Upgrading the Message Memory
To upgrade the message memory, perform the following steps:
1.
Move switch #1 to the “BATT” position to turn off the
internal battery.
2.
Unplug the power supply from the outlet.
3.
Unplug the power connection and the CMS or modular
cable connector from the rear panel.
4.
Remove the unit from the wall (if it is wall mounted).
5.
Remove the two screws from the front panel.
Figure 4-3. Location of Case Screws on the Front Panel
6.
Remove the front panel from the unit, press on the CMS
DIN connector on the rear panel to start moving the internal
circuit board, and pull out the internal circuit board
(Figure 4-4).
4-5
