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* 0 dB = 1 V

Power Source 48 V DC (supplied from the IP intercom exchange (option))
Power Consumption 1.8 W (at rated), 2.4 W (max.)
Wiring Method Non-polar one pair stranded wire system
Transmission System 2 wire 160 kbps echo canceller transmission system
Signal Level Under 0 dB*
Speech Method Hands-free conversation
Audio Frequency Range 300 – 7,000 Hz
Transmission Range Max. 1500 m (φ0.65 mm, Loop resistance 170 Ω)
Hands-free Speaker (accessory): 3.5 cm cone-type, 1 W, 8 Ω
Microphone (accessory): Omni-directional electret condenser microphone
Contact Output Open collector output, withstand voltage: Max. 30 V DC, control current: Max. 50 mA
one shot: can be set from 1 to 9 sec, screw terminal (polarized)
Line Connection Terminal 2 wire, screw terminal (non-polar)
Status Indicator LED Connecting Terminal Solderless connector (5 pins, male), voltage: 5 V, maximum load current: 4.1 mA
Call Button Connecting Terminal Solderless connector (5 pins, male), open voltage: 3.3 V DC,
short-circuit current: 1.5 mA
Operation Temperature -10℃ to +50℃
Operation Humidity Under 90% RH (no condensation)
Dimensions 67 (W) × 128.3 (H) × 26 (D) mm
Weight 100 g (including accessories)
Accessory Hands-free speaker (with connection cord) …1,
Hands-free microphone (with connection cord) …1