Nortel Networks BCM1000 manual Replacing the clock/calendar battery

Chapter 19 Replacing data cards and processing hardware 225

7Slide the new DIMM, edge connectors first, into the slot.

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 Business Communications Manager cards.

8Carefully push the DIMM down until the fastening tabs clip to the side of the DIMM.

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

9Replace any boards or cables that you removed to insert the memory chips.

10Replace the cover.

11Restore the unit to operation. Refer to “Restarting the system” on page 170 for details.

Replacing the clock/calendar battery

The clock/calendar battery supplies the power required to keep the BIOS information current if there is a power failure. Figure 132 provides an overview of the process of replacing this component.

Warning: You must replace the battery with a CR2032, 3v Maxell coin cell battery.

Do not use any other manufacturer because this may invalidate the safety approval of the BCM1000 hardware and possibly cause a fire or explosion.

Figure 132 Process Map: Battery replacement overview

Do a software
shutdown
Set up unit for	Install
maintenance	new battery
	WARNING:
CAREFULLY	+ faces up
lift battery off	Restore unit to
motherboard
	operation

Danger: Disconnect the telephone cables and network cables and then the ac power before opening the computer. Read and follow installation instructions carefully.

Installation and Maintenance Guide