Specifications

Community Distributed Design Series Installation and Operation Manual Page 22
Installation of conduit to the back can
Required tools:
• One hammer and knockout punch tool
• One step-bit for adjusting knockout diameter
(optional)
• Safety glasses, gloves and other personal
safety gear are recommended as this process
involves striking metal parts and chipping away
debris around the knockouts.
1. All Distributed Design Series loudspeaker
back cans have dual-diameter knockout strain
relief ttings on each side. These ttings each
measure:
• 21/32" (17mm) to accommodate 3/4" (19 mm)
ttings
• 15/16" (24 mm) to accommodate 1"ttings
• Additionally, the top cover has a 3/4" (19 mm)
knock-out.
2. The knockout strain relief ports are opened
with a hammer and punch using the same
techniques for removing knockouts in standard
electrical boxes. A step-bit can be used to modify
the diameter of the hole to accommodate larger
conduit sizes.
3. Insert appropriate ttings and tighten
sufcientlyforwirepathconcealmentandstrain
relief, in accordance with applicable codes.
4. You can use exible or rigid conduit (if
permitted by local electrical codes).
Figure 22. Conduit for protected wiring to can
Conduit tted to one side of the can (an
additional knockout strain relief on the
opposite side of the can allows the connection
wiring to be carried through to subsequent
cans)
Conduit tted to the top cover plate of the
can, which has a knockout strain relief for this
purpose
When you use conduit to bring wires to the
side port(s) of the back can, you can loosen the
screws in the green plug to remove the factory-
installed wires from the internal terminal block
jumpers (see Figure 22), then insert wires from
the conduit(s) and tighten the screws. In any
case, the rest of the wiring details are the same
as shown in Figure 21.
Figure 23. Redeploying the plug for wires
entering from conduit
(Loosen clamping screws to remove wires)