Resistance Cord

Patch Cords and Why you Need Them

Devices of different types, such as a switch connected to a computer, or switch to router are connected with patch cords. A patch cord (sometimes patch cable or patch cord) is an electrical or optical cable, used to connect ("patch-in") one electronic or optical device to another for signal routing.

Patch cables and patch cords are flexible cables that are terminated at both ends with a plug and used to interconnect circuits. These male/male cables and cords are used with patch panels, groups of ports that connect lines between communications and electronic devices. Patch cords are usually produced in many different colors so as to be easily distinguishable, and are relatively short, perhaps no longer than two meters.

There are many types of patch cables and patch cords. Choices include Cat 3, Cat 5, Cat 6, coaxial, triaxial and twisted pair and even more commonly known products such as microphone cables and headphone extension cables.

Patch cords are often made of coaxial cables, with a positive or "hot" signal carried through a shielded core, and the negative electrical ground or earthed return connection carried through a wire mesh surrounding the core. Each end of the cable is attached to a connector, so the cord may be plugged in. Types of connectors may vary widely, particularly with adapting cables. Patch cords can be as short as 3 inches or 8 cm, to connect stacked components, or route signals through a patch bay, or as much as twenty feet or 6 m or more in length for snake cables. As length increases, cables are usually thicker, and/or made with more shielding, to prevent signal loss and the introduction of unwanted radio frequencies and hum (electromagnetic interference).

Patch cords may be:

• single-conductor wires using, for example, banana connectors

• coaxial cables using BNC connectors

• Ethernet Cat5, Cat5e, or Cat6 cables using "RJ-45" connectors with TIA/EIA-568-A or TIA/EIA-568-B wiring

• Optical fiber cables

An infamous type of optical fiber cables that are labeled under patch cords are Fiber Optic Patch cords. These fiber optic patch cords are more and more used to transmit telecommunication signals than traditionally copper patch cords in the network. Compared with traditional copper patch cords, fiber optic patch cords features higher operation speed -up to 10 gigabit, broader bandwidth, which means it is with a larger capacity of carrying the signals, longer transmitting distance, better to the environment- no noise, no radios, and easier to maintain them.

Usually the fiber optic patch cord structure is like this: fiber glass in the center with cladding on it, this is called the "core”, around the core people put some other different materials to make the cables with different features, for example, more tension-resistant, waterproof, etc. the most outside layer which is called "jacket" of the cable usually is made of PVC, and there are different standards, for example, riser, plenum, ofnr, ofnp, etc. the most commonly used cables for making fiber patch cords are with 0.9mm outer diameter, or 3mm outer diameter, or 2mm outer diameter. 2mm outer diameter is the most commonly used in North America; they look smarter although they operate the same as 2mm and 0.9mm ones.

Typical types are simplex fiber optic patch cord and duplex fiber optic patch cord, a simplex patch cord means this patch cord is made of a single fiber cable, a duplex patch cord can be regarded as two simplex ones put side by side.

About the Author

Sam Inci is a technical writer on
Patch Cords and Fiber Optic Patch Cord for Liberty Electronics Inc.

Firm Resistance Cord Heavy $14.98 The Firm Resistance Cord is designed to provide resistance training to your regular workout routines. The cord is made of durable nylon and features padded handles with a comfortable grip and includes a 30-minute workout program hosted by Tina Smalley . This program shows you how to integrate stretching, strengthening and cardio conditioning into productive workouts. Weighing less than a pound, this compact and portable kit goes anywhere and is a great addition to your home gym. This kit is available in light, medium and heavy resistance levels so you can tailor your workouts to your individual fitness needs. (DVD/CORD) approx. 30 mins.

Firm Resistance Cord Light $14.98 The Firm Resistance Cord is designed to provide resistance training to your regular workout routines. The cord is made of durable nylon and features padded handles with a comfortable grip and includes a 30-minute workout program hosted by Tina Smalley . This program shows you how to integrate stretching, strengthening and cardio conditioning into productive workouts. Weighing less than a pound, this compact and portable kit goes anywhere and is a great addition to your home gym. This kit is available in light, medium and heavy resistance levels so you can tailor your workouts to your individual fitness needs. (DVD/CORD) approx. 30 mins.

Firm Resistance Cord Medium $14.98 The Firm Resistance Cord is designed to provide resistance training to your regular workout routines. The cord is made of durable nylon and features padded handles with a comfortable grip and includes a 30-minute workout program hosted by Tina Smalley . This program shows you how to integrate stretching, strengthening and cardio conditioning into productive workouts. Weighing less than a pound, this compact and portable kit goes anywhere and is a great addition to your home gym. This kit is available in light, medium and heavy resistance levels so you can tailor your workouts to your individual fitness needs. (DVD/CORD) approx. 30 mins.

Reebok Braided Light-Resistance Cord $19.99 This light-resistance cord helps you sculpt, tone and strengthen your body. The included DVD helps you get the most out of your workout.

Reebok Braided Heavy-Resistance Cord $19.99 Sculpt, tone and strengthen your body with this heavy-resistance cord. The included DVD helps you get the most out of your workout.

Reebok Braided Medium-Resistance Cord $19.99 This medium-resistance cord provides a total-body workout by helping you sculpt, tone and strengthen your body. The included DVD helps you get the most out of your workout.

Resistance Cords $14.04 Isolate targeted muscle groups and get a full range of motion during your exercise with this Resistance Cord by TKO. Soft foam grip handles and progressive resistance make this cord comfortable and effective. Bonus door attachment included. Available in 5 colors which vary according to weight resistance.

Stamina AeroPilates Single Power Cord for Extra Resistance $15.04 Your Stamina® AeroPilates reformer is easily upgraded to add resistance to your AeroPilates workout. This cord adds 40% more resistance than the original cords included with your Stamina Pilates reformer.

Gaiam Covered Light-Resistance Cord with Workout DVD $14.99 Sculpt, tone and strengthen your body with this light-resistance cord and 3-part workout DVD that guides you through easy techniques for a total-body workout.

Gaiam Covered Medium-Resistance Cord with Workout DVD $14.99 This total-body workout features a medium-resistance cord and 3-part workout DVD that guides you through easy techniques to sculpt, tone and strengthen your body.

Stamina AeroPilates Double Power Cord for Extra Resistance $24 Stamina AeroPilates Double Power Cord for Extra Resistance 05-0102Your Stamina AeroPilates reformer is easily upgraded to add resistance to your strength training goals. Each cord (two included) adds 40% more resistance than the original cords that came with your Stamina AeroPilates reformer.Replacing the cord on your reformer is easy and instructions are included. .color:Red

Resistance Tether $59.43 Develop maximum strength and power for running and change of direction. Keeps resistance around the hips or torso. Harness (sold separately) attaches to 10' long nylon web cord with handle. Includes nylon web cord and a 3" wide Velcro® fastened belt adjustable to 42" waist, carry bag and instructions. The Resistance Tether also accommodates an optional shoulder harness for an upper body workout. For the PowerMax Shoulder Harness click here. Please Note: This item CANNOT ship to P.O. Boxes, APO, or FPO Addresses. It CAN ONLY ship to a Street Address.

Circuit Resistance Training for Persons with Spinal Cord Injuries (DVD) $44.73 Circuit Resistance Training for Persons with Spinal Cord Injuries reviews how exercise— specifically, resistance training—can be employed to enhance the lifestyle of individuals living with spinal cord injuries. Unfortunately, many of the traditional upper-body exercise modalities for individuals with spinal cord injuries have serious limitations involving placing Undue stress on the user’s shoulders. The DVD features a series of resistance exercises that can be performed in circuit fashion and combined with low-resistance, arm ergometry exercises to collectively minimize the demands placed on the user’s shoulders. Among the topics covered: The challenges facing individuals with spinal cord injuries, the spinal cord injury-related deficits and function-limiting adaptations that occur, secondary disabilities suffered by individuals with spinal cord injuries, health risks of persons with spinal cord injuries, limitations of traditional upper-body exercise modalities, and circuit resistance training. Produced in cooperation with the National Strength and Conditioning Association.

Light Weight Exercise Stretch Resistance Cord from TKO Sports $19.95 Progressive resistanceIsolation of targeted muscle groupsUpper body workoutsFull range of motion exerciseSoft foam grip handlesGreat for travelIncludes bonus door attachmentLength: 55�Resistance: 9 lbs.To view the other resistance options available for this exercise cord please click here.

Heavy Weight Exercise Stretch Resistance Cord from TKO Sports $19.95 Progressive resistanceIsolation of targeted muscle groupsUpper body workoutsFull range of motion exerciseSoft foam grip handlesGreat for travelIncludes bonus door attachmentLength: 55�Resistance: 11 lbs.To view the other resistance options available for this exercise cord please click here.

The Resistance $7.49 The Resistance

Resistance $11.49 Resistance

Extra Light Double Cord Resistance Band (Yellow) $40.64 PLEASE NOTE: THIS ITEM CANNOT SHIP VIA 3-DAY DELIVERY. Simulate exercises performed on cable weight machines Two 36" tubes for a full range of motion in a limited area Tubes are connected with a 10 1/2" nylon anchor strap that attaches to a doorjamb or other fixed object, or a partner can hold it

Light Double Cord Resistance Band (Green) $42.2 PLEASE NOTE: THIS ITEM CANNOT SHIP VIA 3-DAY DELIVERY.Simulate exercises performed on cable weight machines. Two 36" tubes for a full range of motion in a limited area. Tubes are connected with a 10 1/2" nylon anchor strap that attaches to a doorjamb or other fixed object, or a partner can hold it.

Heavy Double Cord Resistance Band (Blue) $45.33 PLEASE NOTE: THIS ITEM CANNOT SHIP VIA 3-DAY DELIVERY.Simulate exercises performed on cable weight machines. Two 36" tubes for a full range of motion in a limited area. Tubes are connected with a 10 1/2" nylon anchor strap that attaches to a doorjamb or other fixed object, or a partner can hold it.

Medium Double Cord Resistance Band (Red) $43.76 PLEASE NOTE: THIS ITEM CANNOT SHIP VIA 3-DAY DELIVERY.Simulate exercises performed on cable weight machines. Two 36" tubes for a full range of motion in a limited area. Tubes are connected with a 10 1/2" nylon anchor strap that attaches to a doorjamb or other fixed object, or a partner can hold it.

Ultra Heavy Double Cord Resistance Band (Black) $44.42 PLEASE NOTE: THIS ITEM CANNOT SHIP VIA 3-DAY DELIVERY.Simulate exercises performed on cable weight machines. Two 36" tubes for a full range of motion in a limited area. Tubes are connected with a 10 1/2" nylon anchor strap that attaches to a doorjamb or other fixed object, or a partner can hold it.

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