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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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Now In: Leviton → Leviton OSC10-M0W Multi-Technology Self-Adjusting Ceiling Mount Occupancy Sensor
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The most advanced sensor available. Combines multi-technology with all-digital architecture. Eliminates false triggering. The result is a trouble-free,
"install and forget" solution for lighting control.
Occupancy sensors have two tasks: keeping the lights on while the room is
occupied and, conversely keeping the lights off when unoccupied. Ultrasonic
(doppler shift) motion detection gives maximum sensitivity yet can be
vulnerable to false triggering from air conditioning currents, corridor
activity and movement of inanimate objects. Infrared motion sensing gives
immunity to false triggering, but lacks sensitivity at greater distances.
Leviton multi-technology sensors combine the benefits of both infrared and
ultrasonic technologies for unrivaled performance and reliability.
Features
- Self-adjusting Settings: Callbacks for adjustment are eliminated. Time delay settings are continually adjusted.
- Non-Volatile Memory: Learned and adjusted settings saved in protected memory. Power outages will not cause status loss.
- Wide Coverage: Select the approximate area needed. Units from 500 to 2000 sq. ft. available.
- Ambient Light Recognition: The photocell prevents lights from turning on when the room is adequately lit by natural light
- Small Size: The spherical-section shape makes the installation almost invisible.
- Accurate, Consistent Switching: Occupant complaints are eliminated; lights are on when room is occupied, off when empty. Annoying false-offs are
minimized and lights on at night is eliminated.
- Fast, Simple Installation: A single mounting post and three color-coded wires make installation easy.
- Photocell: 20-3,000 Lux adjustable. Factory set 3,000 L (photocell disable)
- Timer Settings: Automatic and Manual - 30s to 30 min. Test mode - 6 sec.
Price: $157.29
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