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Since 1972
Protection Doesn't Cost ... It Pays ! . .. Ancient Abyssinian Proverb

Modems Telecommunications Electronic Phones Industrial Electronics 

Network Video Internet   Surveillance  
RJ-21 / RJ21 / RJ-45 / RJ45 / RJ-11 / RJ11

Multi-Circuit <> Multiple Protection System Banks Transient Suppressors Lightning Arrestors Surge Suppressers Interference Control Engineering Sketches of 2 Multi-Circuit Modem/Phone Protection Models Models can be configured with rj-11 (1, 2 or 3 lines) and rj-45 (1, 2, 3 or 4 lines) Modem Protection can be designed for regular phone (POTS) , T1, DSL, or ISDN service NEW !! ... Screw Terminal - - Wire-in protection   ... Leased Line or Dedicated Line Protection ... Modem / Power Protection - dual function

Free Standing  Modem / Phone Protection Systems
for Relay Rack Mount units See Table below
for RJ-11 (rj11) modular jack, single line  service
RJ-45 (rj45) modular jack designs available

Go to ...... Order Desk

Relay Rack Panel Mount Modem/Phone Protection Systems
for RJ-11 (rj11) modular jack, single line  service
RJ-45 (rj45) modular jack designs available

Go to ...... Order Desk

Wire-in Hard-wired Modem / Phone line Protection Systems

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Need More Protected Lines ??  Contact Factory

Go to ...... Order Desk

Another Specialized Modem/Phone Protection System from Electronic Specialists

MODELS AVAILABLE
PDS-21 (Photo above) - Male/Female connector on cable
PDS-21X (Not shown) - Male/Female connector attached to case
Both Models are Dual Stage Protection Systems

Above Model #'s & Pricing assume a phone line is configured on opposite pins;
ie. pins 1 & 26 are a phone line; 2 & 27 are a 2nd line; down to 25 & 50 are 25th line

At time of purchase, active pins must be specified
Assume purchase of PDS-21X/4 (line 1; line 2; line 3; line 4)
Assume lines connected to pins 1 & 26; 3 & 28; 5 & 30 and 25 & 50
Model # would be: PDS-21X/4 (1/26; 3/28; 5/30; 25/50)

Go to ...... Order Desk

Modem v. Power Protection

Model MVP-31

Now ... we have combined the best to bring you ... Modem v. Power Protection .... ideal for Home Office Computer / Modem protection Fax Machine protection Industrial Telemetry monitor Commercial Phone Poll systems High Profile Suppressor Protection Convenient - Plugs directly into Wall Electrical Socket Power - 58,500 Surge Amp; 1 pico-second response Modem/Phone - 3-stage hi-current, 1 pico-second suppressor Model MVP-31 ................................... U.S. $ 96 Free ! - RJ-11 connection cable Model MVP-32 (2 AC Sockets).............. U.S. $ 110 Free ! - RJ-11 connection cable Go to ....... ORDER DESK

LEASED LINE PROTECTORS

We have received numerous requests for Dedicated or Leased Line phone service Protection
Our Relay Rack Mount, Wire-In or PDS-21  modem / phone line protection systems
are available for Leased Line service protection
Simply add (LL) after Model; ie: PDS-21(LL)
No additional charge

Contact Electronic Specialists with your special design protection needs

e-mail esp@elect-spec.com <> Toll Free (U.S.) 800-225-4876 <> Fax 508-653-0268 

Suggest This Page to a Colleague <> Click Here

?? Answers to Hundreds of Hi-Tech Equipment Protection Questions - Click Here

View a recent copy of our Newsletter

Other Popular Pages on this site: Check Them Out ! !
LapTop <> Travel <> Modem/Phone <> Automation

Check Our Performance Boosting PC Software Utilities

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

On the other hand, WHY SUFFER ANY STORM DAMAGE ?

Now is the Best Time to Protect YOUR Valuable Equipment

Discover the Security offered by . . . . .
Electronic Specialists Professionally Engineered products for .....
. . . . your factory computerized production equipment and automated machinery
. . . . office computers, internet, network, intranet, communication and sound systems
. . . . your home computer, modem, phones and entertainment center

Visit our other great Equipment Protection Departments........
(Check the many categories in TABLE BELOW)
Discover High Performance protection solutions for your factory / office / home

Oh Yeah !  Don't forget to check out our FREE stuff

Ferroresonant Voltage Regulators Precision Variac Voltage Regulators ....... Stepper Motor Voltage Regulators ......Hi-Power Voltage Regulators	Dial Up Modem Speed-up & Telecommunications Protection Systems RJ-11, RJ11, RJ-21, RJ21, RJ-45, RJ45 Screw Terminals <>  Wire-In <> DSL	Cable Modems )x4d( Speed-up, Isolation, Intermittent Cable Sync & Protectors Systems
New! Regulator - Dual Voltage Voltage Regulation - extends UPS operating Voltage Range AC Power Protection   ...... Discussion & Over View	Software .... Engineering, Photography, Utilities Books .... Technical, Computer Ultra High Current Source Regulated High Current Source Ultra Hi Current Ammeter	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 Line Protection  220-250 Volts ...... Commercial ... Industrial and .. Laboratory & Basic Grades  NEMA  6-15, 615, 6-20, 620	Multiple circuit    Relay Rack Mount Modem / Phone / Telco Protection	Networks, Data Line, Controller Banks  Relay Rack Mount--Multiple Line Systems Process Control and Automation
Direct Plug AC Power Protection with built in Modem Protector	Dual Function - Direct Plug AC Power and Modem Protectors	Dual Function - Direct Plug AC Power and Network Protectors
AC Power Line Protection 120 Volts ...... Commercial ... Industrial, .. Laboratory & Basic Grades   International too ! NEMA 5-15, 515, 5-20, 520	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 Video Guard Hum Buckers
Wire-in AC Power Line Filter-Suppressor Wire Leads <> Screw Terminals Solder Lugs  <> Push-on Tabs Retrofit and OEM applications	DIN RAIL Mount Modem - Phone Line Protector NetWorks Protector  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 Video Guard Hum Buckers
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 Isolators Audio/Video Ground Loop Eliminator <> F-connector  <> BNC-Video Guard
Isolation Devices  ....... Transformers  ....... Isolators-Filters	Pneumatic Interrupters * Power Shutdown Pressure <> Vacuum Switches	Surveillance <> Security Monitors /  Displays / Video Protectors Video Guard Hum Buckers
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
Variable / Adjustable Transformers ....... Variacs ....... 3-Phase Variable Transformers ....... 400 Hz Variacs ....... 400 / 60 / 50Hz Variable Transformers ....... Stepper Motor Voltage Regulators	View Custom Design Transformers Ultra High Current Source Regulated High Current Source Ultra Hi Current Ammeter	Application Guide Cross Reference  - - Locate Your Problem   - - - - - Find a Fix !! We Now Offer Software Check 1,000's of Books Boost PC Performance !
Frequency Converters ...... Solid State <> to 5 KVA ...... Motor-Gen & Solid State .......... 5KVA to 500 KVA ....... Rotary Converters	Satellite .....Protection Systems             .....Power Supplies .....Industrial .....Commercial	Complete Subject and Product Listing
SureTest   Electrical Circuit Analyzer <> Harmonics  <> Ground Voltage & Noise <> Load Voltage Drop  <> Ground Impedance	Can't Find What You Need ? Look Here ! or Check our Search Engine Catalog Sheets - ........  Down Load Here	Why the Professionals buy Electronic Specialists Protection Products
Complete Subject and Product Listing	Free Tutorial - Equipment Protection	Complete Product index
Press Releases	Check Out - - - - Free Stuff	Product Application Notes
Check out complete Site Map	Learn What "Everybody " Knows - - - - or should Know ! !	Why you need Hi-Performance Protection
Save !! Surplus from Production	Electronic Specialists Home Page	About Electronic Specialists
Frequently Asked Questions <> with dozens of Answers		Check our Search Engine

Electronic Specialists regularly supplies Regulation, Suppression and Protection Products 
for 100, 110, 115, 117, 120, 125/250, 120/208, 220/380, 277/480 Volts 
single, dual and 3-phase systems

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($1,200 Value)
Industrial Electronics - - - - - -  Friend or Foe ??
We reveal why your Hi Tech Stuff sometimes becomes downright unfriendly --
and what you can do about it
Discover How to Get Maximum Performance from Your System

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<> Toll Free (U.S.)1-800-225-4876 120 Volt and 240 Volt Models

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