Fire Telephone Sub-station

Model No.: Model DH2203FZ Fire Telephone Sub-station
Applicable Standards: GB 16806-2006, GB 3380, GB/T 15279-2002
Operating Voltage: DC 18V ~ DC 30V (Powered by DH2201 Fire Telephone Main Unit via telephone bus)
Operating Current: <0.6mA (standby), <15mA (talking)
Wiring Mode: Non-polar Two-wire Bus (L1, L2)
Mounting Height: ≤1.5m
Operating Environment: Indoor; Temperature: -25℃ ~ +70℃; Relative Humidity ≤95% (40℃±2℃, non-condensing)