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• Speaker – 18 gauge twisted pair (Belden
To comply with most building codes, wires that are running through air plenum space
™
must be Teflon
insulated unless they are enclosed in approved conduit. Every
microphone and speaker connects directly (homerun) to the SM-02. To avoid crosstalk,
do not run microphone and speaker cables through the same conduit.
Required Tools and Hardware
The following tools are recommended for the installation of the ceiling components:
• ½ inch drill bit – by simply twisting the bit through an acoustic tile, a perfect
hole will be made for the CM-01 ceiling microphone
• Hand saw – the ceiling speaker enclosure requires a 6 3/8-inch hole
• Wall snake – in most rooms, cables will need to be run down a wall and
terminated at the supplied wall plate
• Wire nuts – for ceiling speakers
• Electrical box – the supplied wall plate fastens to a single gang electrical box
• Small blade screw driver – often referred to in the industry as a "tweaker"
• Ladder
Microphone and Speaker Terminations
Microphone
Inside of the microphone you will find a four position terminal strip. Connections are:
Remove jumper if tile is foil backed
or microphone housing contacts
building ground or metallic conduit.
Page 7 of 29
®
type 82740 or equivalent)
Terminal 1
Terminal 2
Terminal 3
Terminal 4
2
1
3
4
Terminal strip inside CM-01 ceiling microphone
and table microphone junction box
Positive
Negative
Shield
No Connection
7
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