Specifications - Telex BP-1002 Operating Instructions Manual

Figure 1. BP-2002 & BP-1002 Connections and Controls
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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
Unbalanced Intercom Channel:
Output Level: 480 mVrms ±10%
Input Impedance: 200 ohm ±5%
Bridging Impedance: greater than 10,000 ohm
Call Signalling:
Send: 12 ±3 VDC
Receive: 4 VDC minimum
HEADPHONE AMPLIFIER:
Voltage Gain:
20 ±3 dB from the line
Maximum Output:
60 mW into 150 ohm
Frequency Response:
200 Hz to 8 kHz with no more than 4 dB deviation
Audible Alert:
1 kHz, at the headset
Total Harmonic Distortion:
Less than 2% at 50 mW from the line
Sidetone:
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