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SPECIFICATION
HIGH SPEED LAN COMMUNICATIONS
PLENUM CABLE
ENHANCED PERFORMANCE CATEGORY 5
WITH LIMITED-COMBUSTIBLE WIRE
INSULATION
HORIZONTAL UNSHIELDED TWISTED
FOUR PAIR (UTP)*
* This specification conforms to the electrical requirements
of Anixter Level 6. For more info, see the Anixter Levels '97 program.
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TABLE OF CONTENTS
Section
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Subject
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1.0
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Engineering Drawing and Abstract
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2.0
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Scope
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3.0
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Physical
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3.1
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Conductor
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3.2
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Conductor Insulation
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3.3
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Pair Assembly
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3.4
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Outer Jacket
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3.5
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Color Codes
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3.6
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Cable Marking and Identification
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4.0
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Mechanical
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4.1
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Conductor Elongation
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4.2
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Cable Breaking Strength
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4.3
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Cable Bend Radius
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5.0
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Fire Performance
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5.1
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National Electrical Code
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5.2
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Potential Heat Requirement for Limited - Combustible Materials
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6.0
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Transmission
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6.1
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Capacitance Unbalance: Pair to Ground
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6.2
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Input Impedance
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6.3
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Attenuation to Cross Talk Ratio (ACR)
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6.4
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Propagation Delay
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6.5
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Propagation Delay Skew
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6.6
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Longitudinal Conversion Loss (LCL)
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7.0
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Reference Documentation
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1.0 Engineering Drawing and Abstract
ELECTRICAL SPECIFICATIONS SUMMARY
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Input Impedance
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100 Ohms ±15 Ohms from 1-100 MHz.
100 Ohms ±22 Ohms from 100-200 MHz.
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Minimum ACR
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Equal to or greater than 10 dB at 155 MHz (90 meter worst pair)
Equal to or greater than 0 dB at 200 MHz (90 meter worst pair)
Equal to or greater than 10 dB at 150 MHz (100 meter power sum)
Equal to or greater than 0 dB at 165 MHz (100 meter power sum)
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Maximum Propagation Delay
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5.7 ns/m at 100 MHz, max.
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Maximum Delay Skew
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25 ns at 100 meters
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Minimum LCL
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43 dB at 64 kHz
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CABLE CONSTRUCTION
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Conductor
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24 AWG solid annealed copper
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Primary Insulation
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FEP fluoropolymer resin on each pair
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Jacket
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Thermoplastic. Must meet all requirements for the expected life of the cable.
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2.0 Scope
This specification defines the requirements for commercially available high performance Category 5 plenum - rated LAN communications cable. The cable design described herein exceeds minimum ANSI / TIA / EIA 568A Category 5 and ISO / IEC 11801 Class D standards in critical transmission characteristics and provides additional specifications for conductor insulation. This specification provides more ACR margin (headroom) at transmission frequencies up to 155 MHz, better electrical balance and temperature / humidity stability for superior long term performance. In addition, this specification calls for a limited - combustible* wire insulation that meets the fire safety stipulation of the NFPA 90A Standard requiring limited - combustible materials in products for use in building plenums.
This specification conforms to the electrical requirements of Anixter Level 6.
* This term is used per NFPA 259 utilizing the maximum limits for potential heat of 3,500 Btu/lb (8.141 mJ/kg) per NFPA 90A.
3.0 Physical
In addition to the applicable requirements of ANSI / ICEA S-80-661 and UL 444, the physical design of the cable shall meet sections 3.1 to 3.6 inclusive.
3.1
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Conductor
Conductor shall be 24 AWG solid bare copper and shall conform to the applicable requirements of ANSI / ICEA S-80-661. Minimum dimensions and maximum strand length shall be in accordance with UL 444. Conductor shall also conform to solid annealed copper wire in accordance with ASTM B 3. The section "Dimensions and Permissible Variations" of ASTM B 3 shall be waived.
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3.2
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Conductor Insulation
Each copper conductor shall be insulated 100% with fluorinated ethylene propylene (FEP) polymer. There shall be no splices of the insulated conductor.
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3.3
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Pair Assembly
Cable shall consist of 4 insulated conductor pairs. The pair twist length shall be selected by the manufacturer to assure compliance with the transmission requirements of section 6.0.
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3.4
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Outer Jacket
The core, consisting of 4 insulated conductor pairs, shall be protected with an overall thermoplastic covering generally referred to as an "outer jacket." The jacketing material selected by the manufacturer must meet and maintain the physical, mechanical and electrical requirements of ASTM D 4565 and this specification for the expected life of the cable. (Note: When a limited combustible cable is preferred, FEP may be specified as the jacketing material.)
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3.5
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Color Codes
The color code shall be as shown in Table 3.5.
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Table 3.5
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Color Codes for Horizontal 100 ohm UTP Cable
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Conductor Identification
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Color Code
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Abbreviation
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Pair 1
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White-Blue (NOTE 1)
Blue (NOTE 2)
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W-BL
BL
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Pair 2
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White-Orange (NOTE 1)
Orange (NOTE 2)
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W-O
O
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Pair 3
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White-Green (NOTE 1)
Green (NOTE 2)
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W-G
G
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Pair 4
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White-Brown (NOTE 1)
Brown (NOTE 2)
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W-BR
BR
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Note 1: The conductor insulation is white, and a colored marking is added for identification. For cables with tightly twisted pairs (all less than 38.1 mm [1.5 in.] per twist) the mate conductor may serve as the marking for the white conductor.
Note 2: A white marking is optional.
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3.6
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Cable Marking and Identification
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The cable jacket shall be legibly marked at least every 24 in. by surface printing. The following information shall be provided:
--Manufacturer's Identification
--Type of Cable Construction
--UL or ETL Verification
--CMP Identification Code
--Cable Footage Marker
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4.0 Mechanical
4.1
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Conductor Elongation
Minimum elongation of conductors from a finished cable shall be in accordance with ICEA S-90-661.
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4.2
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Cable Breaking Strength
Finished cable shall have a minimum breaking strength of 400 N (90 lbf) measured in accordance with ASTM D 4565.
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4.3
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Cable Bend Radius
Finished cable shall withstand a bend radius of 25.4 mm (1 in.) at a temperature of -20°C±1°C without jacket or insulation cracking when tested in accordance with ASTM D 4565.
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5.0 Fire Performance
5.1
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National Electrical Code--NFPA 70A
The finished cable shall be plenum - rated in accordance with the requirements of National Electrical Code NEC Article 800, UL 444, NFPA 262 (UL 910) and applicable CSA standards.
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5.2
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Potential Heat Requirement for Limited - Combustible Materials
The insulation material used on the wire pairs in the cable shall conform with the requirement of the NFPA 90A Standard that limited - combustible materials be used in products installed in building plenums. Limited combustible is measured according to NFPA 259 utilizing the maximum limits for potential heat of 3,500 Btu/lb (8.141 mJ/kg) per NFPA 90A. (Note: When a limited combustible cable is preferred, FEP may be specified as the jacketing material. See Section 3.4)
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6.0 Transmission
Transmission requirements shall conform to all applicable sections of ANSI / TIA / EIA 568A Category 5 and ISO / IEC 11801 Class D except where exceeded by the requirements of sections 6.1 to 6.6, inclusive.
6.1
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Capacitance Unbalance: Pair to Ground
The capacitance unbalance to ground at 1 kHz of any pair, measured in accordance with ASTM D 4566, shall not exceed 200 pF per 100 m (328 ft.) at or corrected to a temperature of 20°C.
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6.2
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Input Impedance
Finished cable shall have an input impedance of 100 ohms ±15 ohms in the frequency range from 1-100 MHz, and 100 ohms ±22 ohms in the frequency range from 100-200 MHz when measured in accordance with ASTM D 4566-94, 43.2 Method 2, Option 2.
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6.3
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Attenuation to Cross Talk Ratio (ACR)
ACR shall meet the requirements of Table 6.3.
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Table 6.3
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Horizontal UTP Cable ACR
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Equal to or greater than 10 dB at 155 MHz (90 meter worst pair)
Equal to or greater than 0 dB at 200 MHz (90 meter worst pair)
Equal to or greater than 10 dB at 150 MHz (100 meter power sum)
Equal to or greater than 0 dB at 165 MHz (100 meter power sum)
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6.4
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Propagation Delay
The propagation delay of any pair at 100 Mhz shall not exceed 5.7 ns/m.
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6.5
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Propagation Delay Skew
The propagation delay of any pair at 100 Mhz shall not exceed 25 ns at 100 m when measured in accordance with ASTM D 4566 at -20°C to 60°C.
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6.6
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Longitudinal Conversion Loss
The minimum longitudinal conversion loss shall be 43 dB at 64 kHz when measured in accordance with EN50173.
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7.0 Reference Documentation
Copies of referenced standards may be obtained from the following sources:
American National Standards Institute (ANSI)
11 W 42nd St.
13th Floor
New York, NY 10036
Tel. (212) 642-4900
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ISO / IEC 11801
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Generic Cabling for Customer Premises
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American Society for Testing and Materials (ASTM)
100 Barr Harbor Drive
West Conshohocken, PA 19428-2959
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ASTM B 3-90
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Soft or Annealed Copper Wire
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ASTM 4565
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Cold Bend Test
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ASTM D 4566-94
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Standard Test Methods for Electrical Performance Properties of Insulations and Jackets for Telecommunications Wire & Cable
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ASTM 4565
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Physical and Environmental Properties of Insulation and Jackets for Telecommunications Wire & Cable
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Anixter, Inc.
Worldwide Headquarters
4711 Golf Rd.
Skokie, IL 60076
Tel. (847) 677-2600
Purchase Specification No. 0005-09
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Insulated Cable Engineers Association
P.O. Box 440
South Yarmouth, MA
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ANSI / ICEA S-90-661-1994
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Communications Wire and Cable for Wiring Premises
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International Standards Organization (ISO)
International Electrotechnical Commission (IEC)
3 Rue de Varambé
P.O. Box 131
1211 Geneva, Switzerland
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ISO/IEC 11801
and EN50173
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Interconnection of Information Technology Equipment Generic Cabling for Customer Premises
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National Fire Protection Association (NFPA)
Batterymarch Park
Quincey, MA 02269
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ANSI / NFPA 70-1996
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National Electrical Code (NEC)
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NFPA 90A
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Standard for the Installation of Air Conditioning and Ventilating Systems - 1996 Edition
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Telecommunications Industries Association (TIA)
2500 Wilson Blvd., Suite 300
Arlington, VA
Tel. (703) 907-7700
Fax (703) 907-7727
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ANSI / TIA / EIA 568A
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Commercial Building Telecommunications Cabling Standard
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Underwriters Laboratories, Inc.
333 Pfingsten Road
Northbrook, IL 60062
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UL 910
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Fire Safety Test
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UL 444
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Standard for Communications Cable
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