Belden

7890A - Audio Snake Cable, #26-4pr, TC, Indiv. Shielded, CM

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SKU:
7890A
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Description

Digital Audio Snake Cable, CM-Rated, 4-26 AWG tinned copper pairs, Datalene® insulation, individually shielded with Beldfoil® bonded to numbered/color-coded PVC jackets so both strip simultaneously, PVC jacket

Specifications

Specifications

Physical Characteristics (Overall)

Conductor

AWGStrandingMaterialNominal DiameterNo. of Pairs
267x34TC - Tinned Copper0.019 in4
Conductor Count8
Total Number of Pairs4

Insulation

MaterialMaterial Trade NameNominal DiameterNominal Wall Thickness
PE - Polyethylene (Foam)Datalene®0.054 in0.0175 in

Color Chart

NumberColor
1Brown and Numbered 1
2Red and Numbered 2
3Orange and Numbered 3
4Yellow and Numbered 4

Inner Shield

TypeMaterialMaterial Trade NameCoverage [%]Drainwire MaterialDrainwire DiameterDrainwire AWGDrainwire Construction n x D
TapeBi-Laminate (Alum+Poly)Beldfoil®100%TC - Tinned Copper0.019 in26Stranded
Table NotesIndiv. Foil tapes bonded to inner jacket

Inner Jacket

MaterialNominal DiameterNominal Wall Thickness
PVC - Polyvinyl Chloride0.136 in0.014 in

Outer Shield

TypeMaterialMaterial Trade NameCoverage [%]Drainwire MaterialDrainwire DiameterDrainwire AWGDrainwire Construction n x D
TapeBi-Laminate (Alum+Poly)Beldfoil®100%TC - Tinned Copper0.019 in26Stranded

Outer Jacket

MaterialNominal DiameterNominal Wall ThicknessRipcord
PVC - Polyvinyl Chloride0.399 in0.034 inYes

Electrical Characteristics

Conductor DCR

Individual Pair Nominal Shield DCRNominal Conductor DCRNominal Conductor DCR Conductor Resistance
25.5 Ohm/1000ft37.3 Ohm/1000ft37.3 Ohm/1000ft

Capacitance

Nom. Capacitance Conductor to ConductorNom. Capacitance Conductor to Other Conductor to Shield
13 pF/ft25 pF/ft

Inductance

Nominal Inductance
0.25 µH/ft

Impedance

Nominal Characteristic Impedance
110 Ohm

High Frequency (Nominal/Typical)

Frequency [MHz]Nom. Insertion Loss
0.384 MHz0.84 dB/100ft
0.7056 MHz1.14 dB/100ft
0.768 MHz1.18 dB/100ft
1.024 MHz1.34 dB/100ft
1.4112 MHz1.5 dB/100ft
1.536 MHz1.54 dB/100ft
2.048 MHz1.69 dB/100ft
2.8224 MHz1.86 dB/100ft
3.072 MHz1.92 dB/100ft
4.096 MHz2.14 dB/100ft
5.6448 MHz2.4 dB/100ft
6.144 MHz2.47 dB/100ft
8.192 MHz2.75 dB/100ft
11.2896 MHz3.09 dB/100ft
12.288 MHz3.18 dB/100ft
24.576 MHz4.2 dB/100ft

Delay

Nominal Velocity of Propagation (VP) [%]
76%

High Frequency

Frequency [MHz]
0.384 MHz
0.7056 MHz
0.768 MHz
1.024 MHz
1.4112 MHz
1.536 MHz
2.048 MHz
2.8224 MHz
3.072 MHz
4.096 MHz
5.6448 MHz
6.144 MHz
8.192 MHz
11.2896 MHz
12.288 MHz
24.576 MHz

Temperature Range

Operating Temperature Range-30°C To +80°C

Mechanical Characteristics

Bulk Cable Weight52 lbs/1000ft
Max. Pull Tension45 lbs
Min. Bend Radius/Minor Axis4 in

Standards

NEC/(UL) ComplianceCM
CEC/C(UL) ComplianceCM
CPR EuroclassEca

Applicable Environmental and Other Programs

Environmental SpaceIndoor (Not Riser or Plenum)
EU Directive 2000/53/EC (ELV)Yes
EU Directive 2003/11/EC (BFR)Yes
EU Directive 2011/65/EU (RoHS 2)Yes
EU Directive 2012/19/EU (WEEE)Yes
EU Directive 2015/863/EU (RoHS 2 amendment)Yes
EU Directive ComplianceEU Directive 2003/11/EC (BFR)
EU CE MarkYes
MII Order #39 (China RoHS)Yes

Suitability

Suitability - IndoorYes

Flammability, LS0H, Toxicity Testing

UL FlammabilityUL1685 UL Loading
CSA FlammabilityFT4
IEC FlammabilityIEC 60332-1-2

Plenum/Non-Plenum

Plenum (Y/N)No

Related Part Numbers

FootnoteC - CRATE REEL PUT-UP.

Product Notes

NotesPair jackets and shields are bonded so both strip simultaneously with automatic stripping equipment. Datalene® insulation features include low dielectric constant and a dissipation factor for high-speed, low-distortion data handling. Physical properties include good crush resistance and light weight.

History

Update and RevisionRevision Number: 0.446 Revision Date: 12-20-2022
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Additional Information

Variant_Options:
Item #|Color|Put-Up Type|Length|UPC
Variant_Options 7890A Z4B2000:
7890A Z4B2000|Violet|Reel|2,000 ft|612825190738
Variant_Options 7890A Z4B500:
7890A Z4B500|Violet Z4B|Reel|500 ft|612825190745
Variant_Options 7890A Z4B1000:
7890A Z4B1000|Violet Z4B|Reel|1,000 ft|612825433897
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