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Chapter 3: Installation & Startup
65-2662XL-04 M2A-XL Transmitter
12. Guide the other end of the two-conductor, shielded cable or two wires in conduit through the
bottom conduit hub of the M2A-XL junction box.
WARNING: If the top conduit hub is used for wiring, be sure to seal the threads to ensure
water does not enter the junction box. A conduit seal, which is normally
required to maintain the junction box’s hazardous location rating, will also
help to prevent water from entering through the top port.
13. To gain access to a plug-in terminal strip for wiring, pull it out of its socket by grasping the
wall between two terminal positions with needle nose pliers and pulling. Be careful not to
exert too much force on the wall to avoid damage to the terminal strip. The detector terminal
strip and the alarm 1 relay terminal strip may be removed by grasping them with your fingers
if the adjacent terminal strips have been removed.
14. Pull out the detector terminal strip and connect the two wires to the terminal strip as follows
(see Figure 8).
• Connect the wire corresponding to the detector’s red wire to the
TOXIC “+”
terminal.
• Connect the wire corresponding to the detector’s black wire to the
TOXIC “-”
terminal.
CAUTION:
If shielded cable is used, leave the cable shield’s drain wire
disconnected and insulated at the detector junction box. You will
connect the opposite end of the cable’s drain wire to the M2A-XL
junction box’s chassis (earth) ground.
