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3.0 Before You Begin
3.3
Preparing wires
70V and 100V versions
The loudspeaker terminals will
accept either stripped wires or
crimp-on forked connectors.
Note: Using forked connectors for
multiple wires is not acceptable in
fire protective signaling and
warning systems due to the lack
of electrical supervision capability.
Prepare the wires as shown (Figure 3).
•
For bare wire connections, strip the wires to
•
For crimp-on connectors, strip the wires to
barrel connectors. Uninsulated terminals can short circuit to the cover. Before
crimping, make sure the wire is fully inserted into the connector with no
uninsulated wire exposed.
4 version
5
Strip the wires to
/
" (8 mm).
16
Note: Stranded wire is preferred.
DO NOT solder (tin) the wires.
3.4
Junction box
fittings
70V version
The junction box has a
hole.
Select and install a UL listed
size wire fitting (Figure 4).
Note: To meet local electric codes,
fittings for
3
/
" or
1
/
" flexible metallic
8
2
tubing or flexible metallic conduit may
have to be used.
100V version
Both a plastic strain relief bushing and
a plastic bushing are supplied. Use
whichever is appropriate.
4 version
A plastic bushing is already installed.
Note: If local code requires flexible metallic tubing or flexible metallic conduit, be
sure it is well supported. Too much unsupported tubing or conduit can weigh the
loudspeaker down, pushing it away from the ceiling surface.
8
7
/
" diameter
8
1
/
" trade
2
AM177915_03_V.pdf • May 6, 2002
3
7
/
" –
/
" (9 – 10 mm).
8
16
5
/
" (8 mm). Use only insulated
16
Figure 3
Figure 4