| Error | Solution | | :--- | :--- | | | Close Bosch Remote Control or any terminal software (PuTTY, HyperTerminal). Reboot the PC. | | "Version mismatch: Firmware 3.02" | The hardware has newer firmware. You cannot downgrade the hardware. You must use config tool v3.02 or higher. | | Corrupted project file (.pla) | Open a backup. The software creates .bak files in the same directory. Rename to .pla . | | "Run-time error '8020'" | Serial buffer overflow. Reduce baud rate to 9600 in both software and hardware (Dip switch 3 on LBB1995/00). |
The heart of the system is the Voice Alarm Controller (model LBB1990/00), which centrally stores, manages, and distributes emergency calls, business calls, and background music. The system is fully supervised and complies with the IEC 60849 standard, including loudspeaker line impedance supervision, a supervised emergency microphone, and a supervised message manager for up to 255 pre-recorded messages and chimes. You can upload messages and configurations from a PC via USB into the controller’s memory, after which the unit can operate without a PC connection. plena voice alarm system configuration 3.01 01 download