Fire alarm control panel DH99E

3-channelmicroprocessordigital

Product name
Emergency Telephone System Control Panel DH99E

Product features

• Two-bus technology: combined power and communication on two buses for simplified debugging.
• Bus short-circuit and open-circuit detection with audible and visual alarm.
• Hardware and software anti-interference measures for reliable operation in complex environments.
• Differential voice transmission on the bus for strong interference resistance.
• Silica gel buttons providing ergonomic feel and long service life.
• Host and extension support full-duplex calls; host can communicate with up to three extensions simultaneously.
• Records and displays calling and answering times; stores and allows querying of up to 120 call records between host and extensions.

Product Info
The fire telephone system is dedicated communication equipment for firefighting, compliant with national standard GB16806-2006 Fire Linkage Control System. The system consists of a fire telephone host (host), fire telephone extensions (extension) and fire telephone jacks, and is intended for communication and coordination during a fire or emergency in a building.

Technical Parameters

• Power supply: Mains AC 220V (+10%, -15%, 50Hz); standby: external DC24V
• Bus current: 3600 mA
• Frequency range: 300–3400 Hz
• Transmission attenuation: 25 dB
• Recording duration: > 20 min
• Bus length: up to 1,500 m
• Weight: 10 kg
• Dimensions: 406 × 331 × 174 mm
• Working environment: Temperature 0 to +40 °C, RH ≤ 95%
• Bus capacity: up to 99 addresses (set by binary code switch)
• Line condition: extension loop resistance (excluding telephone) ≤ 300 Ω