Block Connector (for N.C. Circuits) (490-0504A) Installation Faxback Doc. # 17088 1. Decide the appropriate position for the block connector to be mounted on the window. When using the two-side foam tape, make sure the mounting surface is completely free of dirt, dust, or grease, before applying the tape. Use a cleaner suitable for the mounting surface. 2. Loosen or unscrew the two screws and attach the foil. 3. While the two screws are still loosened, connect wires to each of the two screws and then connect the other end of the two wires to the N.C. Input of the Alarm System. 4. Tighten the two screws.