PTI Falcon Installation And Operation Manual page 22

door alarm system. Each building must have its own mux box. Buildings with a large
number of doors to alarm may have more than one mux box. Remember that although
the mux boxes may look identical on the outside, some boxes may contain expansion
boards and are configured to handle more doors than other boxes, so take care to
match the correct box to each building. Although the box enclosures are rainproof and
the boxes may be mounted outdoors, use indoor mounting if available. Above the
entrance door to a building with hallway access makes an ideal location.
(2) Mount each mux box by removing the door and sinking screws or bolts through the four
box mounting holes into the wall. Take care not to damage the circuit board during the
mounting process. If you must drill to mount the box, do not allow any metal fragments
to become lodged on the circuit board.
(3) Install the door to door
wiring cable and door
switches. Splice the door
switch wires into the
main cable as indicated
in Figure
Choose a different color
wire for one side of each
switch. Choose one wire
as the common wire to
the other side of all the
switches on the cable.
There are
possible cable routing schemes. You may decide to route one door to door cable from
the mux box, or several depending on the number of conductors in the cable used and
the box location within the building. Remember that the maximum number of switches
on one cable is equal to the number of conductors in the cable minus one. Telephone
cable is commonly available in twenty four conductor or fifty conductor. One size will
generally work better than the other depending on the number of doors and the mux
box location.
Mount the magnet on the door and the switch parallel to the magnet approximately one
inch away when the door is closed. Roll up style doors often require the use of a
mounting bracket for the switch. The magnet may be either bolted to the door using the
two mounting holes or glued using a panel adhesive.
14
Thirteen.
Figure Thirteen
several