CHAPTER 2.
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Front View of MP20
The front view of the MP20 is shown in the figure below:
Figure 2.3 Front View of the MP20
The components on the front panel of the MP20 have the functions below:
Table 2.5 Ports and LEDs of the MP20
Ports, LEDs
Functions
LINK1~3
Ports that connect the MP20 with the LCP.
MISC1~2
Ports that connect external music sources, paging device, loud bell, common
bell, or door bell.
LAN
Port for establishing the 10/100 BASE-T Ethernet connection.
SIO
UART port (for tests).
Media Card
Port for installing the NAND-type flash memory.
RUN LED
This LED indicates the status of the MP20.
- Off: Power is not connected.
- On (Green): Booting.
- Blink (Green): The Program is operating properly.
- Blink (Red): Fan module failed.
- Blink (orange): Reset button is pushed.
- ON (orange): Flash Memory (Data base) clear
LAN LED
This LED indicates the status of the connection to LAN.
- Off: MP20 is not connected to LAN.
- On: MP20 is connected LAN.
- Blink: MP20 is transmitting or receiving Data through LAN port.
MC LED
This LED indicates the status of the Smart Media/Media Card access.
- Off: The SD Card is not installed.
- On: The SD Card is installed, however is not accessed.
- Blink: The SD Card is installed and is being accessed.
LCP LED
This LED indicates the status of signaling message processing.
-
Off: There’s no message exchange between MP20 and LCP.
- On: Messages are being sent/received to/from the LCP.
RST
Button for resetting the MP20 board.
Button for Data base clear when pushed more than 7second.
Media Card
RST
MC LCP
RUN LAN
LINK1
LINK2
LINK3
MISC1
MISC2
LAN
SIO
MP20
