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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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Loop Verifier
Designed specifically for the security and alarm industry, the Model PE620 offers convenience, ease of use and true performance. As a continuity tester, Model PE620 can be connected to a Normally Open or Normally Closed loop pair and provides a distinct audible tone when the alarm condition occurs. The latching feature provides a simple method for identifying intermittent failures (swingers) and confirming operation of switches at remote locations. In the latching mode, the Model PE620 will catch the alarm condition and continue until the tester is reset.
Technical Specifications
| Power requirements: |
one 9V battery |
| Battery Life: |
>100 hours tone, >1.5 hours audible signal |
| Tone Output: |
+3dBm into 600Ω |
| Continuity: |
N.O.
ON: < 50kΩ OFF: > 80kΩ
N.C.
ON: > 120Ω OFF: < 80kΩ |
| Latch Sensitivity: |
any occurrence > 100mS |
| Construction: |
high impact ABS plastic |
| Dimensions: |
4.25 x 2.25 x 0.875" |
| Weight: |
5.5 oz. with battery |
Price: $65.77
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