Related standards for Foundation Fieldbus cables
General cable specification Foundation Fieldbus FF-844 H1 and cable design based on EN 50288-7 or UL 13 / UL 2250.
- UL type products may be UL listed
- Electrical properties based on FF-844 H1 and IEC 61158-2, type A
- IEC 61158-2, type A
- is restricted to single pair cables,
- whereas FF-844 H1 specifies multipair, too
- FF-844 H1
- Electrical properties of each pair in multipair cables shall be according to IEC 61558-2, type A
FF-844 – cable design
Foundation Fieldbus Cables registered / 100 Ohm / FF-844 Fieldbus Foundation H1
With the Foundation Fieldbus, the "host device" only monitors the procedures. Within process automation, the FF forms a so-called LAN (Local Areas Network) and the FF devices are connected to H1 links. Several H1 links are connected to the high-performance network HSE High-Speed-Ethernet via linking devices.
- Tinned conductors
- Minimum dimension AWG 18
- Temperature rating of the cables min. -30 °C to +90 °C (-22 °F to 194 °F)
- Cable design according to
- EN 50288-7
- UL 13, type PLTC
- Cable sheath PVC or LSZH (low smoke, zero halogen) material
- Flame retardancy according to IEC 60332-3-24 or UL 1685
- Electrical requirements
- Characteristic impedance: 100 Ω ± 20 %
- Attenuation: < 3 dB/km
- Capacitive unbalance to shield: 4 nF/km
Designs and the following main options
- Conductor sizes
- 1.0 mm2, 1.3 mm2, 1.5 mm2, 2.5 mm2,
AWG 16, AWG 18
- 1.0 mm2, 1.3 mm2, 1.5 mm2, 2.5 mm2,
- Screen options
- ALU/PET tape (ST)
- And/or copper wire braid (ST + C), (ST + Ce)
- Armor options
- Steel wire armor SWA
- Steel wire braid armor (Q)
- Corrugated steel tape armor (SR)
- Halogen free cables
- UL rating
- PLTC/ITC
