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
CA Prop 65 (CJ for Wire & Cable): Yes
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 #ColorUPCLength
DIW25 7321000Olive6128250606351,000 ft
DIW25 7321000Olive6128250606351,000 ft
DIW25 732500Olive612825060628500 ft
DIW25 732500Olive612825060628500 ft
DIW25 7325000Olive6128250606425,000 ft
DIW25 7325000Olive6128250606425,000 ft
DIW25 732500BOlive6128252855331,500 ft
DIW25 732CUTOlive612825060611
DIW25 732CUTOlive6128250606111 ft
Patent: https://www.belden.com/resources/patents

Product Notes

Notes: Print Includes Descending Footage/Meter Markings.

History

Update and Revision: Revision Number: 0.311 Revision Date: 08-22-2019
Date: 2005-08-19
Belden-Copper-Catalog-2016.pdf
Copper-Structured-Cabling-Design-Guide.pdf
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