Simrad RI9 - Rf45 X Rudder Feedback Unit; General; Technical Specifications

Instruction manual
20220562E 25
3 RF45X RUDDER FEEDBACK UNIT
3.1 General
The RF45X is a medium duty rudder feedback unit. Mechanically it is
identical to it’s predecessor RF45, therefore it is a repairable rather
than a potted throw away item. Electrically it outputs a frequency
(pulse width modulated) signal that matches with the J3XX input
(AP35/AP50), but it can also output a frequency signal (selectable via
internal jumpers) that matches with AP45 and AP9 Mk3. The RF45X
can also operate on 24V DC, a useful feature when connected in a
stand alone rudder angle indicator system.
The unit is mounted close to the rudder stock and is mechanically
connected to the rudder by the RF45 transmission link.
3.2 Technical specifications
Dimensions:...................................................................................See Fig. 3-1 and Fig. 3-2.
Weight: ...................................................................................................... 1,0 kg (2,2 lbs.)
Material: ................................................................................................Polyacetal (POM)
Supply voltage:................................................ 12-24 VDC –10%/+30%, system supplied
Environmental Protection:...........................................................................................IP56
Temperature range:
Operation: ..........................................................–25 to +55°C (–13 to +130°F)
Storage: .............................................................–30 to +80°C (–22 to + 176°F)
Cable:.................................................................................................................. 2 m (6 ft.)
Rudder angle:..............................................................................................................± 45°
Output signal: ........................................................ Polarity-independent frequency signal
Frequency resolution:.......................Center: 3400 Hz, 20 Hz/degree of change
Linearity:...................................................................... ± 3° up to 45° of rudder
Current output for rudder angle indicator (only for stand-alone system).. 0.1mA - 1.1mA
Number of indicators (only for stand-alone system):......................................... 5 in series