Product Hierarchy
Product Hierarchy

1538A - RISC 6000, #28-3pr, BC, PO, O/A Foil+Braid, PVC Jkt, CL2, 120Ω


RISC 6000 IBM N Cable, 28 AWG stranded (7x36) bare copper conductors, patented step polyolefin insulation, twisted pairs, overall Beldfoil® shielded + tinned copper braid shield (65% coverage), tinned copper drain wire, PVC jacket (see RISC color code chart below).

Product Overview

Suitable Applications: For RISC Systems where energy efficiency is Key

Construction Details

Conductor
ElementNo. of ElementsSizeStrandingMaterial
Pair(s)328 AWG7x36BC - Bare Copper
Insulation
ElementMaterialNom. ThicknessNom. Insulation DiameterColor Code
Pair(s)PP - Polypropylene0.01 in (0.25 mm)0.035 in (0.89 mm)White & Blue, White & Orange, White & Green
Outer Shield
Shield TypeMaterialCoverageDrainwire Type
TapeBi-Laminate (Alum+Poly)100%28 AWG (7x36) TC
BraidTinned Copper (TC)65%
Outer Jacket
MaterialNom. ThicknessNom. Diameter
PVC - Polyvinyl Chloride0.02 in (0.51 mm)0.230 in
Overall Cable Diameter (Nominal): 0.230 in

Electrical Characteristics

Electricals
Nom. Conductor DCRNom. Capacitance Cond-to-CondNom. Capacitance Cond-to-Other (Conds + Shield)Nom. Characteristic ImpedenceMax. Current
70.6 Ohm/1000ft12 pF/ft (39 pF/m)21.5 pF/ft (70.5 pF/m)120 Ohm0.7 Amps per Conductor at 30ºC
Voltage
UL Voltage Rating
300 V

Mechanical Characteristics

Temperature
UL TemperatureOperating
60°C-20°C to +60°C
Bend Radius
Stationary Min.Installation Min.
2.30 in (58.4 mm)2.30 in
Max. Pull Tension: 33.9 lbs (15.4 kg)
Bulk Cable Weight: 22 lbs/1000ft

Standards and Compliance

Environmental Suitability: Indoor, Indoor
Flammability / Reaction to Fire: UL1685 UL Loading
CPR Compliance: CPR Euroclass: Eca
NEC / UL Compliance: Article 725, CL2
European Directive Compliance: EU Directive 2011/65/EU (RoHS 2), EU Directive 2012/19/EU (WEEE)
UK Regulation Compliance: UKCA Mark
APAC Compliance: China RoHS II (GB/T 26572-2011)
Other Standard Compliance(s): IBM Part No. N Cable, RJ-45 compatible

Product Notes

Notes: US Patent # 5,220,130. Single conductors are dually insulated. The outer layer of insulation must be stripped off before attaching modular connectors.

History

Update and Revision: Revision Number: 0.426 Revision Date: 02-03-2025

Part Numbers

Variants
Item #ColorUPCFootnote
1538A 0081000Gray612825117612C
1538A 008U1000Gray612825117605
Date: 2004-01-01
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