COMM/DATA PROTECTION GUIDE - Tii Network Technologies

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3 <strong>Network</strong> Protection Sophisticated Equipment Demands Sophisticated Protection • An unprotected or insufficiently protected communications network is a hazard to both your employee’s safety and your bottom line. • When a communications line is protected by Porta Systems products, hazards are quickly and safely shorted to ground. HAZARDS TO YOUR NETWORK Lightning: By far the most common cause of electrical surge damage to the communications network is lightning. Lightning can enter your network in a number of ways. It might strike a telephone or power line, causing high voltage to enter the equipment through incoming lines, or it might strike the ground and travel along buried cables. Power Crosses: Power crosses refer to incidents where a communications line comes in physical contact with an electrical power line. This could be caused by a downed telephone pole where phone and electrical lines have crossed. These incidents cause excessive AC current conditions to be carried into the communications system. Power Faults: Power faults should not to be confused with power crosses. In most buildings, the power company’s neutral line is bonded to the telephone company’s cable. If current is introduced onto this neutral line by any means, it can be transferred to the communications line and into the equipment. Induction: Communications lines need not come in direct physical contact with lightning or power overloads for a voltage spike or surge to be introduced on a line. These hazards can be induced from nearby sources such as the magnetic field surrounding a power line. Furthermore, when a brown out occurs, the power surge that accompanies the return to normal service can be transferred to nearby communications lines. Electrostatic Discharge: Most people have experienced the effects of electrostatic discharge in the home by simply walking across a carpet, touching a metal object and receiving a small shock. Similar type of shocks can be transmitted to communications circuits through the build-up and discharge of energy in dry climates. REGISTERED TO ISO 9001:2000
Response of Various Transient Protectors Gas Discharge Tube (GDT) • A robust balanced three-electrode design. • Automatically resets after current surges of up to 10,000 Amps and high voltages. • Attractive for protecting high-speed carrier lines, such as T1, due to Ultra Low Capacitance. Solid State (S.S.) • Solid State thyristor based design. • Tighter voltage range which results in lower over-shoot voltage. • Quick transient response time. • Automatically resets after current surges of up to 100 Amps. Delta (GDT/TVS) • A robust balanced three-electrode GDT coordinated with Transient Voltage Suppressor (TVS) diodes. • Tighter voltage range which results in lower over-shoot voltage. • Quick transient response time. • Automatically resets after current surges of up to 20,000 Amps and high voltages. ) V ( s t l o V 500 400 300 200 100 Nanosecond = Billionth of a Second Actual waveshapes recorded by Tektronix TDS520 Oscilloscope Response of Overvoltage Protector 230V Gas Tube (GDT) 10KV/uSec (1KV pulse) 230V Solid State (S.S.) 230V Delta- (GDT/Solid State) Over-Shoot Voltage 230V Nominal 0 0 100 200 300 400 500 600 700 800 900 1000 Response Time Time (NanoSeconds) 4
Page 1 and 2: COMM/DATA PROTECTION GUIDE Lightnin
Page 3: GENERAL APPLICATION PROTECTOR PACKS
Page 7 and 8: Primary Protection Modules Over 400
Page 9 and 10: Primary Protection Modules DELTA Pr
Page 11 and 12: The Most Comprehensive Line of UL L
Page 13 and 14: CUSTOMIZED CONFIGURATIONS AVAILABLE
Page 15 and 16: CUSTOMIZED CONFIGURATIONS AVAILABLE
Page 17 and 18: STANDARD STUB LENGTH — 25 FT. FOR
Page 19 and 20: C A T E G O R Y 6 P R O T E C T I O
Page 21 and 22: General Application Protector Packs
Page 23 and 24: G E N E R A L A P P L I C A T I O N
Page 25 and 26: D I S T R I B U T I O N F R A M E E
Page 27 and 28: P399 100-Protector Block (cont'd) C
Page 29 and 30: 8.56" 8.56 4.69 HIGH PAIR COUNT PRO
Page 31 and 32: Pair Count 100 50 25 COMPETITOR PRO

COMM/DATA PROTECTION GUIDE - Tii Network Technologies

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