65-2670XL-XX-07 M2A-XL Transmitter
Chapter 3: Installation & Startup
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5. Gently pull until the control PCB is pulled away from the banana jacks. Take care not to pull
too hard and damage the cable which connects the control and terminal PCBs.
6. Let the control PCB hang by the cable. The terminal strips are now visible on the terminal
PCB. The control PCB may be left hanging while wiring is done. If desired, the control PCB
may be disconnected from the cable and set aside while wiring.
7. To maintain the M2A-XL junction box’s NEMA 4X environmental rating and prevent water
from entering the junction box through the conduit hubs, use appropriate construction
technique.
8. Guide a two-conductor, shielded cable or two wires in conduit through the top conduit hub of
the detector junction box.
To make wiring more convenient, use wire colors that correspond to the detector wire
colors: red and black.
9. Connect the wires to the terminal block in the detector junction box.
10. Secure the detector junction box’s cover to the junction box.
11. 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.
12. 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.
13. 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.
Max Distance to
M2A-XL w/18
Gauge Wire
Max Distance to
M2A-XL w/16
Gauge Wire
Max Distance to
M2A-XL w/14
Gauge Wire
500 ft.
1,000 ft.
2,000 ft.
