Nortel Networks manual To connect the cables, To return the BCM50 system to operation

Chapter 24 Replacing an internal component 203

To connect the cables

1Rotate the power supply retention clip so that the power supply jack is clear.

2Connect the power supply cord to the main unit.

3Rotate the power supply retention clip to lock the power supply cord in place.

4If the system has a UPS, connect the USB cable to the USB port on the main unit.

5If the system uses the external Music Source port, connect the music source cable to the Music Source port on the main unit.

6Connect the expansion cables or LAN cables to the expansion ports on the main unit. For expansion cables, make sure you connect the cables to the expansion ports from which they were removed. This ensures the same line and extension numbering.

7If the main unit is a BCM50a or BCM50e, connect the Ethernet cable or ADSL line to the WAN port and the Ethernet cables to the Router card LAN ports.

Warning: Leakage currents

You must connect the power cord to a grounded outlet before connecting the telephony and data networking cables to the system.

8Connect the Ethernet cable to the LAN port.

9Connect the 25-pair cable to the RJ-21 telephony connector on the front of the main unit.

10Secure the RJ-21 connector to the main unit.

If you are using a straight RJ-21 connector, use the two screws on the sides of the connector to secure it.

If you are using a right-angle RJ-21 connector, use the screw on the left side of the connector to secure the left side of the connector. To secure the right side of the connector, use a cable tie to fasten the 25-pair cable to the anchor on the main unit.

11Continue to the next step, “To return the BCM50 system to operation”.

To return the BCM50 system to operation

1Check the Power and Status LEDs on the main unit. After the BCM50 has finished starting up, both LEDs should be lit solid and green. If either LED is not lit solid and green, there is a problem with the main unit. Refer to “System status LEDs” on page 59 for a detailed description of the LED states.

2If this system has a expansion unit, check the Power and Status LEDs on the media bay module (MBM) that is inserted in the expansion unit. Both LEDs should be lit solid and green. If either LED is not lit solid and green, there is a problem with the MBM or the expansion unit. Refer to “Media bay module LEDs (expansion units only)” on page 64 for a detailed description of the LED states.

3If this system has a second expansion unit, check the Power and Status LEDs on the second MBM.

BCM50 Installation and Maintenance Guide