Samyung ENC SI-30A, Manual Instruction

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3-1-2 LED
There are 3 different LEDs depends on each function. TX LED in upper, RX LED in middle and
POWER LED at bottom.
Each function is as follows.
LED Function Remark
TX
This function is to indicate when MKD display transmits data
to transponder.
RED LED
RX
This function is to indicate when MKD display receives data
from transponder.
ORANGE LED
PWR
This function is to indicate when MKD display is being
powered on.
YELLOW LED
3-1-3 Buzzer
Buzzer function in MKD display gives “BEEP” signal from buzzer whenever each button in
MKD display is pressed, which enables user to operate the unit efficiently. It is also designed
to detect the alarm when it is activated as it gives alarm function to buzzer.
3-2 Basic Operation
3-2-1 Power ON/OFF
The unit will be operational within 2 minutes of switching on and transmit own ship’s static
data. These data are retransmitted every 6 minutes or when data has been changed and on
request. The static data provided by AIS includes IMO number. MMSI number, Call sign,
Length and width, Type of ship and Position of GPS antenna. Safety related information
should be reported on request.
SI-30A should be power on while navigation or at anchor. However, ship’s master may decide
power off when he judged that ship’s safety and security might be threatened due to
constant operation of AIS. SI-30A should be restarted when the cause of danger will be
safely eliminated.
After transponder and MKD powered on, SI-30A starts receiving data from other ships and
displays object data on LCD of MKD.