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