Furuno FSV-2401-E-5 Sonar Control Unit

FURUNO FSV-2401-E-5 Full-Circle Scanning Sonar Control Unit

The FURUNO FS-2401V-E-5 is an operator control keyboard engineered for the Furuno FSV-24 / FSV-24S series high-frequency color scanning sonar systems. Commonly misidentified in secondary commercial surplus inventories as a radar console due to chassis layout conventions, this unit is purpose-built as the primary helm control interface for commercial purse seiners and deep-water pelagic trawlers.

Manufactured in Nishinomiya, Japan, the console consolidates tactical transducer hoist/lower deployment switches, dynamic beam tilt/bearing potentiometers, gain attenuation, range selection, and ergonomic trackball target-tracking into an IPX2/IP22 marine wheelhouse enclosure. The suffix designation “-E-5” indicates an English-text legend keypad assembly paired with a 5-meter multi-conductor signal interface interconnection cable (Cable Assembly Type 10S2076 / FP10-02201 harness).

Technical Specifications

Compatibility

• Processor Units: Direct multi-pin interface to FURUNO FSV-2402 and FSV-2402S central processor units.
• System Family: FURUNO FSV-24 (24 kHz) and FSV-24S Full-Circle Color Scanning Sonar Systems.
• Associated Hull Machinery: Interlocks with Hull Lift Mechanism FSV-247 (1200 mm cylinder stroke) and FSV-248 (1600 mm cylinder stroke).
• Multi-Station Configurations: Compatible with optional control junction cabling for bridge wing remote operation (supports up to three consoles using cable kits 10S2076 / 10S1258 extensions).
• Monitor Pairings: Controls displays routed through Furuno MU-190HD, MU-201CE, or third-party marine-grade SXGA monitors.

Applications

• Commercial Pelagic Trawling: Real-time steering of acoustic vertical slices to determine target depth, school packing density, and net opening clearance.
• Purse Seining Operations: High-speed omnidirectional horizontal detection, vessel trajectory alignment, and school tracking during encirclement maneuvers.
• Bridge Wing Remote Command: Secondary docking and net-handling stations requiring remote sonar tracking and transducer hoist control.
• Oceanographic Research Vessels: Acoustic biomass mapping, shoal velocity vector analysis, and boundary layer scattering layer observation.

Frequently Asked Questions

Is the Furuno FSV-2401 a marine radar controller or a sonar controller?

While frequently listed across marine surplus platforms as a radar control unit due to its resemblance to commercial IMO radar keyboards, the FSV-2401 is specifically engineered as the central control console for the Furuno FSV-24 and FSV-24S Full-Circle Color Scanning Sonar series.

What does the “-E-5” suffix denote in part number FSV-2401-E-5?

The “E” designates an English-language silkscreened keyboard overlay, and the “5” indicates that the package includes an original 5-meter multi-core signal interface cable harness (Cable 10S2076). Units designated “-E-10” feature a 10-meter harness.

Can I run two or more FSV-2401 control units on the same vessel?

Yes. The Furuno FSV-24 system architecture supports multi-station bridge environments, allowing up to three FSV-2401 control consoles to link to a single FSV-2402 processor unit for seamless handover between the main console and bridge wing operations.

Can the FSV-2401-E-5 replace a damaged FSV-2401-J console?

Yes. The internal main processor interface board, micro-switches, potentiometers, and trackball assemblies are technically identical. The difference lies strictly in the front-panel language markings (“E” for English, “J” for Japanese).

How do I test the controls if the system is not detecting button inputs?

Access the system self-diagnostic menu from the processor unit. Navigate to System Settings > Test > Diagnostic Test > Panel Test. In this mode, each keypress, rotary detent turn, and trackball pulse illuminates a corresponding graphical register on the monitor, isolating whether an issue is caused by a broken conductor wire in the 10S2076 cable or a failed internal contact switch.