ADH Communications just joined Manta.

ADH Communications becomes the manufactures representative for YR20 for the SouthEast.

ADH Communications becomes an authorized reseller for SonicWall.

ADH Communications just joined the Chamber of Commerce of Gwinnett County!

ADH Communications has projects going on in 7 different states!

I have worked with Hartmut and ADH on several occasions. “The ADH goal of providing one with the best technology yet cost effective solutions shows their concern for their customers”
-Tim O’Neill  - The “Oldcommguy™”
B.T. Solutions, Inc.

A leading supplier for converged networks

Provides the best possible solution at the best possible price

Is a partner to our customers

Helps with all your needs to design, install and maintain your mission critical networks

Providing, Installing & Supporting
-Wired and wireless networks
-Triple play networks infrastructure
-High speed back-bone networks
-Industrial Ethernet production control networks
-And more

PO Box 443
Lake Geneva, WI 53147


or simply fill out the form on the contact page.

ADH Communications Manta Profile


Fiber Optics

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Numbers


Half-duplex Transmission: A bidirectional link that is limited to one-way transfer of data, i.e., data cannot be sent both ways at the same time. Also referred to as simplex transmission.

Full-duplex and Half-duplex Transmission

Hard-clad Silica Fiber: An optical fiber having a silica core and a hard polymeric plastic cladding intimately bounded to the core.
HBT: Abbreviation for heterojunction bipolar transistors. A very high performance transistor structure built using more than one semiconductor material. Used in high performance wireless telecommunications circuits such as those used in digital cell phone handsets and high-bandwidth fiber optic systems.
HBT Construction
HDSL: Abbreviation for high data-rate digital subscriber line. A DSL operating at a high data rate compared to the data rates specified for ISDN.
HDTV: Abbreviation for high-definition television. Television that has approximately twice the horizontal and twice the vertical emitted resolution specified by the NTSC standard.
Headend: 1) A central control device required within some LAN and MAN systems to provide such centralized functions as remodulation, retiming, message accountability, contention control, diagnostic control, and access to a gateway. 2) A central control device within CATV systems to provide such centralized functions as remodulation (illustrated). See also local area network (LAN).
Hero Experiments: Experiments performed in a laboratory environment to test the limits of a given technology.
Hertz (Hz): One cycle per second.
HFC (Hybrid Fiber Coax): A transmission system or cable construction (illustrated) that incorporates both fiber optic transmission components and copper coax transmission components.
Hybrid Fiber Coax
HFC Network: A telecommunication technology in which optical fiber and coaxial cable are used in different sections of the network to carry broadband content. The network allows a CATV company to install fiber from the cable headend to serve nodes located close to business and homes, and then from these fiber nodes, use coaxial cable to individual businesses and homes.
Typical Hybrid Fiber Coax Network


HIPPI: Abbreviation for high performance parallel interface as defined by the ANSI X3T9.3 document, a standard technology for physically connecting devices at short distances and high speeds. Primarily to connect supercomputers and to provide high-speed backbones for local area networks (LANs).
Hot Swap: In an electronic device subassembly or component, the act or process of removing and replacing the subassembly or component without first powering down the device.
HP: Abbreviation for homes passed. Homes that could easily and inexpensively be connected to a cable network because the feeder cable is nearby.
Hydrogen Losses: Increases in fiber connector attenuation that occur when hydrogen diffuses into the glass matrix and absorbs some light.


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Numbers

Copyright © 2010 by David R. Goff. Used by permission. All rights reserved.