NOTE if the LED flashes alternate colours then both conditions exist Cowley Road, Blyth Riverside Business Park, Blyth, Northumberland, NE24 5TF Tel: 01670 352371 Fax: 01670 362807 Email: sales@tynetec.co.uk Website: www.tynetec.co.uk Tynetec Model No. ZFT320/ZFT321 FM0436 ISSUE A...
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INTRODUCTION DOOR OPEN INDICATION Your Advent xt telephone is used to answer calls from visitors using the buildings door When the building entrance door is open the LED indicator will illuminate green entry system. The pushbutton has two functions; on ALL telephones simultaneously - when the door is closed all will extinguish. 1.
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