Description
TYCO ELECTRONICS
MODULAR PLUG HAND TOOL
RS 250-3539
208552984
RS 470-128
CONNECTOR ORIENTATION
STRIP
The Tyco Electronics RS 250-3539 Modular Plug Termination Hand Tool is a specialist crimping and termination instrument designed for preparing and securing modular plug connectors. Used within fire alarm system wiring installations aboard vessels, this tool supports accurate connector strip orientation and reliable plug termination — critical tasks where signal integrity and connection quality directly affect the performance of onboard detection and alarm circuits.
Key Features
✓ Designed for modular plug termination with integrated stripping and connector orientation functions, ensuring consistent and repeatable crimp quality.
✓ Specific technical ratings and dimensional data are subject to confirmation against product documentation; performance is typical of professional-grade hand termination tooling.
✓ Compatible with modular plug connectors as used in fire alarm system control and signalling wiring; system panel compatibility should be verified against the relevant installation configuration.
✓ Suitable for use during installation or maintenance of fire alarm system cabling in both control room and distributed detection circuit environments aboard marine vessels.
✓ Supports efficient field termination without requiring powered equipment, making it well suited to onboard service, commissioning, and replacement wiring tasks.
Marine Applications
✓ Fire alarm system wiring termination aboard commercial cargo vessels, tankers, and bulk carriers.
✓ Passenger ferry and cruise vessel detection system cable preparation during commissioning or periodic maintenance.
✓ Offshore platform and FPSO fire and gas detection panel wiring installations.
✓ Naval and coastguard vessel alarm system cable management and connector replacement work.
✓ Onboard refit and upgrade projects where existing fire alarm wiring infrastructure requires re-termination or connector renewal.
Why Marine Engineers Choose
Marine engineers and electrical officers rely on purpose-built termination tooling from established manufacturers like Tyco Electronics to maintain the quality and reliability of safety-critical fire alarm system connections — where a poorly terminated connector can compromise the integrity of the entire detection network.
Ideal For
Commercial shipping fleets, offshore installations, passenger vessels, naval platforms, and any marine sector where fire alarm system wiring integrity must be maintained to the highest standard.
Technical Support
Technical support is available for this hand tool and its application within marine fire alarm systems. Assistance covers onboard installation guidance, correct usage for connector termination, and remote troubleshooting of related wiring issues.




