Samsung OfficeServ 7100 Installation Manual page 28

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OfficeServ 7100 INSTALLATION
TECHNICAL MANUAL PART 3 MAY 2010
The 4SWM (optional 4 port POE LAN module) or 4DLM (optional 4 port Digital Line module)
daughtercards can be mounted to connector P11, P12 and P13 of the MP10/MP10a card. A
screw is installed to the support located next to connector P13. Remove this screw, install the
daughtercard and install the screw to secure the card as shown below.
4SWM
or
4DLM
Figure 3.4 Mounting a 4SWM or 4DLM on the MP10/MP10a Card
A small battery is added to the MP10a card that is called the RTC (real-time clock). The
purpose of the battery is to maintain the time, date and day of week information in memory
during system powered off conditions. This insures that the time and date in the display
keyset is always up to date even after powering off or rebooting.
RTC Battery
Figure 3.4a Real Time Clock Battery (RTC)
3.7