DIW25 BELDEN
Document overview
- PDF pages: 2
Technical content
Page 1

Product: DIW25
Category 3 Backbone Cable, 25 Pair, U/UTP, CMR
Product Description
Category 3 Premise Backbone Cable (16MHz), DIW 25 Pair, 24 AWG Solid Bare Copper Conductors, U/UTP, Riser-CMR, PVC jacket
Technical Specifications
Product Overview
Suitable Applications:
Premise Backbone Cable, Ethernet 10BASE-T, Analog Phone, FAX
Construction Details
Conductor
| Size | Stranding | Material | Number of Pairs |
| 24 AWG | Solid | BC - Bare Copper | 25 |
Insulation
| Material | Color Code |
| PVC - Polyvinyl Chloride | Western Electric |
Outer Jacket
| Material | Nom. Diameter | Ripcord |
| PVC - Polyvinyl Chloride | 0.380 in (9.65 mm) | Yes |
Electrical Characteristics
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 [Ohm] |
|---|---|---|---|---|---|---|---|
| 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 |
| 4 | 5.6 dB/100m | 36.0 | 32.0 | 36.0 | 32.0 | 12.0 | 100 ± 15 |
| 8 | 8.5 dB/100m | 31.0 | 28.0 | 28.3 | 24.3 | 12.0 | 100 ± 15 |
| 10 | 9.7 dB/100m | 30.0 | 26.0 | 26.2 | 22.3 | 12.0 | 100 ± 15 |
| 16 | 13.1 dB/100m | 27.0 | 23.0 | 20.1 | 16.1 | 10.0 | 100 ± 15 |
Voltage
UL Voltage Rating
300 V (CMR)
Mechanical Characteristics
Page 2
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. | |
|---|---|---|
| 4.0 in (100 mm) | 7.75 in (197 mm) | |
| Max. Pull Tension: 150 lbs (68 kg) | ||
| Bulk Cable Weight: 100 lbs/1000ft | ||
Standards and Compliance
Environmental Suitability:
Riser, Indoor
Flammability / Reaction to Fire: UL 1666 Riser, FT4, FT4, IEC 60332-1-2
CPR Compliance:
CPR Euroclass: Eca; CPR UKCA Class: Eca
NEC / UL Compliance:
CMR
CEC / C(UL) Compliance:
CMR
ICEA Compliance:
S-90-661
NEMA Compliance:
NEMA WC-63.1
Data Category:
Category 3
TIA/EIA Compliance:
ANSI/TIA-568.2-D Category 3
European Directive
EU CE Mark, EU Directive 2015/863/EU (RoHS 2 amendment), REACH, EU Directive 2011/65/EU (RoHS 2), EU Directive 2012/19/EU (WEEE), REACH: 2020-01-16
Compliance:
UK Regulation Compliance:
UKCA Mark
APAC Compliance:
China RoHS II (GB/T 26572-2011)
Plenum Number:
DPLN25
Product Notes
Electrical values are expected performance based on cable testing and representative performance within a typical Belden system. Print Includes Descending Footage/Meter
Notes:
Markings.
History
Update and Revision:
Revision Number: 0.423 Revision Date: 11-09-2022
Part Numbers
Variants
| Item # | Color | Putup Type | Length | UPC |
|---|---|---|---|---|
| DIW25 732CUT | Olive | Cut to Length | 612825060611 | |
| DIW25 732CUT | Olive | Cut to Length | 1 ft | 612825060611 |
| DIW25 732500 | Olive | Reel | 500 ft | 612825060628 |
| DIW25 732500 | Olive | Reel | 500 ft | 612825060628 |
| DIW25 7321000 | Olive | Reel | 1,000 ft | 612825060635 |
| DIW25 7321000 | Olive | Reel | 1,000 ft | 612825060635 |
| DIW25 732500B | Olive | Reel | 1,500 ft | 612825285533 |
| DIW25 7325000 | Olive | Reel | 5,000 ft | 612825060642 |
| DIW25 7325000 | Olive | Reel | 5,000 ft | 612825060642 |
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negligence or any other theory, arising out of or in connection with the use, or inability to use, the information or specifications described herein. All sales of Belden products are subject to Belden's standard terms and conditions of sale. Belden believes this product to be in compliance with all applicable environmental programs as listed in the data sheet. The information provided is correct to the best of Belden's knowledge, information and belief at the date of its publication. This information is designed only as a general guide for the safe handling, storage, and any other operation of the product itself or the one that it becomes a part of. The Product
Disclosure is not to be considered a warranty or quality specification. Regulatory information is for guidance purposes only. Product users are responsible for determining the applicability of legislation and regulations based on their individual usage of the product.