What it can do — LITES MHU116/117¶

Feature by feature, as assessed on 2026-09-21. Read the limitation column before you promise a customer something the hardware cannot do.

Connection, health and audit¶

Feature	Supported	Limitation
Connection & session	Yes	—
Liveness / keepalive	Yes	—
Time synchronization	Yes	—
Offline audit recovery	Partially	Events from a short disconnect come back in order. After a very long outage some events may not come back; that case is not yet proven.
Health & supervision	Yes	—
Configuration & reset audit	Yes	—
Configuration discovery	Yes	—

Feature	Supported	Limitation
Fire panel state	Partially	Day and night are shown as the panel sets them; Protequ cannot switch the mode. The pre-alarm, conditional alarm and technological alarm indications on the panel tile have not yet been confirmed on a real panel.
Fire detection & address state	Yes	—
Fire signaling outputs	Partially	Brigade routing and fire-service panels are not separate devices. Mute sounder silences the external acoustics; it does not enable or disable the siren circuit.
Fire intervention window	Partially	Confirmation and investigation windows are shown when the panel starts them. Protequ cannot change their length, and the remaining-time figure has not been confirmed against the panel clock.
Fire system control	Partially	Reset, mute buzzer, mute and reactivate sounders, manual alarm, bypass, test and output Activate work. Enabling or disabling the siren circuit and changing delays are not offered. Day and night cannot be commanded.

Feature	Supported	Limitation
Inputs	Partially	Protequ cannot close an input. The contact is read only; the operator can bypass it or put it in test. End-of-line supervision is not configured from Protequ.
Outputs	Partially	Outputs can be activated, deactivated and bypassed. A timed or pulsed activation cannot be commanded from Protequ.
Output schedules	No — the hardware cannot do it	Output timing and schedules cannot be programmed from Protequ.