Product Hierarchy
Product Hierarchy

9207NH - Computer Cable for EIA RS-232 Applications

20 AWG stranded (7x28) one tinned copper conductor, one bare copper conductor, polyethylene insulation, polyethylene inner jacket, Duofoil® (100% coverage) plus a tinned copper braid shield (85% coverage), LSZH outer jacket, Flame resistance IEC 60332-3C

Product Overview

Suitable Applications: Twinaxial instrumentation and computer cable; For data transmission applications

Physical Characteristics (Overall)

ElementAWGStrandingMaterialNo. of Conductors
Insulated conductor A207x28BC - Bare Copper1
Insulated conductor B207x28TC - Tinned Copper1
Conductor Count: 2
Total Number of Pairs: 1
ElementMaterialNominal DiameterDiameter +/- Tolerance
Insulated conductor APE - Polyethylene2.11 mm0.08 mm
Insulated conductor BPE - Polyethylene2.11 mm0.08 mm
Color Chart
Insulated conductor AClear
Insulated conductor BClear
Outer Shield Material
TypeMaterialMaterial Trade NameCoverage [%]Thickness of Foil
TapeAlum / Poly / AlumDuofoil®9 / 23 / 9 µm
BraidTC - Tinned Copper85 %
Outer Jacket Material
MaterialNominal DiameterNominal Wall Thickness
LSZH - Low Smoke Zero Halogen flame retardant8.6 mm0.89 mm

Construction and Dimensions

2 wires twisted to cable core

Electrical Characteristics

Conductor DCR
Nominal Conductor DCRNominal Outer Shield DCR
31.2 Ohm/km6.6 Ohm/km
Nom. Capacitance Conductor to ConductorNom. Capacitance Conductor to Shield
47.6 pF/m75.5 pF/m
Nominal Inductance
0.51 µH/m
Nominal Characteristic Impedance
100 Ohm
High Frequency (Nominal/Typical)
Frequency [MHz]Nom. Insertion Loss
1 MHz0.98 dB/100m
10 MHz3.94 dB/100m
50 MHz9.19 dB/100m
100 MHz13.45 dB/100m
200 MHz21 dB/100m
400 MHz33.46 dB/100m
Nominal DelayNominal Velocity of Propagation (VP) [%]
510 ns/ft66 %
Voltage Rating [V]
300 V

Temperature Range

Installation Temp Range: -15°C To +80°C
Storage Temp Range: -45°C To +80°C
Operating Temp Range (Flexible Install): -15°C To +80°C
Operating Temp Range (Fixed Install): -45°C To +80°C

Mechanical Characteristics

Oil Resistance: ASTMD741
Min Bend Radius During Installation: 86 mm


CPR Euroclass: Eca
Other Specification: BS 7655 section 6.1 table 1, LTS 3

Applicable Environmental and Other Programs

Environmental Space: Indoor - Euroclass Eca
EU RoHS Compliance Date (yyyy-mm-dd): 1998-01-01

Flammability, LS0H, Toxicity Testing

ISO/IEC Flammability: IEC 60332-1-2 and IEC 60332-3-24
Amount of Halogen acc. to IEC 60754-1 & EN50267-1: Zero

Part Number

Item #ColorPutup TypeLengthEAN
9207NH.00100BlackReel100 m8719605020222
9207NH.00152BlackReel152 m8719605020246
9207NH.00305BlackReel305 m8719605020253
9207NH.00500BlackReel500 m8719605020260
9207NH.001000BlackReel1,000 m8719605020239
9207NH.01250GrayReel250 m8719605020284
9207NH.011000GrayReel1,000 m8719605020277


Update and Revision: Revision Number: 0.188 Revision Date: 04-16-2020
Date: 1998-01-01
Belden Cables, Wires and Accessories for Industrial Applications_Original_87238-1.pdf
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