Nortel Networks 1750 manual Warning Risk of electric shock, Caution Risk of equipment damage

58 Chapter 3 Option card and DIMM installation

Caution: Install the same type of DIMM that is installed in your gateway. For example, do not install a 256 MB DIMM in the VPN Router 1750.

Before you install or replace a DIMM, complete the following procedures:

•Shut down the VPN Router 1750 by using the Web GUI or the CLI, and then unplug it as described in “Shutting down the system to add or replace hardware” on page 48.

Warning: Risk of electric shock

Turn off the VPN Router 1750 and unplug it before you attempt to install

aDIMM.

•Remove the front bezel from the chassis, and then remove the chassis from the equipment rack. For more information, see “Removing the front bezel and top cover” on page 49.

•Remove the top cover from the chassis. For more information, see “Removing the front bezel and top cover” on page 49.

•Attach the antistatic wrist strap that ships with the VPN Router 1750. For more information, see “Attaching the antistatic wrist strap” on page 52.

Caution: Risk of equipment damage

Electrostatic discharge can damage VPN Router 1750 components.

To install or replace a DIMM, perform the following steps:

1If you need to replace a DIMM, remove the installed DIMM as follows: a Press down the locking lever on either side of the DIMM.

b Pull the DIMM up to remove it from the slot.

2Press down the locking lever on either side of the slot where you plan to install the new DIMM.

3Place the new or replacement DIMM in the slot.

Use the alignment keys to properly position the DIMM in the slot.

NN46110-316 03.01