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Installation Manual
20220844B 31
5.3 RSR77 Steering Repeater (Step)
Introduction
The RSR steering repeater satisfy a number of applications
where accurate repetition of ships heading is displayed for
pilotage or navigation purpose.
The display consists of an electro-mechanically driven compass
card graduated in degrees. A lubber line is provided at the 000
degree mark
Interface between the display and the ships system is through a
cable, which may be terminated through a suitable junction box.
Alignment and dimming facilities are provided through a
membrane keypad on the front of the steering repeaters.
Specifications
Overall dimensions: .................................................... 196 x 196 mm
Card diameter: ....................................................................... 120 mm
Depth: ………...................... 125 mm allowing for cable clearance)
Weight (nominal):......................................................................2.2 kg
Mounting options:..............................Trunnion or Panel mounted
Finish:.............................................................Satin black (RAL 9005)
Compass safe distance...................................................................2 m
Electrical
Power supply: .....................From gyro supply 24V, 35V, 50V, 70V
positive or negative common.
Overvoltage protection: Continuous 25%. Transient (100ms) 35%
Data input:........................... 6 steps per degree24V, 35V, 50V, 70V
positive or negative common.
Data line current:......................................................................20 mA
Power line current:.................................................................500 mA
Operation
Display alignment: Continuous speed; one revolution
(360°); per 20 seconds.
Display illumination: Push button operated providing 70
degrees back illumination to compass
card and lubber line.