GECMA KMUi-PS2 Keyboard Mouse Integrated Unit

Module Feature

KMUi-PS2 belongs to GECMA Challenger series, it is an integrated industrial keyboard and mouse combination unit.

It adopts wear-resistant membrane key structure, built-in mouse control module, standard PS2 signal interface. The basic version protection grade is IP20, the suffix -B version carries intrinsic safety barrier for explosion hazardous area application. Widely installed in DCS, turbine control, chemical and oil-gas cabinet operating panel, compatible with old industrial host systems with PS2 port.

Working principle

The keyboard matrix circuit scans key pressing signal, mouse module outputs displacement signal.

Both keyboard and mouse signals are transmitted to the industrial controller or HMI host through PS2 wiring. Intrinsically safe barrier version limits output energy, to meet the requirement of explosion-proof zone.

Onboard components

Membrane key panel, keyboard matrix PCB, mouse control circuit, signal processing board, terminal wiring base, metal mounting frame.

LED indicators

No built-in LED indicator. Operation feedback depends on the connected HMI display screen.

Hardware self‑diagnosis

No independent self-diagnosis circuit. Fault judgment relies on host whether can recognize keyboard and mouse input.

Programming software

No supporting configuration software, plug and play for PS2 compatible industrial systems.

Electrical & Process Parameters

Model:KMUi-PS2 Brand:GECMA Device type:Industrial integrated keyboard & mouse unit Interface:PS2 Protection:IP20 Function:On-site operation input for industrial control cabinet

Mechanical & Structure

Mounting:Panel cutout embedded installation Protection class:IP20 Housing:Metal frame + membrane front panel

Environmental

Operating temperature:-20℃ ~ +60℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non‑condensing Certification:ATEX optional for -B variant Status:GECMA original industrial HMI spare

Installation

Cut cabinet panel according to cutout drawing, fix the keyboard unit into panel.

Wire keyboard and mouse signal terminals separately, check PS2 signal polarity, test key and mouse response after power on.

Interface

Keyboard signal terminal group, mouse signal terminal group.

Diagnostic

No key response: Wiring open circuit, matrix membrane damage.

Mouse no movement: Mouse control board failure, signal line broken.

Intermittent input: Terminal loose, membrane aging.

Host cannot identify: PS2 protocol mismatch.

Product BriefGECMA KMUi-PS2 Challenger industrial integrated keyboard mouse unit, PS2 interface, for control cabinet HMI operation replacement.

Send next part number.