Product Hierarchy
Product Hierarchy

9842ELZ - RS-485, 2 Pr #24 Str TC, PE Ins, OS+TC Brd, LSZH Jkt, Eca


RS-485, 2 Pair, 24 AWG stranded (7x32) Tinned Copper conductors, Polyethylene insulation, twisted pairs, overall Beldfoil® (100% coverage) + Tinned Copper braid shield (90% coverage), 24 AWG stranded Tinned Copper drain wire, LSZH jacket, CPR Eca

Life Cycle Status: Capability

Product Overview

Suitable Applications: RS-485, POS; Computer communications; Low Voltage Analog Signals (4-20ma, 0-10v, ...); Low Voltage Digital Control (24v, …); Line Level Audio; Panel Wiring; serial communication (RS-485 standard) comprising of PLCs, VFDs, HMIs, motors, RTU, SCADA, etc. within noisy environments over long distance, etc.

Construction Details

Conductor
ElementNo. of ElementsSizeStrandingMaterial
Pair(s)224 AWG7x32TC - Tinned Copper
Insulation
ElementMaterialNom. ThicknessNom. Insulation DiameterColor Code
Pair(s)PE - Polyethylene0.56 mm (0.022 in)1.73 mm (0.0681 in)White/Blue & Blue/White, White/Orange & Orange/White
Outer Shield
Shield TypeMaterialCoverageDrainwire Type
TapeBi-Laminate (Alum+Poly)100%24 AWG (7x32) TC
BraidTinned Copper (TC)90%
Outer Jacket
MaterialNom. ThicknessNom. Diameter
LSZH - Low Smoke Zero Halogen (Flame Retardant)0.7 mm (0.028 in)8.0 mm (0.31 in)
Overall Cable Diameter (Nominal): 8.0 mm (0.31 in)

Electrical Characteristics

Electricals
ElementNom. Conductor DCRNom. Capacitance Cond-to-CondNom. Capacitance Cond-to-Other (Conds + Shield)Nom. Characteristic ImpedenceNom. Velocity of Prop.Max. Current
Pair(s)78.7 Ohm/km (24.0 Ohm/1000ft)42 pF/m (13 pF/ft)78 pF/m120 Ohm66%2.1 Amps per Conductor
Nom. Outer Shield DCR: 7.2 Ohm/km (2.2 Ohm/1000ft)
High Frequency (Nominal/Typical)
ElementFrequency [MHz]Nom. Insertion Loss (Attenuation)
Pair(s)11.97 dB/100m (0.600 dB/100ft)
Voltage
Voltage Rating
300 V

Mechanical Characteristics

Temperature
OperatingInstallationStorage
-20°C To +70°C-10°C To +70°C-20°C To +70°C
Bend Radius
Stationary Min.Installation Min.
40 mm (1.6 in)80 mm (3.1 in)
Max. Pull Tension: 395 N (88.8 lbf)
Bulk Cable Weight: 68 kg/km (46 lbs/1000ft)

Standards and Compliance

Environmental Suitability: Indoor - Euroclass Eca, Indoor, Non-Halogenated
Flammability / Reaction to Fire: IEC 60332-1-2
CPR Compliance: CPR Euroclass: Eca
ISO/IEC Compliance: IEC 61034-2 - Smoke Density Min Transmittance = 60%
CENELEC Compliance: EN 50290-2-20
European Halogen Free Standards: IEC 62821-1 Halogen Free Compliance = Yes, IEC 60754-1 - Halogen Amount = Zero, IEC 60754-2 - Halogen Acid Gas Amount - Max. Conductivity = 2.5 µS/mm, IEC 60754-2 - Halogen Acid Gas Amount - Min. pH = 4.3
European Directive Compliance: EU CE Mark, EU Directive 2015/863/EU (RoHS 2 amendment), EU Directive 2011/65/EU (RoHS 2)
UK Regulation Compliance: UKCA Mark
Other Standard Compliance(s): DMX-512

Product Notes

Notes: This is a preliminary Technical Design Specification (TDS). The minimum business quantity to offer is 3km for the first order. This product will have Gray as standard color and 305mt as standard put-ups. Additional options for colors and put-ups are available on special request. The estimated production lead time for the first order will be similar to the production lead time of 9842NH. Please liaise with your Belden representative for confirmation.

History

Update and Revision: Revision Number: 0.7 Revision Date: 07-24-2025
Date: 2012-05-10
Belden-NPI-RS-485-Product-Bulletin-2022-04.pdf
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