CHAPTER 2.
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2.3.1.3 LCP
The Local Control Processor (LCP) is the minor control board that interworks the MP20,
which is the main control part of the basic cabinet, with the expansion cabinet.
The LCP controls a variety of line boards and sends/receives information to/from the MP20.
Front View of LCP
The front view of the LCP is shown in the figure below:
Figure 2.5 Front View of the LCP
The components on the front panel of the LCP have the functions below:
Table 2.9 Ports and LEDs of the LCP
Ports, LEDs
Functions
LINK1~3
Ports that connect the MP20 with the LCP.
SIO
UART port (for tests).
RST
Button for resetting the LCP board.
RUN LED
This LED indicates the status of the LCP.
- Off: Power is not connected.
- On: Booting.
- Blinking: Program in operation.
MP20 LED
This LED indicates the status of signaling message processing.
- O
ff: There’s no message exchange between MP20 and LCP.
- On: Messages are being sent/received to/from the MP20.
RST
LINK1
LINK2
LCP
LINK3
SIO
MP20
RUN