Since 1972
Protection Doesn't Cost ... It Pays ! . .. Ancient Abyssinian Proverb
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Since 1972
Protection Doesn't Cost ... It Pays !
. .. Ancient
Abyssinian Proverb
Power Line induced Spike / Surge /
Transient damage Lightning & Weather induced Spike /
Surge damage Power Line caused Spikes, Noise &
Interference Weather related Noise & Interference
disruptions
Performance S--l--o--w D--o--w--n due to any of aboveWeather / Lightning caused phone line Problems are biggest offenders in Summer
AC Power caused phone line Problems are likely offenders in Winter
Note that: .... phone line problems DO occur any time of year
Electronic Specialists Modem & Phone line protection for all
applications
Save $$$
Faster Down load
Prevent Down Time Extend Equipment Life
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Many folks think damaging spikes, transients & surges or disruptive interference can only enter sensitive high tech equipment through the AC Power Lines.
That ain't necessarily so! This segment we'll take a look at modems, both phone-line and cable connected. Fax and phone line connected equipment protection is linked to everything presented here.
Phone-line connected modems
Phone lines rank right after AC power lines as sources for equipment damage and disruption. Phone lines extend across the countryside just as power lines, so the potential for surge and interference pickup exists. Indeed, usually phone lines are carried on power company poles and travel in parallel for many miles.
I know - I hear it all the time
Why worry? Modems only cost 40 - 50 bucks! Why spend $50 to $100 protecting a $40 / 50 investment?
Here's why.
For one thing, your modem is your lifeline to the internet. When it's down, your entire internet operation is down! When personnel down time, lost business opportunities and repair costs are considered - a damaged modem costs many times more than the $40 / 50 hardware cost.
Secondly. Your modem is a back door gateway to your system. Damaging spikes and surges entering the modem have been known to be passed through to the system, inflicting additional damage. More $$ down the drain!
OK. So maybe a few surges can enter via the phone line. Sounds like that's about it.
Not quite! Various interference sources continuously impinge on phone lines, sometimes causing modem slow-down; other times completely disrupting communications. An overhead lightning storm can wreck havoc with modem transmission.
Phone line interference originates from lightning storms and spherics, radio, TV, police and cell phone transmitters. Electrical machinery sources and power lines in proximity to phone lines contribute to noise pick up. Note that this interference can be induced on phone lines over long wires, or locally within your building. For instance, a local air conditioner could cause severe RF radiation that finds its way into your modem, resulting in slow down and disruption.
Both damaging surges and disrupting interference exist on phone lines in common mode (both lines to ground) and differential mode (line to line) orientation, and should be addressed when choosing a modem phone line protection system.
I have DSL - I don't need to worry.
DSL Service is brought into your premises via copper from a local phone central office. Copper can run hundreds to several thousand feet between the central office and your facility. I have found that cable - whether video, audio, satellite, network or DSL - often picks up significant spikes and interference over lengths as little as 50 to 100 feet. If your internet connection is important to you, it is prudent to provide suitable protection on your DSL connection.
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Please recommend this Application Note to an Associate
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Free Standing / Flange Mount Protectors Interference
Control Filters |
Multi-Circuit <>
Multiple Channel Protection Systems
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Free Standing Modem / Phone Line Protecters ... Models & Prices
Relay Rack Panel Mount Modem/Phone Suppressers ... Models & Prices
Wire-in Hard-wired Modem / Phone line Protection Systems
Turbo Max Hard-wired Protector |
Wire-in Hard-wired Modem /
Phone Protection Available: |
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Another Specialized Modem/Phone Protection System from Electronic Specialists
PDS-21 Protection for Phone Line bundles |
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STORM WARNING !!
Surges, Spikes and Interference
Damage
play no Favorites ! !
Studies Show ...................
Winter Storms Cause More
Wild Power, phone line outages, surges,
spikes and interference
than Summer Storms
On the other hand, There are more Summer Storms
Winter Storm Spherics cause up to 50% as much damage as
Summer Lightning Storms
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Ferroresonant Voltage
Regulators Precision Variac Voltage Regulators ....... Stepper Motor Voltage Regulators |
Modem
Speed-up & Telecommunications Protection Systems RJ-11, RJ11, RJ-21, RJ21, RJ-45, RJ45 Screw Terminals <> Wire-In <> DSL |
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|
Voltage
Regulation extends UPS operating Voltage Range
|
Software Books .... Technical, Computer |
Networks,
Data Line , Controller Protection RS-232, RS232, RS-422, RS422, RS-485, RS485 DB-9, DB9, DB-15, DB15, DB-25, DB25, Wire-in RJ-11, RJ11, RJ-45, RJ45, 10Base-T, 100Base-T Automation, Instrumentation Protectors |
| AC Power
Protection ...... Discussion & Over View |
Multiple
circuit Relay Rack Mount Modem / Phone / Telco Protection |
Networks, Data Line, Controller Banks Relay Rack Mount--Multiple Line Systems Process Control and Automation |
|
AC Power Line
Protection 220-250 Volts ...... Commercial ... Industrial and .. Laboratory & Basic Grades NEMA 6-15, 615, 6-20, 620 |
Direct Plug
AC Power Protection with built in Modem Protector
Dual Function
- Direct Plug AC Power |
Dual Function
- Direct Plug AC Power and Network Protectors |
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AC Power Line
Protection <> 120 Volts ...... Commercial ... Industrial and .. Laboratory Grades International too ! NEMA 5-15, 515, 5-20, 520, 6-15, 615, 6-20, 620 |
Phone System
Protection and Interference Control Modular plugs, sockets RJ-11, RJ11, RJ-21, RJ21, RJ-45, RJ45 |
Audio-Video
System Protection Cameras, Monitors, Displays, Amplifiers 50 / 75 ohm, RG-6, RG6, RG-58, RG58, RG-59 RG59, RG-62, RG62, RCA, PL-259, BNC, UHF |
| Wire-in AC Power Line Filter-Suppressors Wire Leads <> Screw Terminals Solder Lugs <> Push-on Tabs Retrofit and OEM applications |
DIN
RAIL Mount Modem - Phone Line Protectors NetWorks Protectors RJ-11, RJ11, RJ-21, RJ21, RJ-45, RJ45 DB-9, DB9, DB-15, DB15, DB-25, DB25 Screw Terminals <> Wire-In |
Video <> Monitors & Displays
<> Surveillance Video Interference Choke |
| Extreme Duty Motor and Controller Suppressors single phase <> 2-phase <> 3-phase |
Twist-Lock® * Filter-Suppressors for NEMA L5-15, L5-20, L5-30, L515, L520, L530 L6-15, L6-20, L6-30, L615, L620, L630 L10-, L11-, L14-, L15-, 15, 20, 30 * Twist-Lock is a registered trademark of Hubbell Incorporated |
Relay Rack
Mount, Multiple Circuit Video Protectors |
| Variable
Voltage ....... Regulators ....... Isolation Transformers ....... Variacs ....... 400 Hz Variacs |
Industrial
& Copier Hi-Current Filter-Suppressors AC Hi Power Protection NEMA 14-20, 1420, 14-30, 1430, 14-50, 1450 |
Cable
Modem <> Speed-up, Isolation & Protection System |
| Ground Loop
Control ...... Voltage Regulators ...... Isolation Transformers ...... Cable TV / Cable Modem Isolators |
Application
Notes ...... Dozens of Practical Money Saving Tips |
Cable
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| Isolation Devices ....... Transformers ....... Isolators-Filters |
Pneumatic
Interrupters * Power Shutdown Pressure <> Vacuum Switches |
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<> Security Monitors / Displays / Video Protectors |
| New ! ! AC Power Line Interrupters
Power Shut Down |
Power
Transformers ...... Regulators ...... Isolation ...... Autotransformer |
Power
Conditioners ...... Regulators ...... Isolation Transformers |
| New ! ! AC Power Line ,,,,, Voltage Converters ,..., Voltage Converter Regulators ..... Voltage Converter Plug Adapter Strips ..... Universal AC Plug Adapters |
Travel Adapters .... Phone RJ-11 Adapters .... AC Power Plug Adapter Strips .... AC Power Plug Adapters |
Lap
Tops ..... Laptop Phone Line Protector ..... Laptop AC Power Protector |
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