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Symptom
AIS information is not
displayed.
Cause
The communication is not set
correctly.
The power supply for the AIS
equipment is not turned on.
The AIS equipment does not perform
positioning.
The connection with the AIS
equipment is abnormal.
The power supply for the serial-LAN
interface circuit (CMH-2370) is not
turned on.
(Case where the AIS equipment is
connected to the serial-LAN interface
circuit)
The serial-LAN interface circuit
(CMH-2370) is faulty.
(Case where the AIS equipment is
connected to the serial-LAN interface
circuit)
The internal wiring is faulty.
The central control unit (NDC-1590E)
is faulty.
20-7
Action
Set the communication correctly.
Turn on the power supply for the AIS
equipment.
Check the state of the AIS
equipment.
Check the connection with the AIS
equipment.
When AIS equipment is connected to
the serial LAN interface circuit, check
if the LED of the corresponding port
is lit at data reception.
Turn on the power supply for the
serial-LAN interface circuit.
Make a request to the distributor for
repair.
Make a request to the distributor for
repair.
Make a request to the distributor for
repair.
Section 20 Failures and After-Sale Services
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