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PL - AT - DR1F


 PL-AT-DR1F
Features, Test plan, Test steps, packing list



Notes

  • 802.3at compatible
  • 802.3af works if the LED is < 12 watts - no automatic load reduction if AT not sensed
  • 802.3at mode ok for LED with < 23 watts
  • 12 volt opto isolated "on" input ( otherwise off )
  • 300 mW Keep Alive ( static)
  • uses TI  TPS2378 - known 802.3at issues with few switches
  • uses White 25 watt case
  • RJ45 female in with LEDs, Mode A active, Mode B passthru
  • RJ45 female out with Mode A active passthru from B input
  • RJ45 has Opto Input for ON
  • Dip Switch for operation from 300 mA ( all off) to 1100 mA ( all on)
  • Note: LED Vf needs to be known when the current is set
Test Procedure
  • Locate an 802.3at switch
  • Locate a LED with max 1440 mA and 18 volts, 13 watts ( for example wire two 9v  660 mA LEDs in parallel, and 2 sets in series the result is 1320 mA and 18 volts), use a KF 2 pin connector
  • Locate a 12v power supply
  • make a cable with RJ45 pin 4 = -12v and pin 5 = +12v
  • Locate an ethernet cable
  • Locate a PoE tester

  1. Connect the LED to the bare board using the KF connector
  2. Set all DIP switches ON
  3. Connect the Ethernet cable from the 802.3at switch to the input side ( just one connector)
  4. observe that both LEDs on the RJ45 connector light up ( AT and PoE) active
  5. observe that the device stays connected (PoE active), and LED is NOT on
  6. insert RJ45 with 12v on the output side
  7. Observe that the LED is on fully, write down the wattage from the PoE tester
  8. Set all DIP switches Off
  9. write down the wattage from the PoE tester
  10. remove the 12 volt RJ45
  11. observe LED off
  12. apply date code QA sticker ( small )
  13. done
Packing List
  1. no White plastic case required ( customer has already)
  2. Male KF connector ( 250 units) required to ship with the PCBA
  3. 250 pcs of the PL-AT-DR1F individually in the pink foam from PCBCart
  4. 1000 screws for the white cases



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