Caledonian RS 485 SWB Cables Specification
RS485 Steel Wire Braid LSZH Jacket Cable
APPLICATIONS
With low capacitance and high propagation speed properties, and its high immunity against external interference, this cable is suitable for extended distance transmission and applications where low signal distortion is required.
STANDARDS
EIA/TIA 485
CABLE CONSTRUCTION
Conductor: 2 pairs 22 AWG (7/0.254mm) Stranded Tinned Copper wire.
Insulation: Conductors are insulated with a layer of extruded normal PE
Collective screen: 100% Al/polyester foil screen with 24 AWG (7/0.20mm) stranded TC wires.
First Braid: Tinned copper wire braid, 90% coverage.
Inner Sheathing: An inner layer of extruded PVC compound is applied over the cable core.
Second Braid: 0.2mm Galvanized steel wire braid
Outer Sheathing: An outer protection of extruded LSZH is applied over the armor. Nom OD: 15.0±2.0mm.
ElECTRICAL PROPERTIES
Nominal Impedance：120 Ω.
Nominal Capacitance Cond. to Cond. @1KHz: 36.1 pF/m
Nominal Conductor DC Resistance @20℃: 48.4 Ohm/km
Nominal Insulation Resistance @ 20 ℃: 5000MOhm·km
PHYSICAL AND THERMAL PROPERTIES
Min Bending Radius: 360mm
Operating Temperature: -35℃/+90℃