNDATION Fieldbus networks.
Applications
Section titled “Applications”- FOUNDATION Fieldbus automation control systems.
- Industrial process monitoring, intelligent measurement and control equipment.
- Cable trays, brackets and tunnels in indoor, wet outdoor or dry environments.
Product Features
Section titled “Product Features”- Rated voltage: 300/500V; long-term conductor temperature: 70℃.
- Maximum bending radius: 12D for metal-tape-shielded or metal-wire-armoured cables and 8D for metal-wire braided cables.
- Minimum laying temperature: not lower than 0℃.
- Types A, B, C and D support maximum cable lengths of 1900m, 1200m, 400m and 200m respectively.
Key Parameters
Section titled “Key Parameters”Using an 18AWG, 0.8mm² finished cable as an example:
| Item | Specification |
|---|---|
| Conductor resistance at 20℃ | ≤24.0Ω/km |
| Shield characteristic impedance | 9Ω/km for single pair; 18Ω/km for multi-pair |
| Operating capacitance at 1kHz | Core-to-core ≤60pF/m; core-to-shield ≤115pF/m |
| Capacitance unbalance to earth | ≤2000pF/km |
| Characteristic impedance at 31.25kHz | 100±20Ω |
| Attenuation at 39kHz | ≤3.0dB/km |
| Transmission speed | 31.25kbit/s |
| AC withstand test | 1kV/1min |
| Insulation resistance | At least 3000MΩ·km at 20℃ |
Construction Codes
Section titled “Construction Codes”FF-A indicates FOUNDATION Fieldbus Type A; Y/FPE indicate PE or foamed PE insulation; P, P1, P3, P4 and P5/P3P1 indicate shielding combinations; 2, 3 and 9 indicate armour constructions.
Standards
Section titled “Standards”IEC 61158-2-2010, T/CES 100-2022 and T/HGJ 12400-2021.
Product Downloads
Section titled “Product Downloads”View this product PDF catalogue online, or return to the Wire & Cable downloads page for related documents.
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