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I have got a Galaxy Dimension 520 and i am trying to connect a CO79-2 rf portal to my panel (line2) have got a keypad connected to line 1. The red LED is on a slow flash (bad communication) on the CO79-2 pcb. Have tried all combinations for connections with no success. the main board has a line expansion board fitted. Have i missed something in setting up or is the RF unit faulty (ebay) although new and boxed. Any advice



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You try it one line 0?

Or 1 is what I mean aswell


Could be faulty from.ebay tho , remember you can hit not as described even if they don't take returns and you will get money back 

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