Product Hierarchy
Product Hierarchy

DIW25 - CAT3 Backbone, 25pr, UTP, PVC Jkt, CMR


CAT3 (16MHz), DIW 25-Pair, U/UTP-unshielded, Riser-CMR, Premise Backbone Cable, 24 AWG solid bare copper conductors, PVC insulation, ripcord, PVC jacket

Product Overview

Suitable Applications: Premise Backbone Cable

Physical Characteristics (Overall)

Conductor
AWGStrandingMaterialNo. of Pairs
24SolidBC - Bare Copper25
Conductor Count: 50
Total Number of Pairs: 25
Insulation
Material
PVC - Polyvinyl Chloride
Bonded-Pair: N/A
Color Chart
NumberColor
1White/Blue & Blue/White
2White/Orange & Orange/White
3White/Green & Green/White
4White/Brown & Brown/White
5White/Slate & Slate/White
6Red/Blue & Blue/Red
7Red/Orange & Orange/Red
8Red/Green & Green/Red
9Red/Brown & Brown/Red
10Red/Slate & Slate/Red
11Black/Blue & Blue/Black
12Black/Orange & Orange/Black
13Black/Green & Green/Black
14Black/Brown & Brown/Black
15Black/Slate & Slate/Black
16Yellow/Blue & Blue/Yellow
17Yellow/Orange & Orange/Yellow
18Yellow/Green & Green/Yellow
19Yellow/Brown & Brown/Yellow
20Yellow/Slate & Slate/Yellow
21Violet/Blue & Blue/Violet
22Violet/Orange & Orange/Violet
23Violet/Green & Green/Violet
24Violet/Brown & Brown/Violet
25Violet/Slate & Slate/Violet
Outer Jacket Material
MaterialNominal DiameterRipcord
PVC - Polyvinyl Chloride0.380 inYes

Electrical Characteristics

Conductor DCR
Max. Conductor DCRMax. DCR Unbalance
93.8 Ohm/km5 %
Capacitance
Max. Capacitance UnbalanceNom.Mutual Capacitance
330 pF/100m17 pF/ft
Delay
Frequency [MHz]Max. DelayMax. Delay SkewNominal Velocity of Propagation (VP) [%]
16 MHz543 ns/100m45 ns/100m68 %
High Freq
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 MHz2.2 dB/100m47.0 dB43.0 dB50.1 dB46.1 dB
1 MHz2.6 dB/100m45.0 dB41.0 dB47.8 dB43.8 dB12.0 dB100 ± 15 Ohm
4 MHz5.6 dB/100m36.0 dB32.0 dB36.0 dB32.0 dB12.0 dB100 ± 15 Ohm
8 MHz8.5 dB/100m31.0 dB28.0 dB28.3 dB24.3 dB12.0 dB100 ± 15 Ohm
10 MHz9.7 dB/100m30.0 dB26.0 dB26.2 dB22.3 dB12.0 dB100 ± 15 Ohm
16 MHz13.1 dB/100m27.0 dB23.0 dB20.1 dB16.1 dB10.0 dB100 ± 15 Ohm
Voltage
UL Voltage Rating
300 V RMS

Temperature Range

Installation Temp Range: -30°C To +60°C
UL Temp Rating: 60°C
Storage Temp Range: -30°C To +60°C
Operating Temp Range: -30°C To +60°C

Mechanical Characteristics

Bulk Cable Weight: 100 lbs/1000ft
Max Recommended Pulling Tension: 150 lbs
Min Bend Radius During Installation: 7.75 in
Min Bend Radius/Minor Axis: 4.0 in

Standards

NEC/(UL) Specification: CMR
CEC/C(UL) Specification: CMR
Data Category: Category 3
ANSI Compliance: S-90-661-2012 Category 3, ANSI/NEMA WC-63.1 Category 3
Telecommunications Standards: ANSI/TIA-568-C.2 Category 3

Applicable Environmental and Other Programs

Environmental Space: Riser
EU Directive 2000/53/EC (ELV): Yes
EU Directive 2003/11/EC (BFR): Yes
EU Directive 2003/96/EC (BFR): Yes
EU Directive 2011/65/EU (ROHS II): Yes
EU Directive 2012/19/EU (WEEE): Yes
EU Directive 2015/863/EU: Yes
EU Directive Compliance: Yes
EU CE Mark: Yes
EU REACH SVHC Compliance (yyyy-mm-dd): 2017-07-10
EU RoHS Compliance Date (yyyy-mm-dd): 2005-08-19
MII Order #39 (China RoHS): Yes

Suitability

Suitability - Aerial: No
Suitability - Burial: No
Suitability - Hazardous Locations: No
Suitability - Indoor: Yes
Suitability - Non-Halogenated: No
Suitability - Oil Resistance: No
Suitability - Outdoor: No
Suitability - Sunlight Resistance: No

Flammability, LS0H, Toxicity Testing

C(UL) Flammability: FT4
UL Flammability: UL 1666 Riser
UL voltage rating: 300 V RMS

Plenum/Non-Plenum

Plenum (Y/N): No
Plenum Number: DPLN25

Part Number

Variants
Item #ColorPutup TypeLengthUPC
DIW25 732CUTOliveCut to Length612825060611
DIW25 732CUTOliveCut to Length1 ft612825060611
DIW25 732500OliveReel500 ft612825060628
DIW25 732500OliveReel500 ft612825060628
DIW25 7321000OliveReel1,000 ft612825060635
DIW25 7321000OliveReel1,000 ft612825060635
DIW25 732500BOliveReel1,500 ft612825285533
DIW25 7325000OliveReel5,000 ft612825060642
DIW25 7325000OliveReel5,000 ft612825060642
Patent: https://www.belden.com/resources/patents

Product Notes

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

History

Update and Revision: Revision Number: 0.318 Revision Date: 04-28-2020
Date: 2005-08-19
Belden-Copper-Catalog-2016.pdf
Copper-Structured-Cabling-Design-Guide.pdf
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