NEC VANGARD i-Series Quick Setup Manual page 22

Installing the Voice Mail Hardware
Increasing the Number of Voice Mail Ports
14 VANGARD Mail/i-Series Quick Setup Guide
2. Use a screwdriver to loosen the six screws that secure the cover to the cabinet. See Figure 9.
Figure 9: Removing the Cabinet Cover
3. Remove the cabinet cover.
4. If you have an existing VANGARD Mail with analog port cards, you must remove them
before you install any digital cards.
If you are installing a card in slot 2, remove the screw from the bracket (if present), and
remove the bracket from the standoff (see the illustration below).
Figure 10: Removing the Bracket from the Standoff
Chapter 2: Installing the Voice Mail