User's Manual

6-10
6.3.2 Maintenance Units
Maintenance units for repair are followings.
No. Unit Name Model Note
1 AIS Transponder NTE-183-2 Transponder
(CAV-2180 is unattached.)
2 VHF Antenna CAV-2180 Whip antenna
3 IFU CQD-2983 Circuit board for NCM-983
4 PSU CBD-2983 Circuit board for NCM-983
5 DPU CDJ-2983 Circuit board for NCM-983
6 CONNECTION BOX NQE-5183
7 NSK UNIT NSK UNIT
8 Power Supply unit NBD-577C Power supply unit
9 Spare parts 7ZXJD0136 Fuse
6.3.3 Spare parts for periodic maintenance
Spare parts for periodic maintenance are followings.
No. Unit Name Code Decline period Note
1. LCD Unit CCN-423 50,000 hours 6years in continuous operation
2. VHF Antenna CAV-2180 About 5 years Whip antenna