Installation 2-15

g.Route the sensor cable through the rack.

h.Attach the cable to the rack with the stick-on cable retention clips or tie wraps included in the CMC basic unit.

i.Connect the cable to the sensor ￿.

1

Figure 2-13. Connecting the smoke sensor

Smoke Sensor Operation

NOTE: The smoke sensor is for use only with the CMC and is not suitable for connection to building fire alarm systems.

Smoke passing by the sampling tube will be drawn into the optical smoke sensor by the fan. The smoke sensor can take up to 20 seconds to trigger an alarm to the CMC. The sampling tube must be placed in the path of the exhaust air from the rack equipment.

If smoke is detected, the sensor fan will automatically shut off. After the smoke has cleared, the sensor can be reset by pressing the RESET button for three seconds.

The sensor will not detect smoke if the fan stops running or runs too slowly. A fan fault like this will also trigger a smoke alarm. A smoke alarm should be investigated to determine whether smoke is present or a fan fault occurred.