The DH-PFM920I-6UN-C is a UTP CAT6 network cable from Dahua, built for installers who need reliable, high-bandwidth cabling for IP camera systems, network switches, and general Ethernet infrastructure. Supplied at 305 metres per carton, it’s designed for large-scale installations where consistent cable quality across long runs matters.
At its core, the DH-PFM920I-6UN-C uses high-purity oxygen-free copper conductors at 99.97% purity, which helps maintain signal integrity and reduces transmission loss compared to lower-grade copper alternatives. Each of the four twisted pairs is colour-coded for straightforward termination and troubleshooting on site.
Performance is rated for standard CAT6 specifications, supporting characteristic impedance of 100 ± 15Ω and near-end crosstalk of at least 39.3 dB per 100 metres at 250 MHz. These figures make the cable suitable for Gigabit Ethernet and Power over Ethernet applications, including IP camera deployments that draw power over the same cable run.
The cable’s construction includes an HDPE-insulated conductor design and a customized PVC outer sheath rated CE CPR Eca for flame retardancy, giving installers added confidence around fire safety compliance in commercial and residential buildings. A rip cord is built in for faster, cleaner stripping during termination.
Operating temperature ranges from –20°C to +60°C, while installation temperature is rated between 0°C and +50°C, giving flexibility for a range of climates and job sites. The cable also passes vertical fire propagation testing in line with IEC 60332-1-2.
Each carton ships with 305 metres (1000 ft) of cable, packaged with two cartons inside a protective outer box for easier handling and storage. Backed by a 10-year warranty, the DH-PFM920I-6UN-C is built for installers who want dependable performance without recurring cable failures down the line.
For PoE-powered camera runs, network switch wiring, or any structured cabling project that needs consistent CAT6 performance at scale, the DH-PFM920I-6UN-C is a dependable choice.
DH-PFM920I-6UN-C Cable Construction
| Feature | Specification |
| Conductor Material | Oxygen free copper (99.97% purity) |
| Conductor Diameter | 0.53 mm ± 0.01 mm |
| Insulation Material | HDPE |
| Insulation Thickness | Min. average: 0.21 mm |
| Insulation Diameter | 0.95 mm ± 0.1 mm |
| Color Code (4 Pairs) |
• Pair 1: Blue, white/blue
• Pair 2: Orange, white/orange
• Pair 3: Green, white/green
• Pair 4: Brown, white/brown
|
| Separator | PE (Translucent 4.5 mm × 0.4 mm) |
| Rip Cord | Polyester (500D) |
| Sheath Material | PVC |
| Sheath Thickness | Min. average: 0.5 mm |
| Cable Diameter | 6.0 mm ± 0.3 mm |
| Sheath Color | White |
DH-PFM920I-6UN-C Electrical Characteristics
| Feature | Specification |
| Max. DC Resistance (Single Conductor) | 8.7 Ω/100 m |
| Min. Insulation Resistance | 5000 MΩ·km |
| Max. DC Resistance Unbalance | 2% (pair intra), 4% (pairs inter) |
| Dielectric Strength | No breakdown with 1 kV DC for 1 min |
| Characteristic Impedance | 100 ± 15 Ω |
| Near End Cross Talk (NEXT) | ≥39.30 dB/100 m @ 250 MHz |
| Max. Attenuation | 34.8 dB/100 m @ 250 MHz |
| Return Loss | ≥17.3 dB/100 m @ 250 MHz |
DH-PFM920I-6UN-C Mechanical & Environmental
| Feature | Specification |
| Tensile Strength | Sheath ≥ 13.5 MPa, Insulation ≥ 16 MPa |
| Elongation at Break | Sheath ≥ 150%, Insulation ≥ 300% |
| Conductor Elongation at Break | ≥10% |
| Installation Bending Radius | >8 times outer cable diameter |
| Tensile Strength & Elongation After Aging | ≥12.5 MPa, ≥100% |
| Insulation Shrinkage | ≤5% |
| Color Migration Resistance | No migration |
| Low Temp Bending & Heat Shock Tests | No cracking after test |
| Operating Temperature | –20 °C to +60 °C (–4 °F to +140 °F) |
| Installation Temperature | 0 °C to +50 °C (32 °F to 122 °F) |
| Storage Temperature & Humidity | –10 °C to +40 °C (14 °F to 104 °F), <60% RH |
| Fire Propagation Compliance | IEC 60332-1-2 |
DH-PFM920I-6UN-C Packaging & Standards
| Feature | Specification |
| Cable Length | 305.0 m (1000.66 ft) ± 1.5 m (4.92 ft) |
| Packaging Method | 305.0 m per carton; 1 protection carton containing 2 inner cartons |
| Inner Carton Dimensions | 416.0 mm × 412.0 mm × 220.0 mm (16.37″ × 16.22″ × 8.66″) (L × W × H) |
| Weight |
Net: ≥10.5 kg (23.15 lb)
Gross: ≥11.5 kg (25.35 lb)
|
| Executive Standards | Q/DXJ 067-2019, EN50575-2014 |
| Certification | CPR Eca |
DH-PFM920I-6UN-C Transmission Performance (100 m at 20 °C)
| Frequency (MHz) | Phase Delay ≤ (ns) | IL ≤ (dB) | TCL ≥ (dB) | EL TCTL ≥ (dB) | NEXT ≥ (dB) | PS NEXT ≥ (dB) | EL FEXT ≥ (dB) | PS EL FEXT ≥ (dB) | RL ≥ (dB) | Delay Skew ≤ (ns) | Impedance Zc (Ω) |
| 1 | — | — | 50.0 | 35.0 | — | — | — | — | — | — | — |
| 4 | 552.0 | 4.0 | 44.0 | 23.0 | 66.3 | 63.3 | 56.0 | 53.0 | 23.0 | 45.0 | 100 ± 15 |
| 8 | 547.0 | 5.6 | 41.0 | 16.9 | 61.8 | 58.8 | 49.9 | 46.9 | 24.5 | 45.0 | 100 ± 15 |
| 10 | 545.0 | 6.4 | 40.0 | 15.0 | 60.3 | 57.3 | 48.0 | 45.0 | 25.0 | 45.0 | 100 ± 15 |
| 16 | 543.0 | 8.1 | 38.0 | 10.9 | 57.2 | 54.2 | 43.9 | 40.9 | 25.0 | 45.0 | 100 ± 15 |
| 20 | 542.0 | 9.0 | 37.0 | 9.0 | 55.8 | 52.8 | 42.0 | 39.0 | 25.0 | 45.0 | 100 ± 15 |
| 25 | 541.0 | 10.1 | 36.0 | 7.0 | 54.3 | 51.3 | 40.0 | 37.0 | 24.3 | 45.0 | 100 ± 15 |
| 30 | 540.6 | 11.0 | 35.2 | 5.5 | 53.1 | 50.1 | 38.5 | 35.5 | 23.8 | 45.0 | 100 ± 15 |
| 31.25 | 540.0 | 11.3 | 35.1 | — | 52.9 | 49.9 | 38.1 | 35.1 | 23.6 | 45.0 | 100 ± 15 |
| 62.5 | 539.0 | 16.3 | 32.0 | — | 48.4 | 45.4 | 32.1 | 29.1 | 21.5 | 45.0 | 100 ± 15 |
| 100 | 538.0 | 21.0 | 30.0 | — | 45.3 | 42.3 | 28.0 | 25.0 | 20.1 | 45.0 | 100 ± 15 |
| 200 | 537.0 | 30.7 | 27.0 | — | 40.8 | 37.8 | 22.0 | 19.0 | 18.0 | 45.0 | 100 ± 15 |
| 250 | 536.0 | 34.8 | 26.0 | — | 39.3 | 36.3 | 20.0 | 17.0 | 17.3 | 45.0 | 100 ± 15 |
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