The Tokyo Keiki AJB-001 Connection Box is the critical central component of the advanced WAS-1000 Bridge Navigational Watch Alarm System (BNWAS). Designed for reliability and seamless integration, this unit acts as the system’s nerve center, managing all inputs, outputs, and power distribution. It ensures your vessel fully complies with the latest IMO SOLAS regulations (Chapter V, Regulation 19) by providing a failsafe mechanism to monitor bridge activity and prevent unattended operation.
Key Features & Benefits
-
Centralized System Hub:Â The AJB-001 simplifies installation and troubleshooting by serving as the single connection point for all system components, including the main control unit, reset buttons, and audible alarms.
-
SOLAS Compliance:Â Ensures your vessel meets international maritime safety standards for Bridge Navigational Watch Alarm Systems.
-
Dual Power Supply Input:Â Features connections for both 24VDC and 110/220VAC power sources, providing operational redundancy and enhancing system reliability in critical situations.
-
Comprehensive I/O Management:Â Equipped with multiple terminal blocks for connecting remote reset buttons, audible alarms (sirens), mute functions, and external system monitoring outputs.
-
Durable Marine Construction:Â Built to withstand the harsh marine environment, featuring a robust casing that offers protection against corrosion, vibration, and electromagnetic interference.
-
Intuitive Visual Indicators:Â LED status lights on the box provide at-a-glance information on system power, operational status, and alarm states, facilitating quick diagnostics.
Technical Specifications
| Attribute | Specification |
|---|---|
| Model | Connection Box AJB-001 |
| Compatible System | Tokyo Keiki WAS-1000 BNWAS |
| Primary Function | Central Connection & Interface Unit |
| Power Supply | 24V DC / 100-110V AC / 200-220V AC (as required by system configuration) |
| Construction | Robust metal housing, designed for marine use |
| Protection Class | Typically IP22 or similar, suitable for bridge and wheelhouse installation |
| Connections | Screw terminal blocks for power, reset buttons, alarms, and external interfaces |
How It Works & System Integration
The AJB-001 is the intermediary between the WAS-1000 Main Control Unit and the various peripherals scattered across the bridge and navigation stations.
-
Centralized Wiring:Â All cables from remote reset buttons (e.g., on the bridge wings, chart table) and audible alarms are routed back to the terminal blocks inside the AJB-001.
-
Power Distribution:Â The box receives primary and optional secondary power, distributing it securely to the main control unit and other connected devices.
-
Signal Processing:Â It relays the “reset” signals from the push buttons to the main unit and routes the alarm activation commands from the main unit to the appropriate sirens or visual indicators.
-
External Communication:Â Provides terminals for connecting the BNWAS to other bridge systems, such as a central alarm panel, to indicate BNWAS status or faults.
Application & Use Cases
The Tokyo Keiki AJB-001 is an indispensable part of the WAS-1000 system, which is installed on a wide range of vessels, including:
-
Cargo Ships
-
Tankers
-
Passenger Ferries & Cruise Ships
-
Offshore Support Vessels
-
Mega-Yachts















