2.3 Information about the Main Processing Card
2.3.1 MPR Card
Function
Contains
the main
processor for all processes, basic shelf main protocol, time switch (TSW) control, detection
of system clock alarm, basic shelf power down alarm, and watchdog timer overflow. An MEC card and an
RMT card can be mounted on the MPR card (refer to "2.3.2 MEC Card (KX-TDA0105)" and "2.3.3 RMT Card
(KX-TDA0196)").
LEDs
Reset Button
SD Memory Card
Slot Cover
System Initialise
Switch
USB
BGM/MOH
Pager
SD
CARD
2
SD
CARD
4
5
SD
CARD
SD
Memory
Card
3
WARNING
A lithium battery is used in the MPR card. There is a risk of explosion if the battery is replaced with
the incorrect type. Dispose of used batteries according to the manufacturer's instructions.
CAUTION
• The SD Memory
Card contains software for all the processes of the PBX and all the customer data. It
can be easily removed and taken away from the PBX by a third party. Therefore, do not allow
unauthorised access to prevent data leakage.
• Do not remove the SD Memory Card while power is supplied to the PBX. Doing so may cause the PBX
to fail to start when you try to restart the system.
• To prevent data leakage, render the SD Memory Card physically unusable before disposal.
74 Installation Manual
2.3.1 MPR Card
