Furuno FAR-2238S-NXT-BB - Processor Unit RPU-025

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APPX. 7 PARTS LOCATION

AP-48

Processor Unit RPU-025

MAIN board

03P9652

FAN

(attached to plate)

FAN

(attached to plate)

LAN Signal

Converter*

RPU-025 front view

Remove caps to replace fuses

FIL board

AC-powered: 03P9545

DC-powered: 03P9676

(Under LAN Signal Converter)

FIL board

AC-powered: 03P9545

DC-powered: 03P9676

(Under LAN Signal Converter)

PWR2 board*

03P9527

PWR1 board

AC-powered: 03P9543

DC-powered: 03P9677

TB board

03P9648

Remove top layer (inner chassis)

to show PWR1 and PWR2 boards.

*: The presence of this component depends on configuration purchased.

FAN

FAN*

Fuse 1Fuse 1 Fuse 2*Fuse 2*

Main Page

IMPORTANT NOTICES3
SAFETY INSTRUCTIONS4
TABLE OF CONTENTS7
FOREWORD14
SYSTEM CONFIGURATION19
1. OPERATIONAL OVERVIEW27
- 1.1 Controls Overview27
  - 1.1.1 Control Unit RCU-01427
  - 1.1.2 Control Unit RCU-015/RCU-01629
- 1.2 How to Turn the Radar On/Off30
- 1.3 How to Adjust the Brilliance30
- 1.4 Display Indications31
  - 1.4.1 InstantAccess bar™ buttons32
  - 1.4.2 Radar display and shortcuts33
  - 1.4.3 Information and settings35
- 1.5 Menu Operations36
  - 1.5.1 How to open and close the main menu36
  - 1.5.2 How to operate the menus36
- 1.6 How to Use the On-screen Box Menus38
- 1.7 How to Use the CURSOR Menu39
- 1.8 Cursor Data40
  - 1.8.1 How to change the cursor data attributes (B/W-type only)41
- 1.9 How to Set Up Function Keys41
- 1.10 How to Customize Operation43
- 1.11 How to Select the Interface for Heading Input45
- 1.12 How to Set Own Ship’s Speed45
  - 1.12.1 Automatic speed input (log or EPFS navigator)45
  - 1.12.2 Manual speed input47
- 1.13 How to Set the Own Ship Position47
- 1.14 How to Adjust the Date and Time48
- 1.15 User Settings49
  - 1.15.1 How to reset the user settings51
  - 1.15.2 How to save/load user settings51
- 1.16 How to Start/Stop Transmission52
- 1.17 How to Tune the Receiver (Magnetron Radars Only)53
  - 1.17.1 How to select the tuning method53
  - 1.17.2 How to initialize tuning53
  - 1.17.3 How to tune the receiver manually53
- 1.18 How to Select a Pulselength54
  - 1.18.1 How to select a pulselength54
  - 1.18.2 How to change the preset pulselength54
- 1.19 How to Adjust Sensitivity55
- 1.20 How to Reduce Sea Clutter55
  - 1.20.1 How to select the method of clutter adjustment55
  - 1.20.2 How to fine-tune sea clutter reduction56
  - 1.20.3 How to manually reduce sea clutter56
  - 1.20.4 How to use the BERTHING STC function57
- 1.21 How to Reduce Rain Clutter57
  - 1.21.1 How to select the method of rain clutter reduction58
  - 1.21.2 How to manually reduce the rain clutter58
- 1.22 Interference Rejector60
- 1.23 Echo Stretch61
- 1.24 Echo Averaging62
- 1.25 Automatic Clutter Elimination (ACE) Function64
  - 1.25.1 How to turn the Automatic Clutter Elimination (ACE) function on/off64
  - 1.25.2 How to adjust the gain in Automatic Clutter Elimination (ACE) mode64
  - 1.25.3 How to get high sensitivity65
  - 1.25.4 How to suppress false echoes65
- 1.26 Noise Rejector66
- 1.27 Wiper66
- 1.28 How to Preset Controls for a Specific Navigation Purpose67
  - 1.28.1 How to select a customized echo70
  - 1.28.2 How to edit a customized echo70
  - 1.28.3 How to restore a user customized echo to the saved settings71
  - 1.28.4 How to restore a user customized echo to the factory default settings72
  - 1.28.5 How to edit the available customized echoes72
- 1.29 How to Reject Second-trace Echoes73
- 1.30 Orientation Modes74
  - 1.30.1 How to select an presentation mode74
  - 1.30.2 Description of presentation modes74
- 1.31 How to Select a Range Scale76
- 1.32 How to Measure Range77
  - 1.32.1 How to show/hide the range rings77
  - 1.32.2 How to measure range with the variable range marker (VRM)78
  - 1.32.3 How to set the VRM unit of measurement (B-type only)79
  - 1.32.4 How to show TTG to VRM79
- 1.33 How to Measure Bearing80
  - 1.33.1 Methods to measure bearing80
  - 1.33.2 True or relative bearing81
- 1.34 Collision Assessment by Offset EBL82
  - 1.34.1 How to assess risk of collision using the offset EBL82
  - 1.34.2 How to set the origin point reference for EBL OFFSET83
- 1.35 How to Measure Range and Bearing Between Two Targets84
- 1.36 How to Off-Center the Display86
- 1.37 Target Trails87
  - 1.37.1 True or relative trails87
  - 1.37.2 Trail time88
  - 1.37.3 Trail gradation89
  - 1.37.4 Trail level89
  - 1.37.5 Narrow trails (B/W-type only)90
  - 1.37.6 How to hide the trails temporarily90
  - 1.37.7 Trail stabilization in true motion90
  - 1.37.8 How to erase/restart trails91
  - 1.37.9 How to prevent sea clutter in true trails91
  - 1.37.10 How to show/hide OS trails92
  - 1.37.11 How to show/hide land trails (B/W-type only)92
  - 1.37.12 How to set the trail length (B/W-type only)93
  - 1.37.13 How to set the trail color (B/W-type only)93
  - 1.37.14 How to remove the colors from a section of a multicolor trail (B/W-type only)94
  - 1.37.15 How to offset the colors for multicolored trail (B/W-type only)95
- 1.38 Target Analyzer (B/W-type only)96
  - 1.38.1 How to activate/deactivate the target analyzer97
- 1.39 Target Alarm98
  - 1.39.1 How to set a target alarm98
  - 1.39.2 How to mute the target alarm99
  - 1.39.3 How to deactivate a target alarm99
  - 1.39.4 How to change target alarm attributes99
- 1.40 PI (Parallel Index) Lines100
  - 1.40.1 How to show/hide the PI lines100
  - 1.40.2 How to set the maximum number of lines to display100
  - 1.40.3 How to change PI line bearing and interval101
  - 1.40.4 How to change the PI line bearing reference (B/W-type only)101
  - 1.40.5 How to change the PI line orientation102
  - 1.40.6 How to reset the PI lines to default (ship’s heading)102
  - 1.40.7 How to change PI line length (IMO/A/B/R-types only)102
- 1.41 How to Use the Net (Diamond) Cursor (B/W-type only)103
  - 1.41.1 How to activate the net cursor103
  - 1.41.2 How to set the net cursor dimensions and orientation104
- 1.42 Zoom105
- 1.43 How to Use Marks106
  - 1.43.1 Heading line mark106
  - 1.43.2 How to hide/show the stern mark106
  - 1.43.3 North mark107
  - 1.43.4 How to set up the own ship symbol107
  - 1.43.5 How to set the barge marker107
  - 1.43.6 Antenna mark108
  - 1.43.7 Latitude/longitude grid108
- 1.44 Drop Mark109
  - 1.44.1 How to activate the drop mark109
  - 1.44.2 How to inscribe a drop mark109
  - 1.44.3 How to erase drop marks109
- 1.45 Brilliance and Color Schemes110
  - 1.45.1 How to select a brilliance and color scheme110
  - 1.45.2 How to change the color and brilliance assigned to a palette110
  - 1.45.3 How to change the color palette112
- 1.46 How to Display and Set Up Navigational Data113
  - 1.46.1 How to set up the navigational data113
  - 1.46.2 How to display navigational data114
- 1.47 How to Use the Information Box115
- 1.48 Interswitch117
  - 1.48.1 How to display antenna information117
  - 1.48.2 How to preset antenna and display combinations118
  - 1.48.3 How to clear the interswitch120
- 1.49 Performance Monitor120
  - 1.49.1 How to activate/deactivate the performance monitor120
  - 1.49.2 How to check the radar’s performance122
- 1.50 How to Change the Reference Position123
- 1.51 Anchor Watch124
- 1.52 Alerts125
  - 1.52.1 What is an alert?125
  - 1.52.2 How to interpret the [ALERT] box126
  - 1.52.3 How to acknowledge an alert126
  - 1.52.4 How to silence the alert buzzer126
  - 1.52.5 Alert list127
  - 1.52.6 Alert icons and their meanings129
  - 1.52.7 Responsibility transfer alert130
- 1.53 Icing Prevention131
- 1.54 How to Select a Display Mode (B/W-type Only)132
- 1.55 How to Manage SD Card Data133
  - 1.55.1 Formatting the SD card133
  - 1.55.2 Cautionary notes on handling SD cards133
  - 1.55.3 Compatible SD cards133
  - 1.55.4 How to insert SD cards134
  - 1.55.5 How to remove SD cards134
  - 1.55.6 How to save data to an SD card135
  - 1.55.7 How to read (load) data from an SD card135
  - 1.55.8 How to delete data from an SD card135
- 1.56 How to Take a Screenshot136
- 1.57 How to Use the Watch Alert (A/B/W-types only)136
- 1.58 Dual Radar (A/B-types only)137
  - 1.58.1 How to toggle control of each dual radar display138
  - 1.58.2 Operating considerations for the dual radar display139
- 1.59 Wave Mode141
- 1.60 Doppler Feature (X-band Solid State Radars only)142
2. RADAR OBSERVATION143
- 2.1 General143
- 2.2 False Echoes145
- 2.3 SART (Search and Rescue Transponder)147
- 2.4 RACON149
- 2.5 Radar Target Enhancer (RTE)149
- 2.6 Solid state radar150
3. TARGET TRACKING (TT)151
- 3.1 Precautions when Using Target Tracking151
- 3.2 TT Controls152
- 3.3 TT Box Overview152
- 3.4 How to Select the TT mode153
- 3.5 How to Acquire and Track Targets154
  - 3.5.1 How to manually acquire a target154
  - 3.5.2 How to automatically acquire targets155
- 3.6 How to Enter Own Ship Speed155
  - 3.6.1 Echo-referenced speed input155
- 3.7 How to Cancel Target Tracking157
  - 3.7.1 How to cancel tracking for individual TT targets157
  - 3.7.2 How to cancel tracking for all TT targets157
- 3.8 TT Lost Alert158
  - 3.8.1 How to set the TT lost filter158
  - 3.8.2 How to enable/disable the lost alert158
- 3.9 TT Symbols and Attributes159
  - 3.9.1 How to adjust symbol brilliance159
  - 3.9.2 How to set the symbol color159
  - 3.9.3 How to select a TT symbol (B/W-types only)160
- 3.10 How to Display/Remove Target Data160
  - 3.10.1 TT pop up information160
  - 3.10.2 How to show/remove target data in the data display area161
  - 3.10.3 How to display, hide and sort the target list162
- 3.11 How to Assign a Preset Name to TT Targets (B/ W-type only)164
  - 3.11.1 How to activate the preset name function164
  - 3.11.2 How to setup preset names164
  - 3.11.3 How to assign a name to a TT165
- 3.12 Vector Modes166
  - 3.12.1 Description of vectors166
  - 3.12.2 Vector mode and length168
- 3.13 Past Position Display169
  - 3.13.1 How to display past position points and select the plotting interval169
  - 3.13.2 How to select the number of past position points to be displayed169
- 3.14 Set and Drift170
- 3.15 Collision Alarm (CPA, TCPA)171
  - 3.15.1 How to set the CPA and TCPA ranges171
  - 3.15.2 How to acknowledge the TT collision alarm172
- 3.16 Acquisition Zone172
  - 3.16.1 How to enable the acquisition zones172
  - 3.16.2 How to activate the first acquisition zone (AZ1)173
  - 3.16.3 How to set a polygon acquisition zone (AZ2)173
  - 3.16.4 How to sleep/deactivate an acquisition zone174
  - 3.16.5 How to acknowledge the acquisition zone alert174
  - 3.16.6 How to select the target type to acquire (B/W-types only)174
  - 3.16.7 How to change the acquisition zone reference175
  - 3.16.8 How to set acquisition zone shape and stabilization (B/W- types only)175
- 3.17 Trial Maneuvers177
  - 3.17.1 Types of trial maneuvers177
  - 3.17.2 How to perform a trial maneuver178
  - 3.17.3 How to stop the trial maneuver180
- 3.18 TT System Messages181
- 3.19 TT Simulation Mode182
- 3.20 Criteria for Tracking Target Selection183
- 3.21 Factors Affecting Target Tracking184
4. AIS OPERATION187
- 4.1 Controls for AIS189
- 4.2 AIS Box Overview190
- 4.3 How to Select the AIS Display Mode190
- 4.4 AIS Symbols and Their Meanings191
- 4.5 How to Use the AIS Display Filter191
- 4.6 How to Activate AIS Targets193
  - 4.6.1 How to activate specific targets manually193
  - 4.6.2 How to set the AIS auto activate function194
- 4.7 How to Sleep AIS Targets195
  - 4.7.1 How to sleep individual AIS targets195
  - 4.7.2 How to sleep all AIS targets195
- 4.8 How to Set Up For a Voyage196
  - 4.8.1 How to access the VOYAGE DATA menu196
- 4.9 How to Display AIS Data197
- 4.10 How to Change AIS Symbol Attributes201
- 4.11 Past Position Display202
- 4.12 AIS Lost Alert204
  - 4.12.1 How to set the AIS lost filter204
  - 4.12.2 How to enable/disable the AIS lost alert205
- 4.13 ROT Setting205
- 4.14 AIS Collision Alarm (CPA, TCPA)206
  - 4.14.1 How to set the CPA and TCPA ranges206
- 4.15 How to Associate TT and AIS Targets207
- 4.16 How to View Own Ship Data209
- 4.17 How to Use AIS Messages210
- 4.18 AIS System Messages216
5. VIDEO PLOTTER OPERATION217
- 5.1 Orientation Modes217
- 5.2 How to select a mark type217
- 5.3 How to select the mark inscription position218
- 5.4 Radar Map219
- 5.5 Origin Mark224
- 5.6 How to Change the Shape of the Own Ship Mark226
- 5.7 How to Use ECDIS Chart Marks227
- 5.8 Own Ship and Other Ship’s Track228
- 5.9 How to Use Waypoints232
- 5.10 Routes236
- 5.11 Chart Functions241
6. MAINTENANCE, TROUBLESHOOTING247
- 6.1 Periodic Maintenance Schedule248
- 6.2 How to Replace the Fuse249
- 6.3 Life Expectancy of Major Parts250
- 6.4 Trackball Maintenance251
- 6.5 Easy Troubleshooting251
- 6.6 Advanced-level Troubleshooting252
- 6.7 Diagnostics254
- 6.8 Sentence Monitor259
- 6.9 Fallback Arrangements260
APPX. 1 MENU TREE261
APPX. 2 LONGITUDE ERROR TABLE (96 NM SCALE)269
APPX. 3 ALERT LIST271
APPX. 4 DATA COLOR AND MEANING294
APPX. 5 ABBREVIATIONS295
APPX. 6 SYMBOLS300
APPX. 7 PARTS LOCATION307
APPX. 8 RADIO REGULATORY INFORMATION317
SPECIFICATIONS318
INDEX327
- A327
- B327
- C327
- D327
- E327
- F327
- H327
- I327
- L328
- M328
- N328
- O328
- P328
- R328
- S328
- T328
- V329
- W329
Declaration of Conformity330

Furuno FAR-2238S-NXT-BB - Processor Unit RPU-025

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