Establishing the number of microphones used in a system should not be determined by the size of the room but by the coverage area. This is the area where people will be located while participating in the conference. CTG microphones typically cover an area with a radius of 5 to 10 feet from the microphone location.
Typical Configurations – drawings show microphone and speaker locations
Small blade screw driver – often referred to in the industry as a “tweaker”
CTG Preset Switch (optional) – This switch (WP-02 available though CTG) connects to the Logic Input connector on the rear panel of the FS-03. The switch selects between two stored configurations. A momentary manual closure to ground (Pin 9) may also be used to switch among presets
General-CTG Microphones CTG microphones are true 360° Omni directional. They are electret condenser boundary microphones. The microphone itself should be flush mounted in a boundary of at least 12” in diameter. The element in the tabletop microphone (TM-01) is mounted in a base designed to acoustically couple to the table surface and provide an adequate boundary.
* Each microphone must connect directly to the FS-03 with a “homerun” connection. Recommended Microphone Cable
22 gauge single pair shielded (plenum rated) Belden® type 82761 or equivalent
Phantom voltage supplied to CTG microphones should be 2-20 Volts DC. Exceeding 20 Volts will damage the element. The FS-03 microphone channel inputs provide 12 volts DC
To avoid crosstalk, it is preferred microphone and speaker cable NOT be bundled or run together in the same conduit over long distances
Wiring for Microphones (CM-01, TM-01, TM-02) A connection module (MCM-101) is supplied with each microphone.
On the MCM-101 is a four position Phoenix Terminal Block.