Nortel Networks 400 4.0, BCM200 manual Replacing the clock/calendar battery, To install a Dimm card

318Chapter 24 Replacing data cards and processing hardware

To install a DIMM card

Note: There must be at least one DIMM installed in the BCM main unit for the system to function.

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.

1Position and correctly align the new DIMM (edge connectors first) into the connector.

Note: The DIMM has two notches on the edge connector. Position the DIMM so that one of the notches is on the side of the slot nearest to the BCM cards.

2Carefully and firmly press down on the top of the DIMM card with your thumbs. At the same time, use your index fingers to move the fastening tabs inward toward the card. When the card is completely inserted in the connector, the fastening tabs clip to the side of the DIMM card.

Note: Do not force the DIMM into its slot. If the DIMM does not slide in easily, check the alignment of the DIMM.

3Install the media services card (see “To install the media services card (MSC)” on page 306).

4Partially install the base function tray in the main unit.

5Install the WAN card (if applicable). See “Installing the WAN card” on page 302.

6Connect the DS30 connectors to the MSC.

7Completely install the base function tray in the main unit (see “To install the base function tray” on page 236). Ensure you do not pinch or damage any cables.

8Install the base function tray bezel. See “To install the base function tray bezel” on page 238.

9Insert all connectors in the correct locations on the base function tray face.

10Restore the BCM system to operation. Refer to “Restarting the system after maintenance” on page 232 for details.

Replacing the clock/calendar battery

This section describes how to remove and install the clock/calendar battery located on the main card. This section provides the following procedures:

•“To remove the clock/calendar battery” on page 319

•“To install a new clock/calendar battery” on page 321

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