LCU24
Reliable Siren Control
Local Control Unit LCU24
LCU24 is a modern control device designed for manual control of a single siren via the aBUS® interface. It allows activation and deactivation of the siren, live announcements from a microphone, playback of predefined warning messages, and performing siren diagnostics including displaying results.
LCU24 is equipped with a 5″ full-color touchscreen display with a resolution of 800 × 480 px. An intuitive graphical interface and clear menu provide quick access to announcements, signals, siren status, and system settings. The control system is designed for simplicity, reliability, and fast response even in emergency situations. Access to functions is restricted to authorized personnel only, secured by a PIN code.
The device is available in two versions to meet different operational conditions:
The device is available in two versions to meet different operational conditions:
LCU24-I
- Internal control unit integrated directly into the siren box
- Compact solution saving space and cabling
- High resistance to environmental influences
LCU24-W
- External control unit in a robust lockable stainless-steel wall-mounted box
- Convenient access to siren control without opening the siren box
- Suitable for installations where control is required from a different location than the siren box itself (e.g., dispatch center)
Key Features of LCU24
- Activation of warning signals and announcements – selection and triggering of warning tones or voice messages stored in the siren
- Deactivation of warning signals and announcements – termination of tone or voice message playback
- Broadcasting live announcements from a microphone – direct broadcasting of voice messages via a microphone with PTT (Push-To-Talk) function
- Playback of predefined voice messages – selection and playback of pre-recorded announcements stored in the system
- Playback of live radio signal – activation of external radio input
- Playback from an external audio source – activation of local external audio input
- Siren diagnostics – testing components, power supply, batteries, temperature, and amplifiers, including displaying results
- User authorization – access protection by PIN code
Technical Parameters of LCU24 Control Unit
| Supply voltage | 8 – 32 V DC |
| Power consumption (12 V) | 171 mA (display on) / 68 mA (standby) |
| Power consumption (24 V) | 88 mA (display on) / 31 mA (standby) |
| Dimensions of LCU-I board | 137×84×35 mm |
| Weight of LCU-I board | 300 g |
| Dimensions of LCU-W box | 300 × 260 × 110 mm |
| Weight of LCU-W box | 4 000 g |
| Protection class (LCU24-W) | IP65 |
| Operating temperature range | -25°C až +65°C |
| Display | 5” color LCD, 800×480 px |
| Security | PIN code authorization |
| Communication | 1× aBUS® (CAN bus), 1× USB-C |
| Audio | MIC input, automatic gain, aBUS3 output |
| Supply voltage | 8 – 32 V DC |
| Power consumption (12 V) | 171 mA (display on) / 68 mA (standby) |
| Power consumption (24 V) | 88 mA (display on) / 31 mA (standby) |
| Dimensions of LCU-I board | 137×84×35 mm |
| Weight of LCU-I board | 300 g |
| Dimensions of LCU-W box | 300 × 260 × 110 mm |
| Weight of LCU-W box | 4 000 g |
| Protection class (LCU24-W) | IP65 |
| Operating temperature range | -25°C až +65°C |
| Display | 5” color LCD, 800×480 px |
| Security | PIN code authorization |
| Communication | 1× aBUS® (CAN bus), 1× USB-C |
| Audio | MIC input, automatic gain, aBUS3 output |
Reliability and Easy Integration into the Warning System
LCU24 offers fast response, clear operation, and high reliability even under demanding conditions. Thanks to IP65 protection and robust construction, the external version is suitable for outdoor environments. LCU24 is fully compatible with Pavian and Gibon electronic sirens and is the ideal choice for local siren activation in case of connectivity loss or when manual intervention is required.
