The KONGSBERG Hipap TRX32 303088 is a 32-channel high-density digital input I/O module developed by Kongsberg Maritime. It is designed for the HiPAP underwater positioning and communication system as well as the K-CHIEF ship automation platform.
As a core signal acquisition unit of the system, it reliably converts discrete signals from on-site dry/wet contacts (including pumps, valves, level/pressure switches, fire and gas detectors, etc.) into digital data and transmits the data to the main control unit. It enables status monitoring, alarm interlock and safety control, and is widely deployed on merchant vessels, LNG carriers, FPSOs and offshore platforms to withstand harsh marine environments.
Product Advantages
High-density IntegrationA single module provides 32 input channels, which greatly reduces the number of modules and cabinet space, and lowers system complexity and wiring costs.
Intelligent Diagnostics & Easy MaintenanceIt supports real-time channel-level diagnostics to accurately identify open circuits, short circuits and sensor faults. Status data can be directly displayed on K-Display and K-Workstation. Onboard inspection is unnecessary, effectively shortening MTTR.
Wide Environmental AdaptabilityOperating temperature: -15°C ~ +70°C; Storage temperature: -25°C ~ +70°C. It withstands vibration up to 4G and 96% non-condensing humidity, suitable for polar regions, tropical areas and high-vibration engine rooms.
Flexible Signal CompatibilitySwitchable between dry contact (1.5 mA) and wet contact (24 V DC / 50‑70 Hz AC). Built-in 24 V DC / 8 mA sensor excitation power supply, compatible with various switches and alarm devices.
Product Features
Communication InterfaceDual redundant CAN bus ensures stable data communication with the Remote Control Unit (RCU).
Electrical ParametersPower supply: 24 V DC;Power consumption: 8 W for RDi‑32Axe, 16 W for RDi‑32xe;Dielectric withstand voltage: 500 V AC.
Physical SpecificationsIP20 protection rating; Weight: 1.8 kg; Dimensions: 216×224×252 mm;Fixed with four M5 screws; Equipped with pluggable screw terminals (2.5 mm² for I/O and power circuits).
Compliance StandardsCompliant with marine environmental standards IACS E10 and IEC 60945.
Application Scenarios
Safety SystemsFire detection loops, flammable gas alarms, bilge water high level and overflow alarms, and position feedback of fireproof and watertight doors.
Cargo & Liquid Cargo SystemsSignal acquisition from pressure and level switches of LNG cargo tanks, valve limit switches and leakage detection devices on LNG carriers.
Deck Machinery & NavigationLimit signals of windlasses and winches, steering gear feedback, navigation light and fog horn control, as well as status monitoring of GPS and gyrocompass.
HiPAP Underwater PositioningDiscrete signal collection for underwater transducer arrays, transponder signals, water depth and attitude sensors.
FAQ
Q1: No signals detected on all channels after power-onA1: ① Check if the 24 V DC power supply works properly and verify correct polarity connection. ② Confirm CAN bus wiring and termination resistor settings. ③ Check indicator lights: a dark PWR light indicates power failure; a non-blinking COM light means communication failure. ④ Reinsert and tighten terminals to resolve poor contact.
Q2: Frequent open circuit fault alarms on several channelsA2: ① Check for loose, broken or corroded wires of the relevant channels. ② Inspect sensors or switches for damage and oxidized contacts. ③ Verify the 24 V DC/8 mA sensor excitation under dry contact mode. ④ Use a spare channel or replace the module if the port is defective.
Q3: Communication lost, module not recognized by K-WorkstationA3: ① Check CAN bus wiring to ensure daisy-chain connection and proper grounding of the shield layer. ② Measure the bus termination resistor; the standard value is 120 Ω. ③ Check for device conflicts or abnormal grounding on the bus. ④ Restart the module and main control unit, and update the firmware if needed.
Q4: Frequent alarms in high-temperature environmentsA4: ① Ensure good cabinet ventilation and no blockage of heat dissipation holes. ② Keep the ambient temperature below +70℃, and install cooling fans if necessary. ③ Retighten terminals loosened by high temperature. ④ Adopt reinforced terminals for higher stability in hot environments.
Q5: How to tell dry contact mode apart from wet contact mode?A5: Dry contact (RDi‑32xe): Passive switch signal. The module outputs 24 V DC/8 mA excitation for unpowered contacts.Wet contact (RDi‑32Axe): Active signal (24 V DC / 50‑70 Hz AC). No excitation power is supplied, suitable for devices with built-in power output.Switch between modes via DIP switches or software configuration.
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