Telex AUDIOCOM BP-2000 - Manual (Page 15)

SPECIFICATIONS
GENERAL:
Power Requirements:
Channel supplied: 24 VDC nominal, 45 to 70 mA
Local-power: (BP-2000 only) 24 VDC nominal
(14 to 30 VDC), 45 to 70 mA
Environmental Requirements:
Storage: -20
ºC to 80ºC; 0% to 95% humidity,
non-condensing
Operating: -15 ºC 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
W dynamic microphone
150 to 600
W headphones
Balanced Intercom Channel:
Output Level: 1 Vrms nominal
Input Impedance: 300
W ±5%
Bridging Impedance: greater than 10,000
W
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
14