yes you can do that or you can spend 8 bux and buy a second cable with 2 connectors on it .. I'm guessing you have a compac or similar they cheap out and use one connector cables to save 10 or 20 cents per unit I have seen it in a few of their models when installing burners in them for friends. by the way the connector on the far end is for the device set as master and the center one for the slaved device
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