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SYSTEM CONFIGURATIONS
xxvi
Category of units
Antenna units: Exposed to the weather
Other units: Protected from the weather
Notes
1. The gyrocompass must be type approved for compliance with IMO resolution A.424(XI) (and/
or resolution A.821(19) for installation on HSC). The gyrocompass must also have an update
rate that is adequate for the ship’s rate of turn. The update rate must be better than 40 Hz
(HSC) or 20 Hz (conventional vessel).
2. The EPFS must be type approved for compliance with IMO resolution MSC.96(72).
3. These monitors have been approved by the IMO, MU-190 for CAT 2C and CAT 2HC, MU-231
for CAT 1C and CAT 1HC. If a different monitor is to be used on IMO vessels, its effective
diameter must meet the applicable Category requirements:
• CAT 1C and CAT 1HC: effective diameter 320 mm or higher
• CAT 2C and CAT 2HC: effective diameter 250 mm or higher
For installation, operation and viewing distance of other monitor, see its manuals.
For BB type, a monitor unit is prepared by user.
4. The sensor adapters are Control Serial MC-3000S, Analog IN MC-3010A, Digital IN
MC-3020D and Digital OUT MC-3030D.
5. Characteristics of contact output for Alarm:
• (Load current) 250 mA
• (Polarity) Normally Open: 2 ports, Normally Close: 2 ports
• Serial I/O for alarm is also possible, which complies with IEC 61162-1.
6. Junction boxes are required for antenna cable length greater than 100 m. Max. cable length
is 400 m.