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How to look for smd bidirectional/antiparallel smd led in farnell?

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Hi all

Basic question:
I would like to get a bicolor smd led (green/red) but i would like it to have just two pins, as i need it to check polarity thus i do not need to turn both leds at once.

Is there a more specific name to look for it in farnell as i can only find 3 or 4 pins versions that complicate assembly?

Regards
 

Use a led with 4 pin.Short the opposit pins(one's anode with others cathode). Then you will have only 2 pins to connect and by applying voltage with different polarity you will be able to select any one led to turn on.(not both of them with the same time).
 
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i am using more than data acquisition system with Ethernet interface.How can i synchronous these system. Explain the method with NTP protocol
 

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