Factory Restore a Ceiling Microphone

You can restore a microphone to its default settings. This process refreshes the device by deleting its configurations except the current version of software.

Prerequisite

Factory restoring the ceiling microphone requires the following tools:
  • A small, thin block N45 magnet (for example, 76.2 mm [3 in.] × 12.7 mm [1/2 in.] × 3.18 mm [1/8 in.])
  • Yardstick or adjustable floor-to-ceiling pole (so you don’t have to use a ladder)
  • Duct tape

Procedure

  1. Tape the magnet to one end of the pole with one of the 3.18 mm (1/8 in.) edges facing up.
    CAUTION: If you have a suspended ceiling, tape the magnet securely to avoid it coming loose and sticking to a ceiling support grid.
  2. Ensure that the microphone is powered on.
  3. Locate the factory reset sensor.
    Looking at the bottom edge of the microphone connector along a longer side of the electronics enclosure, the sensor is approximately 63.5 mm (2.5 in.) towards the end opposite to the enclosure’s RJ-45 connector.

    Illustration shows that the factory restore sensor is located approximately 63.5 mm (2.5 in.) from the bottom edge of the microphone connector towards the end opposite to the enclosure’s RJ-45 connector.
    If you can’t see the RJ-45 connector, look for the small black button on the microphone cable. Facing that button at the 12 o’clock position, the sensor is located toward the 9 o’clock position.
  4. Line up the center of the magnet with the sensor and hold it no more than 19 mm (3/4 in.) away from the enclosure for approximately 7 seconds.

    Illustration shows you must line up the center of the magnet with where the sensor is located.
The microphone LED blinks amber during a factory restore.
Note: Don’t power off the microphone during this process. It restarts when complete.