• Non-polarized two-wire for
communication and talk, cost
effective for wiring.
• Connect to Addressable TN7300
• EN54-4 Compliance
• Intelligent 5A Power supply unit
• Can sit on the loop to monitor by the Fire control panel
• Digital display showing output voltage and load current
• Overload, overcharge and over usage protection
• Fully Monitored with Self-test function
• Wall mount installation
• Isolating input and output of the bus, power
supply, enhancing the communication quality
and anti-interference ability.
• Non-polarized 24VDC power input and
telephone bus input, convenient for installation,
operation and maintenance in field.
• Featuring of short circuit protection for bus
• Non-polarized two-wire for communication
and talk, cost effective for wiring.
• Using electronic addressing.
• Lifting the extension can call a fire telephone
• As the extension receives a call from a fire
telephone control panel, it will ring to remind
customers of answering it.
• The handset can be taken along so that it is
convenient for fire management personnel to
• Using special telephone chip with clear and
• The handset can directly call a fire telephone
control panel as it is plugged into a jack socket.