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1540A

Product Number: 1540A

RISC 6000, #28-7c, BC, PO, O/A Foil+Braid, PVC Jkt, CL2

RISC 6000 IBM XX, YY 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).

Availability
Global
Status
Active
Orderable items
1

Ships from and sold by A5 IT.

Part numbers

1540A is a product family. Each item number below is a separate orderable part — colour, put-up and length differ.

Item #ColorUPCFootnoteOrder
1540A 0081000Gray612825117643COrder online

Specifications

Product Overview

Suitable ApplicationsFor RISC Systems where energy efficiency is Key

Construction Details

Overall Cable Diameter (Nominal)0.19 in

Conductor

ElementConductor(s)
No. of Elements7
Size28 AWG
Stranding7x36
MaterialBC - Bare Copper

Insulation

ElementConductor(s)
MaterialPP/PE - Polypropylene/Polyethylene
Nom. Thickness0.01 in (0.25 mm)
Nom. Insulation Diameter0.035 in mm
Color CodeIBM – RISC 6000

Outer Shield

Shield TypeMaterialCoverageDrainwire Type
TapeBi-Laminate (Alum+Poly)100%28 AWG (7x36) TC
BraidTinned Copper (TC)67%

Outer Jacket

MaterialPVC - Polyvinyl Chloride
Nom. Thickness0.019 in (0.48 mm)
Nom. Diameter0.19 in

Electrical Characteristics

Nom Outer Shield DCR7.2 Ohm/1000ft (24 Ohm/km)

Electricals

Nom. Conductor DCR66.6 Ohm/1000ft
Nom. Capacitance Cond-to-Cond12.5 pF/ft (41.0 pF/m)
Nom. Capacitance Cond-to-Other (Conds + Shield)23 pF/ft (75 pF/m)
Max. Current0.9 Amps per Conductor at 25oC

Voltage

UL Voltage Rating300 V

Mechanical Characteristics

Max. Pull Tension14.7 lbs (6.67 kg)
Bulk Cable Weight19 lbs/1000ft

Temperature

UL Temperature60°C

Bend Radius

Stationary Min.1.9 in (48 mm)
Installation Min.1.9 in

Standards and Compliance

Environmental SuitabilityIndoor
Flammability / Reaction to FireUL1685 UL Loading
NEC / UL ComplianceArticle 725, CL2
European Directive ComplianceEU CE Mark, EU Directive 2011/65/EU (RoHS 2), EU Directive 2012/19/EU (WEEE)
APAC ComplianceChina RoHS II (GB/T 26572-2011)
Other Standard Compliance(s)IBM Part No. XX, YY Cable, RJ-45 compatible

Product Notes

NotesPatent # 5,220,130. Single conductors are dual insulated. Outer layer of insulation must be stripped off before attaching modular connectors.

History

Update and RevisionRevision Number: 0.342 Revision Date: 09-07-2025
FootnoteC - CRATE REEL PUT-UP.

Resources

Related multi-pair cable