Product Hierarchy
Product Hierarchy

1227A1 - Category 3 Horizontal Cable, 2 Pair, U/UTP, CMR

Category 3 Premise Horizontal Cable (16MHz), 2 Pair, 24 AWG Solid Bare Copper Conductors, U/UTP, Riser-CMR, PVC Jacket

Product Overview

Suitable Applications: Ethernet 10BASE-T, Analog Phone, FAX

Construction Details

SizeStrandingMaterialNumber of Pairs
24 AWGSolidBC - Bare Copper2
MaterialColor Code
PO - PolyolefinWhite/Blue Stripe & Blue, White/Orange Stripe & Orange
Outer Jacket
MaterialNom. DiameterRipcord
PVC - Polyvinyl Chloride0.173 in (4.39 mm)No
Overall Cable Diameter (Nominal): 0.173 in (4.39 mm)

Electrical Characteristics

Max. Conductor DCRMax. Capacitance Unbalance
93.8 Ohm/km (28.6 Ohm/1000ft)90 pF/100m
FrequencyMax. DelayMax. Delay SkewNom. Velocity of Prop.
16 MHz543 ns/100m45 ns/100m70%
High Frequency
Frequency [MHz]Max. Insertion Loss (Attenuation)Min. NEXT [dB]Min. SRL (Structural Return Loss) [dB]Max./Min. Fitted Impedance [Ohm]
12.6 dB/100m41.012.0100 ± 15
45.6 dB/100m32.012.0100 ± 15
88.5 dB/100m27.012.0100 ± 15
109.7 dB/100m26.012.0100 ± 15
1613.1 dB/100m23.010.0100 ± 15
UL Voltage Rating
300 V (CMR)

Mechanical Characteristics

UL TemperatureOperatingInstallationStorage
75°C-20°C To +75°C0°C To +50°C-20°C To +75°C
Bend Radius
Stationary Min.Installation Min.
1.0 in (25 mm)1.75 in (44.5 mm)
Max. Pull Tension: 15 lbs (6.8 kg)
Bulk Cable Weight: 12 lbs/1000ft

Standards and Compliance

Environmental Suitability: Riser, Indoor, Outdoor, Sunlight Resistance
Sustainability: Product Lens™, Environmental Product Declaration (EPD) Available
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: Article 800, CMR
CEC / C(UL) Compliance: CMR
ICEA Compliance: S-90-661-2012
NEMA Compliance: NEMA WC-63.1
Data Category: Category 3
TIA/EIA Compliance: ANSI/TIA-568.2-D Category 3
Third Party Performance Verification: Category 3
European Directive Compliance: 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
UK Regulation Compliance: UKCA Mark
APAC Compliance: China RoHS II (GB/T 26572-2011)
Plenum Number: 1243A2

Product Notes

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


Update and Revision: Revision Number: 0.507 Revision Date: 05-04-2022

Part Numbers

Item #ColorPutup TypeLengthUPC
1227A1 008U1000GrayUnReel1,000 ft612825109266
1227A1 Q5HU1000WhiteUnReel1,000 ft612825109259
Date: 2004-01-01
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