Product Number: DIW50

Category 3 Backbone Cable, 50 Pair, U/UTP, CMR

Category 3 Premise Backbone Cable (16MHz), DIW 50 Pair, 24 AWG Solid Bare Copper Conductors, U/UTP, Riser-CMR, PVC jacket

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    Americas | Asia Pacific
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    Active
DIW50
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Specifications

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Suitable Applications

Premise Backbone Cable, Ethernet 10BASE-T, Analog Phone, FAX

Conductor

Size Stranding Material No. of Pairs
24 Solid BC - Bare Copper 50

Insulation

Material Color Code
PVC - Polyvinyl Chloride Western Electric Bound in 25 Pair Sub-Units, Binder 1: Blue/White, Binder 2: Orange/White

Outer Jacket

Material Nom. Diameter Ripcord
PVC - Polyvinyl Chloride 0.540 in (13.7 mm) Yes

Overall Cable Diameter (Nominal)

0.540 in (13.7 mm)

Electricals

Max. Conductor DCR Max. Capacitance Unbalance
93.8 Ohm/km (28.6 Ohm/1000ft) 330 pF/100m

Delay

Frequency Max. Delay Max. Delay Skew Nom. Velocity of Prop.
16 MHz 543 ns/100m 45 ns/100m 68%

High Frequency

Frequency [MHz] Max. Insertion Loss (Attenuation) Min. NEXT [dB] Min. PSNEXT [dB] Min. ACR [dB] Min. PSACR [dB] Min. RL (Return Loss) [dB] Max./Min. Fitted Impedance
0.772 2.2 dB/100m 47.0 43.0 50.1 46.1
1 2.6 dB/100m 45.0 41.0 47.8 43.8 12.0 100 ± 15 Ohm
4 5.6 dB/100m 36.0 32.0 36.0 32.0 12.0 100 ± 15 Ohm
8 8.5 dB/100m 31.0 28.0 28.3 24.3 12.0 100 ± 15 Ohm
10 9.7 dB/100m 30.0 26.0 26.2 22.3 12.0 100 ± 15 Ohm
16 13.1 dB/100m 27.0 23.0 20.1 16.1 10.0 100 ± 15 Ohm

Voltage

UL Voltage Rating
300 V (CMR)

Temperature

UL Temperature Operating Installation Storage
60°C -30°C To +60°C -30°C To +60°C -30°C To +60°C

Bend Radius

Stationary Min. Installation Min.
5.5 in (140 mm) 11.0 in

Max. Pull Tension

300 lbs (140 kg)

Bulk Cable Weight

179 lbs/1000ft

Environmental Suitability

Riser, Indoor

Flammability / Reaction to Fire

UL 1666 Riser, FT4

CPR Compliance

CPR Euroclass: Eca

NEC / UL Compliance

CMR

CEC / C(UL) Compliance

CMR

Data Category

Category 3

TIA/EIA Compliance

ANSI/TIA-568.2-D Category 3

European Directive Compliance

EU CE Mark, EU Directive 2015/863/EU (RoHS 2 amendment), EU Directive 2011/65/EU (RoHS 2), EU Directive 2012/19/EU (WEEE), REACH: 2017-07-10

UK Regulation Compliance

UKCA Mark

APAC Compliance

China RoHS II (GB/T 26572-2011)

Plenum Number

DPLN50

Notes

Electrical values are expected performance based on cable testing and representative performance within a typical Belden system. Print Includes Descending Footage/Meter Markings.

Update and Revision

Revision Number: 0.506 Revision Date: 09-07-2025

Update and Revision

Revision Number: 0.506 Revision Date: 09-07-2025


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Part Numbers

Item # Color Putup Type Length UPC
DIW50 732CUT Olive Cut to Length 612825060659
DIW50 732CUT Olive Cut to Length 1 ft 612825060659
DIW50 7321000 Olive Reel 1,000 ft 612825060666
DIW50 7321000 Olive Reel 1,000 ft 612825060666
DIW50 7322500 Olive Reel 2,500 ft 612825060673
DIW50 7322500 Olive Reel 2,500 ft 612825060673

Resources

Technical Documents
Product Guides
Reference Manuals
Compliance Documentation

Resources

Technical Documents
Product Guides
Reference Manuals
Compliance Documentation