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Help & Info
TIA568 Wiring Standards
How to decide which wiring pattern to use:
1. Does the job specification call out a wiring pattern?
2. Does the customer/end user have a preference for T568A or T568B?
3. Have patch panels already been purchased for the job? If so, they will probably be either T568A or T568B. The jacks should be wired to the same pattern as the panels.
4. Are you adding on to an existing wiring plant? If so, your new wiring should match the existing wiring.
If none of the factors above apply, either T568A or T568B may be used. It is important to ensure that the workstation connectors and the patch panels are wired to the same pattern. T568B is commonly used in commercial installations, while T568A is prevalent in residential installations.
Click Here for a Full-Color Acrobat pdf file ( 697k ) - Right click to save it to disk.
For a more complete selection of products (no online ordering available at that site), visit the original Lashen Electronics website located at http://www.lashen.com.
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High-quality auto transformer series provides the advantages of excellent frequency response, low insertion loss and reliable performance for volume control application in 25 and 70.7-volt systems. Attenuation is accomplished in ten make before break steps plus positive off position. (No stop between maximum and off position to prevent switch damage). Contacts are silver plated for noise-free operation. Features a removable terminal block. Includes stainless steel plate, with stamped and filled or screen printed dial scale and a skirted black knob. (White and ivory plastic plates with matching skirted knobs also available in Decora style-see AT model description chart.)
Features
- 10 attenuation steps with positive off
- Mount into Most 1-Gang E.O. Boxes.
- UL Listed
- Wall Plates are Stainless Steel with Stamped and Filled Dial Scale, and a Skirted Black Knob
Specifications
| Height: |
4-1/2"(11.43 cm) |
| Width: |
2-3/4" (6.99 cm) |
| Depth: |
2-1/8" (5.40 cm) |
| Shipping Weight: |
1.00 lbs (0.45 kg) |
| Plate Size: |
1 gang |
| Plate Type: |
Stainless Steel |
| Power Rating: |
35W |
| Total Attenuation: |
27 dB |
| UL Listed/Standard: |
813, 2043 |
Price: $18.75
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