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Specifications
General
Power Requirements:
Phantom Power: 24 VDC nominal (12 to 30 VDC), 65 to 150 mA
Local Power: 12 to 15 VDC, 65 to 150 mA
Dimensions: Mounts in standard two-gang electrical box
Environmental Requirements:
Storage: -20°C to 80°C; 0% to 95% humidity, non-condensing
Operating: -15°C to 60°C; 0% to 95% humidity, non-condensing
Dynamic-mic Headset
Microphone: 50 to 200 ohm, dynamic (balanced or unbalanced)
Headphones: 150 to 600 ohm, monaural
Connector Type: XLR-4M
Pin 1 Microphone low
Pin 2 Microphone high
Pin 3 Headphone high
Pin 4 Headphone low
Intercom Channels, Balanced Mode (SW1 set to BAL position)
Output Level: 1 Vrms nominal
Input Impedance: 300 ohms
Bridging Impedance: greater than 10,000 ohms
Sidetone: -40 dB, 35 dB adjustable range
Call Signaling:
Send: 20 kHz ±100 Hz, 0.5 Vrms ±10%
Receive:20 kHz ±800 Hz, 100 mVrms
Mic-Kill Detect Frequency: 24 kHz ±800 Hz, 100 mVrms
Noise Contribution: less than -70 dB
Common Mode Rejection Ratio: greater than 50 dB
Connector Type: Six-position terminal block with screw-in wire clamps
Pin 1 Audio and DC Common
Pin 2 Local power (12 to 15 VDC, 65 to 150 mA)
Pin 3 Intercom channel 1 audio low and +24 VDC phantom power
Pin 4 Intercom channel 1 audio high and +24 VDC phantom power
Pin 5 Intercom channel 2 audio low and +24 VDC phantom power
Pin 6 Intercom channel 2 audio high and +24 VDC phantom power
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Audiocom®