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SPECIFICATIONS
GENERAL:
Power Requirements:
Channel supplied: 24 VDC nominal, 45 to 70 mA
Local-power: (BP-2000 only) 24 VDC nominal (18 to 30
VDC), 45 to 70 mA
Environmental Requirements:
Storage: -20ºC to 80ºC; 0% to 95% humidity,
non-condensing
Operating: -15ºC to 60ºC; 0% to 95% humidity,
non-condensing
Dimensions: 5.0" (127 mm) H x 3.5" (88.9 mm) W x 1.8"
(45.7 mm) D
Weight: 1.5 pounds (0.68 kg)
INTERFACE REQUIREMENTS:
Headset:
50 to 200 ohm dynamic microphone
150 to 600 ohm headphones
Balanced Intercom Channel:
Output Level: 1 Vrms nominal
Input Impedance: 300 ohm ±5%
Bridging Impedance: greater than 10,000 ohm
Call Signalling:
Send: 20 kHz ±100 Hz, 0.5 Vrms ±10%
Receive: 20 kHz ±800 Hz, 100 mVrms
Mic-Off Frequency:
Detect: 24 kHz ±800 Hz, 100 mVrms
Noise Contribution: less than -60 dB on the line