HEMP Digital Telephone/Data Filter Design Worksheet

IAW Mil-STD-188-125-1 & -2

* Denotes required field

Please enter your name Name *

Please enter an email address Please enter a valid email address Email address *

Preferred contact number

Please enter a company name Company *

Please enter maximum applied voltage Maximum Applied Voltage (Volts) *

Please enter maximum current Maximum Current (Amps) *

Please enter maximum current Maximum Data Rate (Bits per Second) *

Data Protocol, if Applicable (e.g. RS232, 10Base-T, 100Base-T, etc.)

NOTE: Attenuation (Stop Band) is dependant upon Data Rate. 100db of attenuation will be achieved at a frequency higher than the bandwidth required to pass Data undistorted. For example, to pass 64 kbits, a passband bandwidth of DC to 190Khz is required. 100db of attenuation will be reached at 1Mhz through 10Ghz.

Please enter number of filtered pairs Number of Filtered Pairs *

Please enter impedance of telephone pairs Impedance of Filtered Pairs (e.g. 100 Ω Line to Line) *

Please enter operating temperature range Required Operating Temperature Range (e.g. -55° to +85°C) *

Please enter where the filter is to be installed

Indoor (NEMA 1)

Outdoor (NEMA 4X)

Where is Filter to be Installed? *

Please enter case style

Wall Style

Cabinet Style With Legs

Cabinet Style Without Legs

Case Styles (Choose One) *

Wall Style 2 to 8 Wire Only

Cabinet Style

Any Special Electrical Requirements (e.g. Telephone Punch Block Connectors, Screw Terminals are Standard)

Any Special Mechanical Requirements (e.g. Threaded Conduit Hubs on Cabinet)

Attach any documentation that you require (total size must be less than 5MB and should be documents or images)

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