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 TM 55-1925-273-10-1
0007 00
24. Global Maritime Distress and Safety System (GMDSS) suite (figure 1, item 24). The GMDSS suite provides emer-
gency and distress communication between the Large Tug (LT), other vessels, and shore stations.
25. 120V radar power distribution panel (figure 1, item 25). The 120V radar power distribution panel provides circuit
breakers for the X band and S band radars.
26. Uninterrupted Power Supply (UPS) bypass and disconnect switch box. (figure 1, item 26). The UPS bypass and
disconnect switch box permits bypassing or disconnection of the UPSs for the Command, Control, Communications,
Computers, Intelligence, Surveillance, and Reconnaissance (C4ISR) gear.
27. Radar distribution panel isolation transformer (figure 1, item 27). The radar distribution panel isolation transformer
protects the radar gear from electrical anomalies.
28. 24V general alarm battery charger (figure 1, item 28). The 24V general alarm battery charger maintains the charge for
the general alarm battery bank.
29. 24V GMDSS battery charger (figure 1, item 29). The 24V GMDSS battery charger maintains the charge for the
GMDSS battery bank.
30. GMDSS disconnect switch (figure 1, item 30). The GMDSS disconnect switch secures power to the 24V GMDSS
battery charger.
31. 12V marine radio battery charger (figure 1, item 31). The 12V marine radio battery charger maintains the charge for the
12V marine radio battery.
32. 12V disconnect switch (figure 1, item 32). The 12V disconnect switch secures power to the 12V marine radio battery
charger.
33. Gyrocompass control unit (figure 1, item 33). The gyrocompass control unit provides controls for the gyrocompass.
34. Gyrocompass (figure 1, item 34). The gyrocompass provides accurate directional data to pilothouse personnel and to
key navigational gear.
35. Integrated Bridge System (IBS) UPS units (figure 1, item 35). The IBS UPS units provided uninterrupted power to the
IBS gear.
36. Backup ECDIS display (figure 1, item 36). The backup ECDIS display provides a second ECDIS work station.
37. Survival radios (figure 1, item 37). Three survival radios are provided to enable the life rafts to communicate with
search and rescue personnel.
38. First aid kit (figure 1, item 38). The first aid kit provides emergency medical supplies.
39. Port searchlight control station (figure 1, item 39). The port searchlight control station provides controls for the port
searchlight.
40. Fire pump START/STOP panel (figure 1, item 40). The fire pump START/STOP panel permits pilothouse personnel to
START and STOP the fire and general service pumps.
41. Alarm panel (figure 1, item 41). The alarm panel notifies pilothouse personnel of flooding and of power interruption to
key battery chargers.
42. 21 MC intercom (figure 1, item 42). The 21 MC intercom provides internal communication between stations located
throughout the vessel.
43. Rudder angle indicator (figure 1, item 43). The rudder angle indicator displays the angle and direction of the rudders.
0007 00-3
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