Grounding Error Cat5 Cable
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How To Ground Shielded Ethernet Cable
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How To Test Cat5 Cable Without Tester
DIY & Professional Forum Home Forums > Electrical Forum discussion & Blog > grounding outdoor ethernet cables Discussion in 'Electrical Forum discussion & Blog' started by tandavad, Jan 17, 2012.
Ethernet Grounding Block
tandavad New Member Joined: Jan 16, 2012 Location: California I have a shielded, outdoor ethernet cable running between two rural buildings. The Cat5 cable is shielded with a metallic sheath and has a drain line running through it to both ends for grounding purposes. I bought two L-Comm weatherproof lightning surge protectors and installed one at each end of how to test cat5 cable with multimeter the 250' cable. There are two shorter Cat5 cables connected to the lightning protectors which go on into each building. There are also grounding wires going from each lightning surge protector to a grounding rod located at each building. The system worked fine for about six months, then became erratic, and finally stopped working. After testing to see where the signal was interrupted, I came to the conclusion that the cable was defective and replaced it with a new one which, frustratingly, did not work either. After a lot more testing, I finally isolated the problem somewhat more specifically. If I disconnect the grounding wires from both lightning protectors, the signal goes right through from a router in one building to a computer in the other building. If I reconnect either one of the grounding wires the line is dead at the far end. I got conflicting advice about whether to ground both protectors (the issue being ground loops), but the company told me to ground both of them as they were 250' apart. Technical support
Remember me Forgot Your Password? close NECCode Basics Q&A Quizzes Violations What's Wrong Here? DesignComputers & Software Green Building Lighting & how to ground cat6 shielded cable Control Ops & MaintenanceEnergy Efficiency Metering & Monitoring Motors Test & cat5 drain wire Measurement ContractorBusiness Management Estimating Low Voltage & Communications NECA Show Coverage Project Spotlight Technology & Tools cat5 surge protectors SafetyAccidents & Investigations Arc Flash Fire & Security Shock & Electrocution Power QualityMonitoring & Measurement Sags & Swells & Interruptions TrainingWorkplace Learning Center Events Webcasts BasicsBonding http://terrylove.com/forums/index.php?threads/grounding-outdoor-ethernet-cables.45364/ & Grounding ProductsProduct of the Day Product of the Week Product of the Year Sponsored Products Advertisement Home > CEE News Archive > What you should know about testing Category 5 cabling What you should know about testing Category 5 cabling Dec 1, 1997 Joseph R. Knisley, Contributing Editor | CEE News EMAIL http://ecmweb.com/cee-news-archive/what-you-should-know-about-testing-category-5-cabling Tweet Comments 1 Understanding the use of Cat 5 cabling and how to test its performance are two important aspects in telecommunications today. Category 5 unshielded twisted pair (UTP) is constructed of four pairs of 24 AWG copper conductors with thermoplastic (insulated conductors enclosed by a thermoplastic jacket).Telecom consultants recommend that Category 5 UTP cabling carry both voice and data in a building's Advertisement Advertisement Understanding the use of Cat 5 cabling and how to test its performance are two important aspects in telecommunications today. Category 5 unshielded twisted pair (UTP) is constructed of four pairs of 24 AWG copper conductors with thermoplastic (insulated conductors enclosed by a thermoplastic jacket). Telecom consultants recommend that Category 5 UTP cabling carry both voice and data in a building's structured wiring system. This way, the circuits can be reconfigured to accommodate all future needs while also providing the ultimate in circuit allocation flexibility. Many users have been following this advice.
Index Speed Feed Mobile App Index Magazine Back Issues Magazine App Events Subscribe Advertise Editorial Contact Us RSS Archives Site Map Blog Jobs DATA CENTER HIGH SPEED CABLING POWER AND COOLING STANDARDS CABLING STANDARDS NETWORK PROTOCOLS CABLE COPPER FIBER CONNECTIVITY RJ45 UTP & http://www.cablinginstall.com/articles/print/volume-4/issue-9/contents/special-report/ground-potentials-and-damage-to-lan-equipment.html SHIELDED FIBER OPTIC SECURITY & AV WIRELESS DESIGN INSTALL CABLING DESIGN CABLING INSTALLATION TEST http://www.bb-elec.com/Learning-Center/All-White-Papers/Ethernet/Cat5e-Cable-Wiring-Schemes.aspx Editorial Guides Video Webcast Whitepapers Magazine Buyers Guide Subscribe Home Topic Index Speed Feed Mobile App Index Magazine Back Issues Magazine App Events Subscribe Advertise Editorial Contact Us RSS Archives Site Map Blog Jobs DATA CENTER HIGH SPEED CABLING POWER AND COOLING STANDARDS CABLING STANDARDS NETWORK PROTOCOLS CABLE COPPER FIBER CONNECTIVITY RJ45 UTP & SHIELDED FIBER how to OPTIC SECURITY & AV WIRELESS DESIGN INSTALL CABLING DESIGN CABLING INSTALLATION TEST Home Network Cable Ground potentials and damage to LAN equipment Ground potentials and damage to LAN equipment September 1, 1996 To protect network equipment from damage, surge suppressors should be installed at network ports, or isolators can be used to break the copper path that carries the surge current.Kevin P. Kanakos, Peradata Technology Corp.Many companies turn to local area networks how to ground (LANs) as a means of automating their data processing operations. Network data cables encompass entire buildings and also span buildings and campuses. LANs have become an interconnection of computers, building power systems, telephone, data acquisition, and video and security systems.As LANs become larger, LAN equipment becomes more vulnerable to damage from voltage surges that appear on network cables. The reason for this vulnerability is that LAN data cables also interconnect the grounding systems of what are, in some cases, separate electrical power systems. A ground potential difference occurs when ground in one part of a building is at a different voltage than ground in the rest of the building or in a neighboring building. Data errors often occur when a ground potential difference exists between network devices. The results are more dramatic when network cables span buildings.[Native Advertisement]With advances in LAN technology, many companies have shifted critical operations and data to file servers on a network. LAN managers have learned the hard way how fragile and vulnerable their networks can be to AC power dropouts, voltage fluctuations (brownouts) and AC power surges. As a result, the need for uninterruptible power supplies (UPSs) and AC power surge protection has become well-accepted.Aside from the AC power plug, all LAN devices have one other common connection--
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