Nortel Networks 400 4.0 Installing the BCM200 cooling fan, To install a BCM200 cooling fan

Chapter 25 Replacing or installing a cooling fan 331

Installing the BCM200 cooling fan

Use this procedure to install a cooling fan in a BCM200 main unit.

Warning: Protect the hardware components against damage from electrostatic discharge. Always wear a grounded wrist strap before you handle components. Always place the components in a static-free container.

To install a BCM200 cooling fan

1Place the new fan in proper location in the BCM200 main unit. Ensure the I/O card connector cable is on the bottom.

Note: Ensure the label of the new fan faces the back wall of the BCM main unit. Airflow is out of the chassis as indicated by the arrows imprinted on the fan.

2Align the fan chassis mounting holes with the holes on the main unit.

3Attach the fan to the main unit using four snap rivets:

a Hold the fan in place and push the rivet collar through the fan access panel and fan chassis mounting holes.

b Insert the rivet pin into the rivet collar (see Figure 186).

Figure 186 Insert the snap rivets into the BCM200 main unit

1	Insert the rivet collar into the	Fan exhaust
	fan access panel hole.

Main unit

Insert the rivet pin into the 2 rivet collar.

Rivet pin Rivet collar

4Connect the power supply cable to the I/O card. Connect the fan to connector #1 on the I/O card.

5Replace the main unit top cover. See “Installing the main unit top cover” on page 246.

6Restore the BCM system to operation. For details, refer to “Restarting the system after maintenance” on page 232.

The BCM system starts up when you connect the AC power cord. The start-up process takes several minutes to complete.

BCM200/400 4.0 Installation and Maintenance Guide