Description
WOODWARD
P/N: 9905-971
LINKNET 16 CHANNEL DISCRETE INPUT MODULE
REV J
CAGE: 31361
The Woodward LinkNet 16 Channel Discrete Input Module (P/N 9905-971, Rev J) is a dedicated signal acquisition module designed to capture and process digital on/off inputs within Woodward’s LinkNet distributed I/O architecture. As part of a Marine Control System, this module serves as a critical interface between field devices — such as switches, sensors, and relay contacts — and the central control or governor system. Its reliable discrete input handling supports automated decision-making and real-time monitoring across a wide range of onboard machinery and process control applications.
Key Features
✓ Provides 16 channels of discrete (digital) input acquisition, enabling simultaneous monitoring of multiple field signals within a single compact module.
✓ Designed for integration within Woodward’s LinkNet distributed I/O network, ensuring compatibility with Woodward governors, controllers, and automation platforms — subject to confirmation of system version and configuration.
✓ Revision J designation indicates a mature, field-proven hardware iteration; specific electrical ratings, voltage levels, and response times should be confirmed against the applicable Woodward technical datasheet or nameplate information.
✓ Suitable for installation in marine control panels and equipment rooms; mounting configuration, environmental protection rating, and SOLAS-relevant compliance should be verified with vessel documentation and OEM guidance.
✓ A direct replacement module for vessels maintaining Woodward LinkNet-based control systems, supporting continuity of automation function during scheduled maintenance or unplanned failure recovery.
Marine Applications
✓ Engine room automation systems aboard merchant vessels, where discrete inputs from pressure switches, temperature contacts, and level sensors feed into centralised control logic.
✓ Main propulsion governor and control systems on motor vessels and tankers utilising Woodward distributed I/O architectures for machinery management.
✓ Auxiliary machinery monitoring panels on offshore support vessels, platform supply vessels, and multipurpose cargo ships requiring reliable digital signal interfacing.
✓ Power management and generator control systems where on/off status signals from circuit breakers, contactors, and protection relays must be accurately captured and transmitted.
✓ Integrated automation and alarm monitoring systems on cruise ships, RoRo ferries, and naval auxiliaries where high channel-count discrete input modules reduce wiring complexity and panel footprint.
Why Marine Engineers Choose
Woodward’s LinkNet platform is well established in marine and industrial governor applications, and the 9905-971 discrete input module is valued for its straightforward integration into existing Woodward control architectures, reducing engineering risk when replacing or expanding I/O capability on vessels already operating Woodward-based systems.
Ideal For
Merchant vessels, offshore support vessels, tankers, bulk carriers, ferries, cruise ships, and any commercial or naval vessel operating Woodward LinkNet-based engine control or automation systems requiring discrete input expansion or module replacement.
Technical Support & Compliance
Technical assistance is available to support troubleshooting, commissioning, retrofit integration, and compatibility verification for the Woodward LinkNet 16 Channel Discrete Input Module. Support may include remote diagnostic guidance, onboard installation advice, and system integration checks — subject to confirmation of the specific control system configuration and vessel requirements. To confirm suitability and compatibility, buyers are encouraged to provide nameplate photographs, the full part number and revision, relevant system drawings or wiring diagrams, the Woodward controller or governor model and software version, vessel name, IMO number, and a clear description of the intended scope of use. All compatibility and compliance assessments are subject to confirmation based on documentation provided.
